0001458412-21-000008 | 10-K | XBRL Viewer | Crossfirst Bankshares INC

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Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 31, 2020	Feb. 25, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-39028
Entity Registrant Name	CROSSFIRST BANKSHARES, INC.
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	26-3212879
Entity Address, Address Line One	11440 Tomahawk Creek Parkway
Entity Address, City or Town	Leawood
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66211
City Area Code	913)
Local Phone Number	312-6822
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CFB
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 469,054,218
Entity Common Stock, Shares Outstanding		51,645,335
Documents Incorporated by Reference	Part III of this Annual Report on Form 10-K incorporates by reference certain information from the registrant’s definitive proxy statement with respect to its 2021 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.
Entity Central Index Key	0001458412
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash	$ 408,810	$ 187,320
Available-for-sale securities - taxable	177,238	296,047
Available-for-sale securities - tax-exempt	477,350	443,426
Loans, net of allowance for loan losses of $75,295 and $56,896 at December 31, 2020 and 2019, respectively	4,366,602	3,795,348
Premises and equipment, net	70,509	70,210
Restricted equity securities	15,543	17,278
Interest receivable	17,236	15,716
Foreclosed assets held for sale	2,347	3,619
Goodwill and other intangible assets, net	208	7,694
Bank-owned life insurance	67,498	65,689
Other assets	55,962	28,886
Total assets	5,659,303	4,931,233
Deposits
Noninterest-bearing	718,459	521,826
Savings, NOW and money market	2,932,799	2,162,187
Time	1,043,482	1,239,746
Total deposits	4,694,740	3,923,759
Federal funds purchased and repurchase agreements	2,306	14,921
Federal Home Loan Bank advances	293,100	358,743
Other borrowings	963	921
Interest payable and other liabilities	43,766	31,245
Total liabilities	5,034,875	4,329,589
Stockholders’ equity
Common stock	523	520
Treasury stock, at cost	(6,061)	0
Additional paid-in capital	522,911	519,870
Retained earnings	77,652	64,803
Accumulated other comprehensive income	29,403	16,451
Total stockholders’ equity	624,428	601,644
Total liabilities and stockholders’ equity	$ 5,659,303	$ 4,931,233

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Allowance for loan losses	$ 75,295	$ 56,896
Stockholders’ equity
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	200,000,000	200,000,000
Common stock issued (in shares)	52,289,129	51,969,203
Treasury stock held (in shares)	609,613	0

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest Income
Loans, including fees	$ 183,738	$ 191,527	$ 130,075
Available-for-sale securities - taxable	5,073	8,540	7,972
Available-for-sale securities - tax-exempt	13,013	12,011	14,757
Deposits with financial institutions	639	3,053	3,096
Dividends on bank stocks	985	1,087	980
Total interest income	203,448	216,218	156,880
Interest Expense
Deposits	36,585	67,668	39,372
Fed funds purchased and repurchase agreements	164	592	1,068
Federal Home Loan Bank Advances	6,341	6,367	5,841
Other borrowings	109	147	231
Total interest expense	43,199	74,774	46,512
Net Interest Income	160,249	141,444	110,368
Provision for Loan Losses	56,700	29,900	13,500
Net Interest Income after Provision for Loan Losses	103,549	111,544	96,868
Non-interest Income
Non-interest Income	8,360	3,227
Gain on sale of available-for-sale debt securities	1,704	987	538
Impairment of premises and equipment held for sale	0	(424)	(171)
Gain on sale of loans	44	207	827
Income from bank-owned life insurance	1,809	1,878	1,969
Swap fees and credit valuation adjustments, net	(204)	2,753	285
Other non-interest income	1,198	917	967
Total non-interest income	11,733	8,707	6,083
Non-interest Expense
Salaries and employee benefits	57,747	57,114	56,118
Occupancy, net	8,701	8,349	8,214
Professional fees	4,218	2,964	3,320
Deposit insurance premiums	4,301	2,787	3,186
Data processing	2,719	2,544	1,995
Advertising	1,219	2,455	2,691
Software and communication	3,750	3,317	2,630
Foreclosed assets, net	1,239	84	0
Goodwill impairment	7,397	0	0
Other non-interest expense	8,677	8,026	7,601
Total non-interest expense	99,968	87,640	85,755
Net Income Before Taxes	15,314	32,611	17,196
Income tax expense (benefit)	2,713	4,138	(2,394)
Net Income	$ 12,601	$ 28,473	$ 19,590
Basic Earnings Per Share (in dollars per share)	$ 0.24	$ 0.59	$ 0.48
Diluted Earnings Per Share (in dollars per share)	$ 0.24	$ 0.58	$ 0.47
Service charges and fees (rebates) on customer accounts
Non-interest Income
Non-interest Income	$ 2,803	$ 604	$ 444
ATM and credit card interchange income
Non-interest Income
Non-interest Income	$ 4,379	$ 1,785	$ 1,224

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 12,601	$ 28,473	$ 19,590
Other Comprehensive Income
Unrealized gain (loss) on available-for-sale securities	18,847	26,682	(12,755)
Less: income tax (benefit)	4,606	6,545	(3,125)
Unrealized gain (loss) on available-for-sale securities, net of income tax (benefit)	14,241	20,137	(9,630)
Reclassification adjustment for realized gains included in income	1,704	987	538
Less: income tax	415	242	132
Less: reclassification adjustment for realized gains included in income, net of income tax	1,289	745	406
Other comprehensive income (loss)	12,952	19,392	(10,036)
Comprehensive Income	$ 25,553	$ 47,865	$ 9,554

Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands

Total

Cumulative Effect, Period of Adoption, Adjustment

Preferred Stock

Common Stock

Additional Paid-in Capital

Cumulative Effect, Period of Adoption, Adjustment

Retained Earnings

^[1]

Retained Earnings

Cumulative Effect, Period of Adoption, Adjustment

^[1]

Accumulated Other Comprehensive Income (Loss)

Cumulative Effect, Period of Adoption, Adjustment

Treasury Stock

Beginning balance (in shares) at Dec. 31, 2017

1,200,000

30,686,256

^[1]

Beginning balance at Dec. 31, 2017

$ 287,147

$ 12

$ 307

^[1]

$ 256,108

$ 23,694

$ 7,026

$ 0

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Net income

19,590

Change in unrealized appreciation (depreciation) on available-for-sale securities

(10,036)

Issuance of shares (in shares)

^[1]

14,805,128

Issuance of shares

204,215

$ 148

^[1]

204,141

(74)

Issuance of shares from equity based awards (in shares)

^[1]

352,746

Issuance of shares from equity-based awards

(2,131)

$ 4

^[1]

(2,134)

(1)

Retired shares (in shares)

^[1]

(769,808)

Retired shares

(11,024)

$ (8)

^[1]

(8,218)

(2,798)

Preferred dividends declared

(2,100)

Employee receivables from sale of stock

Stock-based compensation

4,439

Employee stock purchase plan additions

165

Ending balance (in shares) at Dec. 31, 2018

1,200,000

45,074,322

^[1]

Ending balance at Dec. 31, 2018

490,336

$ 12

$ 451

^[1]

454,512

38,371

(3,010)

Ending balance (Accounting Standards Update 2016-01) at Dec. 31, 2018

$ 0

$ (69)

$ 69

Ending balance (Accounting Standards Update 2018-07) at Dec. 31, 2018

$ 306

$ 2,159

$ (1,853)

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Net income

28,473

Change in unrealized appreciation (depreciation) on available-for-sale securities

19,392

Issuance of shares (in shares)

^[1]

6,851,213

Issuance of shares

88,871

$ 68

^[1]

88,803

Issuance of shares from equity based awards (in shares)

^[1]

53,668

Issuance of shares from equity-based awards

(245)

$ 1

^[1]

(246)

Retired shares (in shares)

(1,200,000)

(10,000)

^[1]

Retired shares

(30,155)

$ (12)

(30,088)

(55)

Preferred dividends declared

(175)

Employee receivables from sale of stock

117

111

Stock-based compensation

4,688

Employee stock purchase plan additions

Performance award adjustment as a result of ASU 2018-07, net of tax

(34)

(238)

204

Ending balance (in shares) at Dec. 31, 2019

51,969,203

^[1]

Ending balance at Dec. 31, 2019

601,644

$ 0

$ 520

^[1]

519,870

64,803

16,451

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Net income

12,601

Change in unrealized appreciation (depreciation) on available-for-sale securities

12,952

Issuance of shares from equity based awards (in shares)

^[1]

319,926

Issuance of shares from equity-based awards

(1,084)

$ 3

^[1]

(1,087)

Open market common share repurchases (in shares)

^[1]

(609,613)

Open market common share repurchases

(6,061)

Employee receivables from sale of stock

Stock-based compensation

4,321

Employee stock purchase plan additions

Ending balance (in shares) at Dec. 31, 2020

51,679,516

^[1]

Ending balance at Dec. 31, 2020

$ 624,428

$ 0

$ 523

^[1]

$ 522,911

$ 77,652

$ 29,403

$ (6,061)

[1]	(1) Share data has been adjusted to reflect a 2-for-1 stock split effected in the form of a dividend on December 21, 2018.

Consolidated Statements of Stockholders' Equity (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Accounting Standards Update 2018-07
Cumulative effect adjustment, tax	$ 306

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Activities
Net income	$ 12,601	$ 28,473	$ 19,590
Items not requiring (providing) cash
Depreciation and amortization	5,252	5,318	4,675
Provision for Loan Losses	56,700	29,900	13,500
Accretion of discounts and amortization of premiums on securities	6,084	5,568	5,340
Equity based compensation	4,363	4,725	4,604
(Gain) loss on disposal of fixed assets	101	101	(4)
Loss on sale of foreclosed assets	1,156	4	0
Gain on sale of loans	(44)	(207)	(827)
Deferred income taxes	(5,257)	(3,486)	(239)
Net increase in bank-owned life insurance	(1,809)	(1,878)	(1,969)
Net realized gains on available-for-sale debt and equity securities	(1,704)	(1,049)	(538)
Impairment of assets held for sale	0	424	171
Goodwill impairment	7,397	0	0
Dividends on Federal Home Loan Bank stock	(983)	(1,083)	(975)
Changes in
Interest receivable	(1,520)	(1,624)	(1,883)
Other assets	(149)	(3,618)	(3,183)
Other liabilities	(1,735)	12,262	7,588
Net cash provided by operating activities	80,453	73,830	45,850
Investing Activities
Net change in loans	(640,029)	(805,946)	(1,066,483)
Purchases of available-for-sale securities	(76,218)	(233,116)	(209,290)
Proceeds from maturities of available-for-sale securities	142,057	75,478	47,157
Proceeds from sale of available-for-sale securities	31,810	100,907	183,987
Proceeds from the sale of foreclosed assets	1,045	0	0
Purchase of premises and equipment	(6,093)	(850)	(42,832)
Purchase of restricted equity securities	(2,839)	(2,792)	(1,766)
Proceeds from the sale of fixed assets	121	3,324	1,862
Proceeds from sale of restricted equity securities	5,556	1,121	2,919
Net cash used in investing activities	(544,590)	(861,874)	(1,084,446)
Financing Activities
Net increase in demand deposits, savings, NOW and money market accounts	967,245	485,593	646,634
Net increase (decrease) in time deposits	(196,264)	230,069	258,099
Net increase (decrease) in fed funds purchased and repurchase agreements	(12,615)	(60,485)	36,784
Proceeds from Federal Home Loan Bank advances	138,000	105,000	43,000
Repayment of Federal Home Loan Bank advances	(203,643)	(59,242)	(24,230)
Net repayments of Federal Home Loan Bank line of credit	0	0	(25,000)
Retirement of preferred stock	0	(30,000)	0
Issuance of common shares, net of issuance cost	3	88,324	203,848
Proceeds from employee stock purchase plan	151	547	367
Repurchase of common stock	(6,061)	(155)	(11,024)
Acquisition of common stock for tax withholding obligations	(1,236)	(245)	(2,132)
Net decrease in employee receivables	47	117	71
Dividends paid on preferred stock	0	(700)	(2,100)
Net cash provided by (used in) financing activities	685,627	758,823	1,124,317
Increase (Decrease) in Cash and Cash Equivalents	221,490	(29,221)	85,721
Cash and Cash Equivalents, Beginning of Period	187,320	216,541	130,820
Cash and Cash Equivalents, End of Period	408,810	187,320	216,541
Supplemental Cash Flows Information
Interest paid	45,619	73,057	45,414
Income taxes paid (received)	9,692	(29)	29
Equity interest assumed in partial satisfaction of loan	11,189	0	0
Foreclosed assets in settlement of loans	930	3,619	0
Dividends declared and unpaid on preferred stock	$ 0	$ 0	$ 525

Nature of Operations and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Nature of Operations and Summary of Significant Accounting Policies

Organization and Nature of Operations

CrossFirst Bankshares, Inc. (consolidated) (the “Company”), a Kansas corporation, is a bank holding company whose principal activities are the ownership and management of its wholly-owned subsidiaries, CrossFirst Bank (a subsidiary of CrossFirst Bankshares, Inc.) (the “Bank”) and CFSA, LLC (a subsidiary of CrossFirst Bankshares, Inc.) (“CFSA”), which holds title to certain assets. The Bank has three wholly-owned subsidiaries: (i) CrossFirst Investments, Inc. holds investments in marketable securities; (ii) CFBSA I, LLC holds foreclosed assets; and (iii) CFBSA II, LLC holds foreclosed assets. The Company was in the process of dissolving CFSA at December 31, 2020 and it will cease being a subsidiary of the Company in 2021.

The Bank is primarily engaged in providing a full range of banking and financial services to individual and corporate customers through its branches in: (i) Leawood, Kansas; (ii) Wichita, Kansas; (iii) Kansas City, Missouri; (iv) Oklahoma City, Oklahoma; (v) Tulsa, Oklahoma; (vi) Dallas, Texas; and (vii) Frisco, Texas. The Bank is subject to competition from other financial institutions and the regulation of certain federal and state agencies and undergoes periodic examinations by those regulatory authorities.

Basis of Presentation

The Company’s accounting and reporting policies conform to accounting principles generally accepted in the United States (“GAAP”). The consolidated financial statements include the accounts of the Company; the Bank and its wholly-owned subsidiary, CrossFirst Investments, Inc., CFBSA I, LLC, CFBSA II, LLC and CFSA. All significant intercompany accounts and transactions were eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, valuation of deferred tax assets, other-than-temporary impairments (“OTTI”), stock based compensation, derivatives, and fair values of financial instruments.

Change in Presentation Due to Stock Split

On December 18, 2018, the Company announced a 2-for-1 stock split, effected in the form of a dividend, effective December 21, 2018. Share data and per share data were retroactively adjusted for the periods presented to reflect the change in capital structure.

Change in Accounting Principle

On January 1, 2020, the Company adopted the Financial Accounting Standards Board (“FASB”) Accounting Standard Update (“ASU”) 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, which was applied on a prospective basis. A description of the nature and reason for the change in accounting principle is provided below in the recent accounting pronouncements section.

On January 1, 2020, the Company adopted FASB ASU 2019-12, Simplifying the Accounting for Income Taxes, which was applied as of the adoption date. A description of the nature and reason for the change in accounting principle is provided below in the recent accounting pronouncements section.

Changes Affecting Comparability

For the year ended December 31, 2020, the Company consolidated “equipment costs, other asset depreciation and amortization” into “other noninterest expense” within the Consolidated Statements of Income. In addition, the Company broke out “foreclosed assets, net” that was previously consolidated. As a result, changes within the Consolidated Statements of Income in the prior periods were made to conform to the current period presentation. The changes: (i) consolidate lower balance line items or (ii) provide additional detail about the Company’s operations. The changes had no impact on net income.

During 2020, the Company changed loans individually evaluated for impairment. A discussion regarding this change is provided in Note 4: Loans and Allowance for Loan Losses. The Company separated substandard loans into performing and nonperforming categories that were previously consolidated within the loan footnote disclosures. The new approach provided a better estimate of potential losses inherent in the substandard portfolio. The change in disclosure did not impact the Company's impaired loan information at December 31, 2019 or ALLL information for the year ended December 31, 2019 as presented in Note 4: Loans and Allowance for Loan Losses.

Beginning in 2020, the Company consolidated the “Other” line item previously included in stockholders’ equity into retained earnings within the Consolidated Balance Sheets and the Consolidated Statements of Stockholders’ Equity. The consolidation was made due to the immateriality of the “Other” line item. The change had no impact on net income or total stockholders’ equity.

During 2020, the Company moved “equity securities” from the “available-for-sale securities - taxable” into “other assets.” The equity securities were moved from “available-for-sale securities” to “equity securities” in Note 19: Disclosure about Fair Value of Financial Instruments. In addition, the Company moved the “deferred tax asset” into “other assets” due to immateriality. The change had no impact on net income.

Operating Segments

An operating segment is a component of an entity that has separate financial information related to its business activities and is reviewed by the chief operating decision maker on a regular basis to allocate resources and assess performance. The Company identifies the following markets as operating segments: (i) Kansas City, Missouri and Leawood, Kansas; (ii) Wichita, Kansas; (iii) Oklahoma City, Oklahoma; (iv) Tulsa, Oklahoma; (v) Energy bank; and (vi) Dallas and Frisco, Texas. These markets provide similar products and services using a similar process to a similar customer base. Our products and services include, but are not limited to, loans; checking and savings accounts; time deposits and credit cards. Loan products include commercial, real estate, consumer, and Small Business Administration (“SBA”) lending. The regulatory environment is the same for the markets as well. The chief operating decision maker monitors the revenue and costs of the markets; however, operations are managed, including allocation of resources, and financial performance is evaluated on a Company-wide basis. As a result, the markets are aggregated into one reportable segment.

Cash Equivalents

The Company considers all liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2020, cash equivalents consisted primarily of both interest-bearing and noninterest bearing accounts with other banks. Approximately $319 million of the Company’s cash and cash equivalents were held at the Federal Reserve Bank of Kansas City at December 31, 2020. The Company is required to maintain reserve funds in cash and/or on deposit with the Federal Reserve Bank. The reserve required at December 31, 2020 was $0. In addition, the Company is required from time to time to place cash collateral with a third party as part of its back-to-back swap agreements. At December 31, 2020, $32 million was required as cash collateral. At December 31, 2020, the Company’s cash accounts, excluding funds at the Federal Reserve Bank and funds required as cash collateral, exceeded federally insured limits by $44 million.

Securities

Debt securities for which the Company has no immediate plan to sell but which may be sold in the future, are classified as available-for-sale (“AFS”) and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Gains and losses on the sale of debt securities are recorded on the trade date and are determined using the specific identification method.

Equity securities for which the Company has no immediate plan to sell but which may be sold in the future are recorded at fair value with unrealized gains and losses included in earnings. Gains and losses on the sale of equity securities are recorded on the trade date and are determined using the specific identification method.

During the period ended December 31, 2020, the Company received an equity security as part of a restructured loan. The Company elected a measurement alternative for the equity investment since it did not have a readily determinable fair value and did not qualify for the practical expedient to estimate fair value using the net asset value per share. A cost basis was calculated for the equity investment. The recorded balance will adjust for any impairment or adjusted for any observable price changes for an identical or similar investment of the same issuer.

The Company routinely conducts periodic reviews to identify and evaluate each investment security to determine whether an OTTI has occurred. For available-for-sale securities that management has no intent to sell and believes that it more likely than not will not be required to sell prior to recovery, only the credit loss component of the impairment is recognized in earnings, while the noncredit loss is recognized in accumulated other comprehensive income. The credit loss component recognized in earnings is identified as the amount of principal cash flows not expected to be received over the remaining term of the security as projected based on cash flow projections.

Loans

Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances adjusted for unearned income, charge-offs, the allowance for loan losses, any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan.

Nonperforming Loans

Nonperforming loans are loans for which we do not accrue interest income. The accrual of interest on mortgage and commercial loans is discontinued at the time the loan is 90 days past due unless the credit is well secured and in process of collection. A credit is considered well secured if it is secured by collateral in the form of liens or pledges of real or personal property, including securities, that have a realizable value sufficient to discharge the debt (including accrued interest) in full or is secured by the guaranty of a financially responsible party. A debt is in the process of collection if collection of the debt is proceeding in due course either through legal action, including enforcement procedures, or in appropriate circumstances, through collection efforts not involving legal action which are reasonably expected to result in repayment of the debt or in its restoration to a current status. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged off at an earlier date, if collection of principal or interest is considered doubtful.

All interest accrued but not collected for loans that are placed on nonaccrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. When payments are received on nonaccrual loans, payments are applied to principal unless there is a clear indication that the quality of the loan has improved to the point that it can be placed back on accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

Allowance for Loan Losses

The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to income. Loan losses are charged against the allowance when management believes the loan balance is not collectible. Subsequent recoveries, if any, are credited to the allowance.

The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of its ability to collect the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.

The allowance consists of allocated and general components. The allocated component relates to loans that are individually classified as impaired. For those loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component covers the remaining pool of loans and is based on historical charge-off experience and expected loss given default derived from the Company’s internal risk rating process. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data.

A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on an individual loan basis by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price or the fair value of the collateral, if the loan is collateral dependent.

Premises and Equipment

Depreciable assets are stated at cost less accumulated depreciation. Depreciation is charged to expense using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are capitalized and depreciated using the straight-line method over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Expected terms include lease option periods to the extent that the exercise of such options is reasonably assured.

The estimated useful lives for each major depreciable classification of premises and equipment are as follows:

Buildings and improvements

35 - 40 years

Leasehold improvements

5 - 15 years

Furniture and fixtures

5 - 7 years

Equipment

3 - 5 years

Long-Lived Asset Impairment

The Company evaluates the recoverability of the carrying value of long-lived assets whenever events or circumstances indicate the carrying amount may not be recoverable. If a long-lived asset is tested for recoverability and the undiscounted estimated future cash flows expected to result from the use and eventual disposition of the asset is less than the carrying amount of the asset, the asset cost is adjusted to fair value and an impairment loss is recognized as the amount by which the carrying amount of a long-lived asset exceeds its fair value.

Restricted Equity Securities

Restricted equity securities include investments in FHLB Topeka, Bankers’ Bank of Kansas and Bankers Bank stock. FHLB Topeka is a Federal Home Loan Bank and its stock is a required investment for institutions that are members of the Federal Home Loan System. The required investment in the common stock is based on a predetermined formula. The Bankers’ Bank of Kansas and Bankers Bank are correspondent banks located in Wichita, Kansas and Oklahoma City, Oklahoma, respectively. Each of these investments is carried at cost and evaluated for impairment.

Bank-Owned Life Insurance

The Company has purchased life insurance policies on certain key employees that are accounted for under the fair value method. Bank-owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value. Changes in cash surrender value are recorded in earnings in the period in which the changes occur.

Foreclosed Assets Held-for-Sale

Assets acquired through, or in lieu of, loan foreclosure are held-for-sale and are initially recorded at fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in net income or expenses from foreclosed assets.

Goodwill

Goodwill was evaluated annually for impairment or more frequently if impairment indicators were present. A qualitative assessment was performed to determine whether the existence of events or circumstances led to a determination that it was more likely than not the fair value was less than the carrying amount, including goodwill. If, based on the evaluation, it was determined to be more likely than not that the fair value was less than the carrying value, then goodwill was tested further for impairment. If the implied fair value of goodwill was lower than its carrying amount, a goodwill impairment was indicated and goodwill was written down to its implied fair value.

Core Deposit Intangible

The core deposit intangible represents the identified intangible asset relating to the deposit relationships acquired in past business combinations. The value of the core deposit intangible is based primarily upon the expected future benefits of earnings capacity attributable to those deposits.

Related Party Transactions

The Company extends credit and receives deposits from related parties. In management’s opinion, the loans and deposits were made in the ordinary course of business and made on similar terms as those prevailing at the time with other persons. Related party loans totaled $16 million at both December 31, 2020 and 2019. Related party deposits totaled $55 million and $66 million at December 31, 2020 and 2019, respectively.

Stock-Based Compensation

The Company accounts for all stock-based compensation transactions in accordance with Accounting Standard Codification (“ASC”) 718, Compensation - Stock Compensation, which requires that stock compensation transactions be recognized as compensation expense in the consolidated statement of income and other comprehensive income based on their fair values on the measurement date. The Company recognizes forfeitures as they occur. New shares are issued upon exercise of an award. The Company records permanent tax differences through the income tax provision upon vesting or exercise of a stock-based award. The various stock-based compensation plans are described more fully in Note 16: Stock-Based Compensation.

Transfers of Financial Assets

Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when: (i) the assets have been isolated from the Company put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership; (ii) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets; and (iii) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets.

Income Taxes

The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: (i) current; and (ii) deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability or balance sheet method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities and enacted changes in tax rates and laws are recognized in the period in which they occur.

Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term, more likely than not, means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more likely than not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more likely than not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management’s judgment. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.

The Company recognizes interest and penalties on income taxes as a component of income tax expense. The Company files consolidated income tax returns with its subsidiaries. Due to the carry forward of federal net operating losses, all prior years remain subject to examination by federal tax authorities.

Earnings Per Share

Basic earnings per share represent net income available to common stockholders divided by the weighted average number of common shares outstanding during each period. Diluted earnings per share reflect additional potential shares that would have been outstanding if dilutive potential common stock had been issued, as well as any adjustment to income that would result from the assumed issuance. Potential common stock that may be issued by the Company is determined using the treasury stock method.

Fair Values of Financial Instruments

The Company follows the applicable accounting guidance for fair value measurements and disclosures for all applicable financial and nonfinancial assets and liabilities. ASC 820, Fair Value Measurements and Disclosures (“ASC 820”), defines fair value, establishes a framework for measuring fair value under GAAP and enhances disclosures about fair value measurements. The Company values financial instruments based upon quoted market prices, where available. If market prices are not available, fair value is based on pricing models that use available information including quoted prices for similar assets or liabilities in active markets, market indicators, and industry and economic events. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.

Comprehensive Income

Comprehensive income consists of net income and other comprehensive income, net of applicable income taxes. Other comprehensive income includes unrealized appreciation (depreciation) on available-for-sale securities.

Derivative Financial Instruments

ASC 815, Derivatives and Hedging, provides the disclosure requirements for derivatives and hedging activities with the intent to provide users of financial statements with an enhanced understanding of: (i) how and why an entity uses derivative instruments; (ii) how the entity accounts for derivative instruments and related hedged items; and (iii) how derivative instruments and related hedged items affect an entity’s financial position, financial performance, and cash flows. Further, qualitative disclosures are required that explain the Company’s objectives and strategies for using derivatives, as well as quantitative disclosures about the fair value of and gains and losses on derivative instruments, and disclosures about credit risk related contingent features in derivative instruments.

As required by ASC 815, the Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge.

In accordance with the Financial Accounting Standards Board's (“FASB”) fair value measurement guidance in ASU 2011-04, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counter-party portfolio.

Initial Public Offering

On August 19, 2019, the Company completed its initial public offering (“IPO”) of common shares. The Company issued and sold 5,750,000 common shares at a public offering price of $14.50 per share. After deducting the underwriting discounts and offering expenses, the Company received total net proceeds of $76 million from the IPO. In addition, certain selling stockholders participated in the offering and sold an aggregate of 1,261,589 common shares at a public offering price of $14.50 per share. The Company did not receive any proceeds from the sales of shares by the selling stockholders.

On September 17, 2019, the underwriters partially exercised their option to purchase additional shares. The Company issued and sold 844,362 common shares at a public offering price of $14.50 per share. After deducting the underwriting discounts and offering expenses, the Company received total net proceeds of $11 million.

Emerging Growth Company (“EGC”)

The Company is currently an EGC. An EGC may take advantage of reduced reporting requirements and is relieved of certain other significant requirements that are otherwise generally applicable to public companies. Among the reductions and reliefs, the Company elected to extend the transition period for complying with new or revised accounting standards affecting public companies. This means that the financial statements the Company files or furnishes, will not be subject to all new or revised accounting standards generally applicable to public companies for the transition period for so long as the Company remains an EGC or until the Company affirmatively and irrevocably opts out of the extended transition period under the JOBS Act.

Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”)

The CARES Act allowed financial institutions to elect not to consider whether loan modifications relating to the COVID-19 pandemic that they make between March 1, 2020 and December 31, 2020 are troubled debt restructurings (“TDRs”), which require additional disclosures. The relief can be applied to modifications of loans to borrowers that were not more than 30 days past due as of December 31, 2019. The Company elected to apply the guidance during the first quarter of 2020. The review of loans that met the criteria was overseen by the Office of the Chief Credit Officer and his team.

Extension of TDR Relief in the Consolidated Appropriations Act, 2021

On December 27, 2020 the Consolidated Appropriations Act, 2021 was signed into law, which extended the period during which the Company may elect not to consider whether loan modifications relating to the COVID-19 pandemic are TDRs through January 2, 2022. The Company elected to apply the guidance.

Recent Accounting Pronouncements

The following ASUs represent changes to current accounting guidance that will be adopted in future years:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-05

Revenue from Contracts with Customers (Topic 606) and Leases (Topic 842): Effective Dates for Certain Entities

Effective immediately, but included here for information purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective date for ASU 2016-02 (Leases).

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

No expected impact to the financial statements, but delays certain ASUs for private companies, and EGCs that elected to use the private company effective dates for new or revised accounting standards.

If the Company loses its EGC status during the fiscal year, the Company would be required to review all ASUs as a Public Business Entity (“PBE”) and adopt any ASU effective for PBEs as of the first day of that year.

ASU 2019-10

Financial Instruments-Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates

Effective immediately, but included here for informational purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective dates for all entities related to: (i) credit losses - ASU 2016-13; (ii) goodwill - ASU 2017-04; (iii) leases - ASU 2016-02; and (iv) hedging - ASU 2017-12

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

No expected impact to the financial statements, but delays certain ASUs for private companies, smaller reporting companies and EGCs that elected to use the private company effective dates for new or revised accounting standards.

If a company loses its EGC status during the fiscal year, the company would be required to review all ASUs as a PBE and adopt any ASU effective for PBEs as of the first day of that year.

ASU 2018-15

Intangibles-Goodwill and Other-Internal-Use Software

ASU 2018-15 will be effective for the Company on December 31, 2021.

Early adoption is permitted including adoption in any interim period. The amendments will be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.

Aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal use software.

The Company plans to use the guidance on a prospective basis.

At this time, an estimate of the impact to the Company’s financial statements is not known, but may increase our intangible asset balance and create an amortization period for costs previously expensed immediately.

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023.

The Company will monitor the progress and the requirements related to adoption.

Requires an entity to utilize a new impairment model known as the current expected credit loss model to estimate its lifetime expected credit loss and record an allowance that, when deducted from amortized cost basis of the financial asset, presents the net amount expected to be collected on the financial asset.

The Company established a committee of individuals from applicable departments to oversee the implementation process. The Company completed the third party software implementation phase that included data capture and portfolio segmentation amongst other items.

The Company completed parallel runs in 2019. During the period ended December 31, 2020, the Company continued to perform parallel runs using 2020 data and continued to recalibrate inputs as necessary. The Company is evaluating the internal control changes that will be necessary to transition to the third-party platform.

At this time, an estimate of the impact cannot be established as the Company continues to evaluate the inputs into the model. The actual impact could be significantly affected by the composition, characteristics, and quality of the underlying loan portfolio at the time of adoption.

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

The Company expects to implement this standard on January 1, 2022, unless the Company loses its EGC status during 2021. If EGC status changes, the Company would therefore be required to implement the ASU as of the beginning of 2021.

Requires lessees and lessors to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements.

The update requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach with the option to elect certain practical expedients.

The update will also increase disclosures around leases, including qualitative and specific quantitative measures.

The Company expects to apply the update as of the beginning of the period of adoption and the Company does not plan to restate comparative periods. The Company expects to elect certain optional practical expedients.

The Company gathered all potential lease and embedded lease agreements and is evaluating the applicability and impact to the financial statements.

The Company’s current operating leases relate primarily to five branch locations. Based on the current leases, the Company anticipates recognizing a lease liability and related right-to-use asset on its balance sheet, with an immaterial impact to its income statement compared to the current lease accounting model. However, the ultimate impact of the standard will depend on the Company's lease portfolio as of the adoption date.

Accounting Guidance Adopted During Fiscal Years 2020, 2019, and 2018

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The ASU provides optional expedients and exceptions to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met.

The ASU only applies to transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided by the amendments do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. The amendments include:

(1) Optional expedients to contract modifications that allow the Company to adjust the effective interest rate of receivables and debt, account for lease modifications as a continuation of the existing lease, and remove the requirement to reassess its original conclusions for contract modifications about whether that contract contains an embedded derivative that is clearly and closely related to the economic characteristics and risks of the host contract under Subtopic 815-15, Derivatives and Hedging—Embedded Derivatives;

(2) Exceptions to the guidance in Topic 815 related to changes in the critical terms of a hedging relationship due to reference rate reform; and

(3) Optional expedients for cash flow and fair value hedges.

The Company had more than $1 billion in loans tied to LIBOR as of December 31, 2020.

The Company does not believe the adoption will have a material accounting impact on the Company’s consolidated financial position or results of operations. Additionally, LIBOR fallback language has been included in key loan provisions of new and renewed loans in preparation for transition from LIBOR to the new benchmark rate when such transition occurs. This standard is expected to ease the administrative burden in accounting for the future effects of reference rate reform.

The ASU allows the Company to recognize the modification related to LIBOR as a continuation of the old contract, rather than a cancellation of the old contract resulting in a write off of unamortized fees and creation of a new contract.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The ASU simplifies the accounting for income taxes. Among other changes, the ASU:

(1) Removes the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items;

(2) Removes the exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year;

(3) Requires an entity to recognize a franchise tax that is partially based on income as an income-based tax and account for any incremental amount incurred as a nonincome based tax; and

(4) Requires an entity to reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date.

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

Improves the effectiveness of disclosures in the notes to financial statements by facilitating clear communication of the information. The amendments modify certain disclosure requirements of fair value measurements in Topic 820, Fair Value Measurement.

Entities are no longer required to disclose transfers between Level 1 and Level 2 of the fair value hierarchy or qualitatively disclose the valuation process for Level 3 fair value measurements. The updated guidance requires disclosure of the changes in unrealized gains and losses for the period included in Other Comprehensive Income for recurring Level 3 fair value measurements. Entities are required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The additional provisions of the guidance should be adopted prospectively. The eliminated requirements should be adopted retrospectively.

The adoption did not have a material impact to the Company’s financial statements.

No transfers between Level 1 and Level 2 occurred in 2019 or 2020 and the Company did not have any recurring Level 3 fair value measurements that created an unrealized gain or loss in Other Comprehensive Income. In addition, the Company previously disclosed the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements.

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

Eliminates Step 2 from the goodwill impairment test which required entities to compute the implied fair value of goodwill. An entity should perform an annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit.

On the date of adoption, there was no impact to the Company’s financial statements.

The Company’s process for evaluating goodwill impairment was modified to align with the elimination of Step 2. In the second quarter of 2020, the Company performed a Step 0 analysis then a Step 1 analysis and determined that goodwill was fully impaired.

ASU 2018-07:

Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting

January 2019

Early adoption

Expanded the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees, excluding share-based payments used to effectively provide: (i) financing to the issuer or (ii) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606, Revenue from Contracts with Customers.

The amendments include: (i) grants are measured at grant-date fair value of the equity instruments; (ii) equity-classified nonemployee share-based payment awards are measured at the grant date;

(iii) performance based awards are measured based on the probability of satisfying the performance conditions and (iv) in general, non-employee share-based payment awards will continue to be subject to the requirements of ASC 718 unless modified after the good has been delivered, the service has been rendered, any other conditions necessary to earn the right to benefit from the instrument have been satisfied, and the nonemployee is no longer providing goods or services.

The Company had 216,960 stock-based awards to non-employees as of the implementation date, including 116,960 performance-based restricted stock units. The adoption of the ASU allowed the Company to: (i) set the fair market value of the non-employee awards as of the adoption date; and (ii) start to expense the performance-based restricted stock units based on the probability of satisfying the performance conditions.

Adoption of ASU 2018-07 required the Company to make a one time transfer of $2 million from retained earnings to additional paid in capital.

In addition, the Company recorded a $306 thousand deferred tax asset that was offset with retained earnings to account for the tax impact.

The Company will record forfeitures as they occur and base fair market values on the expected term, like the Company’s accounting for employee-based awards.

ASU 2016-01:

Financial Instruments-Overall (Subtopic 825-10)

January 2019

Required equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income.

Emphasized the existing requirement to use exit prices to measure fair value for disclosure purposes and clarifies that entities should not make use of practicability exceptions in determining the fair value of loans.

The Company transferred $69 thousand from accumulated other comprehensive loss to retained earnings in January 2019.

There was no impact to the income statement on the adoption date.

ASU 2014-09:

Revenue from Contracts with Customers

January 2019

Amended guidance related to revenue from contracts with customers.

The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.

Replaced nearly all existing revenue recognition guidance, including industry specific guidance, established a new control based revenue recognition model, changed the basis for deciding when revenue is recognized over time or at a point in time, provided new and more detailed guidance on specific topics and expands and improves disclosures about revenue.

The accounting update did not materially impact the financial statements or recognition of revenues.

The update did not apply to revenue associated with financial instruments, including loans and securities that are accounted for under other GAAP, which comprises a significant portion of the Company’s revenue stream.

In addition, the Company’s noninterest income is generated by customer transactions or through the passage of time and as a result the pattern or timing of income recognition was not impacted.

ASU 2018-02:

Income Statement Reporting Comprehensive Income (Topic 220)

February 2018, retrospectively applied to 2017

Allowed a reclassification from accumulated other

comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act.

The Company recognized a reclassification totaling $1 million related to items in accumulated other comprehensive income.

ASU 2017-09:

Compensation -Stock Compensation (Topic 718): Scope of Modification Accounting

January 2018

Provides guidance about which changes to terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. An entity should account for the effects of a modification unless all the following are met: (i) The fair value does not change as a result of the modification or the modification

does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification;

(ii) the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified and (iii) the classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified.

The adoption of ASU 2017-09 did not have a significant impact on the Company’s consolidated financial statements.

Earnings Per Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Earnings Per Share

The following table presents the computation of basic and diluted earnings per share:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands, except per share data)
Earnings per Share
Net income	$	12,601	$	28,473	$	19,590
Less: preferred stock dividends	—		175		2,100
Net income available to common stockholders	$	12,601	$	28,298	$	17,490
Weighted average common shares	52,070,624		47,679,184		36,422,612
Earnings per share	$	0.24	$	0.59	$	0.48
Dilutive Earnings Per Share
Net income available to common stockholders	$	12,601	$	28,298	$	17,490
Weighted average common shares	52,070,624		47,679,184		36,422,612
Effect of dilutive shares	477,923		896,951		1,069,955
Weighted average dilutive common shares	52,548,547		48,576,135		37,492,567
Diluted earnings per share	$	0.24	$	0.58	$	0.47
Stock-based awards not included because to do so would be antidilutive	1,014,639		521,659		407,852

Securities

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Securities

Available-for-Sale Securities

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale securities consisted of the following:


	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	104,839	$	4,277	$	—	$	109,116
Collateralized mortgage obligations - GSE residential	52,070		984		42		53,012
State and political subdivisions	454,486		33,642		31		488,097
Corporate bonds	4,259		104		—		4,363
Total available-for-sale securities	$	615,654	$	39,007	$	73	$	654,588


	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	151,037	$	1,668	$	193	$	152,512
Collateralized mortgage obligations - GSE residential	128,876		625		289		129,212
State and political subdivisions	436,448		19,996		104		456,340
Corporate bonds	1,321		88		—		1,409
Total available-for-sale securities	$	717,682	$	22,377	$	586	$	739,473

The carrying value of securities pledged as collateral was $16 million and $41 million at December 31, 2020 and 2019, respectively.

The following table summarizes the gross realized gains and losses from sales or maturities of AFS securities:


	For the Year Ended December 31, 2020
	Gross Realized Gains(1)		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	1,788	$	84	$	1,704
(1) Included $75 thousand related to a previously disclosed OTTI municipal security that was settled in 2020.


	For the Year Ended December 31, 2019
	Gross Realized Gains		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	1,043	$	56	$	987


	For the Year Ended December 31, 2018
	Gross Realized Gains		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	2,083	$	1,545	$	538

Maturity Schedule

The amortized cost, fair value, and weighted average yield of available-for-sale securities by contractual maturity, are shown below:


	December 31, 2020
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	48		$	199		$	104,592		$	104,839
Estimated fair value	$	—		$	51		$	212		$	108,853		$	109,116
Weighted average yield(2)	—		%	4.57		%	3.95		%	1.96		%	1.96		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,483		$	49,587		$	52,070
Estimated fair value	$	—		$	—		$	2,721		$	50,291		$	53,012
Weighted average yield(2)	—		%	—		%	2.77		%	1.02		%	1.11		%
State and political subdivisions
Amortized cost	$	653		$	7,661		$	62,313		$	383,859		$	454,486
Estimated fair value	$	657		$	7,846		$	67,844		$	411,750		$	488,097
Weighted average yield(2)	8.18		%	5.40		%	3.40		%	2.94		%	3.05		%
Corporate bonds
Amortized cost	$	—		$	358		$	3,901		$	—		$	4,259
Estimated fair value	$	—		$	368		$	3,995		$	—		$	4,363
Weighted average yield(2)	—		%	4.70		%	4.54		%	—		%	4.55		%
Total available-for-sale securities
Amortized cost	$	653		$	8,067		$	68,896		$	538,038		$	615,654
Estimated fair value	$	657		$	8,265		$	74,772		$	570,894		$	654,588
Weighted average yield(2)	8.18		%	5.36		%	3.44		%	2.57		%	2.71		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.


	December 31, 2019
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	—		$	329		$	150,708		$	151,037
Estimated fair value	$	—		$	—		$	341		$	152,171		$	152,512
Weighted average yield(2)	—		%	—		%	4.01		%	2.57		%	2.58		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,527		$	126,349		$	128,876
Estimated fair value	$	—		$	—		$	2,594		$	126,618		$	129,212
Weighted average yield(2)	—		%	—		%	2.77		%	2.47		%	2.47		%
State and political subdivisions
Amortized cost	$	523		$	6,050		$	51,747		$	378,128		$	436,448
Estimated fair value	$	523		$	6,169		$	55,001		$	394,647		$	456,340
Weighted average yield(2)	9.38		%	5.76		%	3.59		%	3.08		%	3.19		%
Corporate bonds
Amortized cost	$	—		$	—		$	1,321		$	—		$	1,321
Estimated fair value	$	—		$	—		$	1,409		$	—		$	1,409
Weighted average yield(2)	—		%	—		%	5.68		%	—		%	5.68		%
Total available-for-sale securities
Amortized cost	$	523		$	6,050		$	55,924		$	655,185		$	717,682
Estimated fair value	$	523		$	6,169		$	59,345		$	673,436		$	739,473
Weighted average yield(2)	9.38		%	5.76		%	3.60		%	2.85		%	2.94		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

Gross Unrealized Losses

Certain investments in AFS securities are reported in the consolidated financial statements at an amount less than their historical cost. Total fair value of these investments at December 31, 2020 and 2019, was $18 million and $108 million, which was approximately 3% and 15%, respectively, of the Company’s available-for-sale debt security portfolio.

The unrealized losses on the Company’s investments in state and political subdivisions were caused by interest rate changes and adjustments in credit ratings. The contractual terms of those investments do not permit the issuer to settle the securities at a price less than the amortized cost basis of the investments. The unrealized losses on the Company’s investments in collateralized mortgage-backed securities and obligations were caused by interest rate changes and market assumptions about prepayment speeds.

The Company expects to recover the amortized cost basis over the term of the securities. Because the Company does not intend to sell the investments and it is not more likely than not the Company will be required to sell the investments before recovery of their amortized cost basis, which may be maturity, the Company does not consider those investments to be OTTI at December 31, 2020.

Based on evaluation of available evidence, including recent changes in market interest rates, credit rating information and information obtained from regulatory filings, management believes the declines in fair value for these securities are temporary.

The following table shows available-for-sale securities gross unrealized losses, the number of securities that are in an unrealized loss position, and fair value of the Company’s investments with unrealized losses that are not deemed to be OTTI, aggregated by investment class and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2020 and 2019:


	December 31, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-Sale Securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	9,933		42		5	—		—		—	9,933		42		5
State and political subdivisions	8,525		31		8	25		—		1	8,550		31		9
Corporate bonds	—		—		—	—		—		—	—		—		—
Total temporarily impaired AFS securities	$	18,458	$	73	13	$	25	$	—	1	$	18,483	$	73	14


	December 31, 2019
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-Sale Securities
Mortgage-backed - GSE residential	$	7,959	$	38	2	$	20,396	$	155	4	$	28,355	$	193	6
Collateralized mortgage obligations - GSE residential	48,980		199		7	8,622		90		9	57,602		289		16
State and political subdivisions	21,412		102		11	167		2		2	21,579		104		13
Corporate bonds	530		—		1	—		—		—	530		—		1
Total temporarily impaired AFS securities	$	78,881	$	339	21	$	29,185	$	247	15	$	108,066	$	586	36

Other-Than-Temporary Impairment

Upon acquisition of a security, the Company decides whether it is within the scope of the accounting guidance for beneficial interests in securitized financial assets or will be evaluated for impairment under the accounting guidance for investments.

The accounting guidance for beneficial interests in securitized financial assets provides incremental impairment guidance for a subset of the securities within the scope of the guidance. For securities where the security is a beneficial interest in securitized financial assets, the Company uses the beneficial interests in securitized financial asset impairment model. For securities where the security is not a beneficial interest in securitized financial assets, the Company uses the securities impairment model.

The Company routinely conducts periodic reviews to identify and evaluate each investment security to determine whether an OTTI has occurred. Economic models are used to determine whether an OTTI has occurred on these securities. The Company recorded no OTTI losses on AFS securities in 2020, 2019 or 2018.

Equity Securities

Equity securities consist of a $2 million investment in Community Reinvestment Act (“CRA”) mutual fund and an $11 million privately-held security acquired in 2020 as part of a debt restructuring. Equity securities are included in other assets on the Consolidated Balance Sheets.

The privately-held security was acquired in partial satisfaction of debts previously contracted. The Company used a discounted cash flow model, a market transactions model and a public valuation approach to determine the security’s cost basis. The Company elected a measurement alternative that allows the security to remain at cost until an impairment is identified or an observable price change for an identical or similar investment of the same issuer occurs. Impairment is recorded when there is evidence that the expected fair value of the investment has declined to below the recorded cost. No changes to the cost basis occurred in 2020. The Company is required to make good faith efforts to dispose of the security. The shares may be held for a maximum of five years, subject to a five year extension that would result in a change to Tier 1 capital.

The following is a summary of the recorded fair value and the unrealized and realized gains and losses recognized in net income on equity securities:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Net gains recognized during the period on equity securities	$	46	$	62
Less: net gains recognized during the period on equity securities sold during the period	—		—
Unrealized gain recognized during the reporting period on equity securities still held at the reporting date	$	46	$	62

Loans and Allowance for Loan Leases

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Loans and Allowance for Loan Losses

Categories of loans at December 31, 2020 and 2019 include:


	As of December 31,
	2020		2019
	(Dollars in thousands)
Commercial	$	1,338,757	$	1,356,817
Energy	345,233		408,573
Commercial real estate	1,179,534		1,024,041
Construction and land development	563,144		628,418
Residential and multifamily real estate	680,932		398,695
Paycheck Protection Program ("PPP")	292,230		—


Consumer	55,270		45,163
Gross loans	4,455,100		3,861,707
Less: Allowance for loan losses	75,295		56,896
Less: Net deferred loan fees and costs	13,203		9,463

Net loans	$	4,366,602	$	3,795,348

The following tables summarize the activity in the allowance for loan losses by portfolio segment and disaggregated based on the Company’s impairment methodology. The allocation in one portfolio segment does not preclude its availability to absorb losses in other segments:


	As of or For the Year Ended December 31, 2020
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	19,959		16,867		15,853		96		3,700		—		225		56,700
Charged-off	(31,205)		(5,091)		(1,584)		—		(445)		—		(104)		(38,429)
Recoveries	75		—		—		—		41		—		12		128
Ending balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Ending balance
Individually evaluated for impairment	$	1,115	$	3,370	$	5,048	$	—	$	—	$	—	$	—	$	9,533
Collectively evaluated for impairment	$	23,578	$	14,971	$	17,306	$	3,612	$	5,842	$	—	$	453	$	65,762
Allocated to loans
Individually evaluated for impairment	$	44,678	$	26,045	$	44,318	$	—	$	6,329	$	—	$	244	$	121,614
Collectively evaluated for impairment	$	1,294,079	$	319,188	$	1,135,216	$	563,144	$	674,603	$	292,230	$	55,026	$	4,333,486
Ending balance	$	1,338,757	$	345,233	$	1,179,534	$	563,144	$	680,932	$	292,230	$	55,270	$	4,455,100


	As of or For the Year Ended December 31, 2019
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826
Provision charged to expense	27,219		(1,273)		1,771		1,041		1,090		—		$	52	29,900
Charged-off	(7,954)		(3,000)		(441)		—		(8)		—		$	(20)	(11,423)
Recoveries	15		576		—		—		—		—		$	2	593
Ending balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Ending balance
Individually evaluated for impairment	$	19,942	$	1,949	$	210	$	—	$	197	$	—	$	—	$	22,298
Collectively evaluated for impairment	$	15,922	$	4,616	$	7,875	$	3,516	$	2,349	$	—	$	320	$	34,598
Allocated to loans
Individually evaluated for impairment	$	70,876	$	9,744	$	10,492	$	—	$	2,388	$	—	$	—	$	93,500
Collectively evaluated for impairment	$	1,285,941	$	398,829	$	1,013,549	$	628,418	$	396,307	$	—	$	45,163	$	3,768,207
Ending balance	$	1,356,817	$	408,573	$	1,024,041	$	628,418	$	398,695	$	—	$	45,163	$	3,861,707


	As of or For the Year Ended December 31, 2018
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	11,378	$	7,726	$	4,668	$	1,200	$	905	$	—	$	214	$	26,091
Provision charged to expense	5,720		3,717		2,087		1,275		559		—		142		13,500
Charged-off	(976)		(1,256)		—		—		—		—		(71)		(2,303)
Recoveries	462		75		—		—		—		—		1		538
Ending balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826

Credit Risk Profile

The Company analyzes its loan portfolio based on internal rating categories (grades 1 - 8), portfolio segmentation and payment activity. These categories are utilized to develop the associated ALLL. A description of the loan grades and segments follows:

Loan Grades

•Pass (risk rating 1-4) - Considered satisfactory. Includes borrowers that generally maintain good liquidity and financial condition or the credit is currently protected with sales trends remaining flat or declining. Most ratios compare favorably with industry norms and Company policies. Debt is programmed and timely repayment is expected.

•Special Mention (risk rating 5) - Borrowers generally exhibit adverse trends in operations or an imbalanced position in their balance sheet that has not reached a point where repayment is jeopardized. Credits are currently protected but, if left uncorrected, the potential weaknesses may result in deterioration of the repayment prospects for the credit or in the Company’s credit or lien position at a future date. These credits are not adversely classified and do not expose the Company to enough risk to warrant adverse classification.

•Substandard (risk rating 6) - Credits generally exhibit well-defined weakness(es) that jeopardize repayment. Credits are inadequately protected by the current worth and paying capacity of the obligor or of the collateral pledged. A distinct possibility exists that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard. Substandard loans include both performing and nonperforming loans and are broken out in the table below.

•Doubtful (risk rating 7) - Credits which exhibit weaknesses inherent in a substandard credit with the added characteristic that these weaknesses make collection or liquidation in full highly questionable or improbable based on existing facts, conditions and values. Because of reasonably specific pending factors, which may work to the advantage and strengthening of the assets, classification as a loss is deferred until its more exact status may be determined.

•Loss (risk rating 8) - Credits which are considered uncollectible or of such little value that their continuance as a bankable asset is not warranted.

Loan Portfolio Segments

•Commercial - Includes loans to commercial customers for use in financing working capital, equipment purchases and expansions. Repayment is primarily from the cash flow of a borrower’s principal business operation. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations.

•Energy - Includes loans to oil and natural gas customers for use in financing working capital needs, exploration and production activities, and acquisitions. The loans are repaid primarily from the conversion of crude oil and natural gas to cash. Credit risk is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations. Energy loans are typically collateralized with the underlying oil and gas reserves.

•Commercial Real Estate - Loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operations of the property securing the loan or the business conducted on the property securing the loan. These are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Construction and Land Development - Loans are usually based upon estimates of costs and estimated value of the completed project and include independent appraisal reviews and a financial analysis of the developers and property owners. Sources of

repayment include permanent loans, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are higher risk than other real estate loans due to their ultimate repayment being sensitive to interest rate changes, general economic conditions and the availability of long-term financing. Credit risk may be impacted by the creditworthiness of a borrower, property values and the local economies in the borrower’s market areas.

•Residential and Multifamily Real Estate - The loans are generally secured by owner-occupied 1-4 family residences or multifamily properties. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers or underlying tenants. Credit risk in these loans can be impacted by economic conditions within or outside the borrower’s market areas that might impact either property values, a borrower’s personal income, or residents’ income.

•PPP - The loans were established by the CARES Act which authorized forgivable loans to small businesses to pay their employees during the COVID-19 pandemic. The program requires all loan terms to be the same for everyone. The loans are 100% guaranteed by the SBA and repayment is primarily dependent on the borrower’s cash flow or SBA repayment approval.

•Consumer - The loan portfolio consists of revolving lines of credit and various term loans such as automobile loans and loans for other personal purposes. Repayment is primarily dependent on the personal income and credit rating of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the borrower’s market area) and the creditworthiness of a borrower.

Loans by Risk Rating

The following tables present the credit risk profile of the Company’s loan portfolio based on an internal rating category and portfolio segment:


	As of December 31, 2020
	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
Commercial	$	1,182,519	$	66,142	$	63,407	$	26,124	$	565	$	—	$	1,338,757
Energy	145,598		90,134		83,574		22,177		3,750		—		345,233
Commercial real estate	1,035,056		67,710		57,680		19,088		—		—		1,179,534
Construction and land development	561,871		125		1,148		—		—		—		563,144
Residential and multifamily real estate	672,327		305		5,199		3,101		—		—		680,932
PPP	292,230		—		—		—		—		—		292,230


Consumer	55,026		—		—		244		—		—		55,270
Total	$	3,944,627	$	224,416	$	211,008	$	70,734	$	4,315	$	—	$	4,455,100


	As of December 31, 2019
	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
Commercial	$	1,258,952	$	27,069	$	38,666	$	32,130	$	—	$	—	$	1,356,817
Energy	392,233		9,460		2,340		—		4,540		—		408,573
Commercial real estate	1,007,921		9,311		5,746		120		943		—		1,024,041
Construction and land development	628,418		—		—		—		—		—		628,418
Residential and multifamily real estate	394,495		1,789		469		1,942		—		—		398,695
PPP	—		—		—		—		—		—		—


Consumer	45,163		—		—		—		—		—		45,163
Total	$	3,727,182	$	47,629	$	47,221	$	34,192	$	5,483	$	—	$	3,861,707

Loan Portfolio Aging Analysis

The following tables present the Company’s loan portfolio aging analysis of the recorded investment in loans as of December 31, 2020 and 2019:


	As of December 31, 2020
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
Commercial	$	8,497	$	264	$	11,236	$	19,997	$	1,318,760	$	1,338,757	$	—
Energy	—		—		7,173		7,173		338,060		345,233		372
Commercial real estate	63		7,677		4,825		12,565		1,166,969		1,179,534		—
Construction and land development	—		—		—		—		563,144		563,144		—
Residential and multifamily real estate	1,577		—		3,520		5,097		675,835		680,932		652
PPP	—		—		—		—		292,230		292,230		—


Consumer	—		—		—		—		55,270		55,270		—
Total	$	10,137	$	7,941	$	26,754	$	44,832	$	4,410,268	$	4,455,100	$	1,024


	As of December 31, 2019
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
Commercial	$	1,091	$	276	$	30,911	$	32,278	$	1,324,539	$	1,356,817	$	37
Energy	2,340		—		4,593		6,933		401,640		408,573		53
Commercial real estate	316		—		4,589		4,905		1,019,136		1,024,041		4,501
Construction and land development	196		—		—		196		628,222		628,418		—
Residential and multifamily real estate	2,347		—		1,919		4,266		394,429		398,695		—
PPP	—		—		—		—		—		—		—


Consumer	2		254		—		256		44,907		45,163		—
Total	$	6,292	$	530	$	42,012	$	48,834	$	3,812,873	$	3,861,707	$	4,591

Impaired Loans

A loan is considered impaired, in accordance with the impairment accounting guidance (ASC 310-10-35-16), when based on current information and events, it is probable the Company will be unable to collect all amounts due from the borrower in accordance with the contractual terms of the loan. Impaired loans include nonperforming loans but also include loans modified in troubled debt restructurings where concessions have been granted to borrowers experiencing financial difficulties. The intent of concessions is to maximize collection.

Groups of loans with similar risk characteristics are collectively evaluated for impairment based on the group’s historical loss experience adjusted for changes in trends, conditions and other relevant factors that affect repayment of the loans. The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended December 31, 2020 and December 31, 2019:


	As of or For the Year Ended December 31, 2020
	Recorded Balance		Unpaid Principal Balance		Specific Allowance		Average Investment Impaired Loans		Interest Income Recognized
	(Dollars in thousands)
Loans without a specific valuation
Commercial	$	36,111	$	50,245	$	—	$	29,591	$	1,143
Energy	3,864		6,677		—		6,710		53
Commercial real estate	10,079		11,663		—		11,952		390
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	6,329		6,585		—		6,315		145
PPP	—		—		—		—		—


Consumer	244		244		—		250		—
Loans with a specific valuation
Commercial	8,567		8,567		1,115		8,637		249
Energy	22,181		27,460		3,370		23,823		542
Commercial real estate	34,239		34,239		5,048		27,980		1,035
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	—		—		—		—		—
PPP	—		—		—		—		—


Consumer	—		—		—		—		—


Total
Commercial	44,678		58,812		1,115		38,228		1,392
Energy	26,045		34,137		3,370		30,533		595
Commercial real estate	44,318		45,902		5,048		39,932		1,425
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	6,329		6,585		—		6,315		145
PPP	—		—		—		—		—


Consumer	244		244		—		250		—
	$	121,614	$	145,680	$	9,533			$	3,557


	As of or For the Year Ended December 31, 2019
	Recorded Balance		Unpaid Principal Balance		Specific Allowance		Average Investment Impaired Loans		Interest Income Recognized
	(Dollars in thousands)
Loans without a specific valuation
Commercial	$	35,846	$	35,846	$	—	$	44,646	$	1,549
Energy	2,864		2,864		—		4,381		199
Commercial real estate	9,464		9,464		—		12,907		669
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	2,139		2,139		—		2,140		14
PPP	—		—		—		—		—


Consumer	—		—		—		—		—
Loans with a specific valuation
Commercial	35,030		40,030		19,942		39,688		460
Energy	6,880		9,880		1,949		10,547		264
Commercial real estate	1,028		1,028		210		1,037		47
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	249		249		197		249		10
PPP	—		—		—		—		—


Consumer	—		—		—		—		—

Total
Commercial	70,876		75,876		19,942		84,334		2,009
Energy	9,744		12,744		1,949		14,928		463
Commercial real estate	10,492		10,492		210		13,944		716
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	2,388		2,388		197		2,389		24
PPP	—		—		—		—		—


Consumer	—		—		—		—		—
	$	93,500	$	101,500	$	22,298			$	3,212

Non-accrual Loans

Non-accrual loans are loans for which the Company does not record interest income. The accrual of interest on loans is discontinued at the time the loan is 90 days past due unless the credit is well secured and in process of collection. Past due status is based on contractual terms of the loan. In all cases, loans are placed on non-accrual or charged off at an earlier date, if collection of principal or interest is considered doubtful.

All interest accrued but not collected for loans that are placed on non-accrual or charged off are reversed against interest income. The interest on these loans is accounted for on the cash basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. The following table presents the Company’s non-accrual loans by loan category at December 31, 2020 and 2019:


	As of December 31,
	2020		2019
	(Dollars in thousands)
Commercial	$	26,691	$	32,130
Energy	25,927		4,540
Commercial real estate	19,088		1,063
Construction and land development	—		—
Residential and multifamily real estate	3,101		1,942
PPP	—		—


Consumer	244		—
Total nonaccrual loans	$	75,051	$	39,675

Troubled Debt Restructurings (“TDR”)

Restructured loans are those extended to borrowers who are experiencing financial difficulty and who have been granted a concession, excluding loan modifications as a result of the COVID-19 pandemic as permitted by the CARES Act. A TDR may also exist if the borrower transfers to the Bank: (i) receivables for third parties; (ii) real estate; (iii) other assets; or (iv) an equity position in the borrower to fully or partially satisfy a loan or the issuance or other granting of an equity position to the Bank to fully or partially satisfy a debt unless the equity position is granted pursuant to existing terms for converting the debt into an equity position.

Once an obligation has been restructured, the loan continues to be considered restructured until: (i) the obligation is paid in full or (ii) the borrower is in compliance with its modified terms for at least 12 consecutive months, the loan has a market rate, and the borrower could obtain similar terms from another bank. When a loan undergoes a TDR, the determination of whether the loan would remain on accrual status depends on several factors including: (i) the accrual status prior to the restructuring; (ii) the borrower’s demonstrated performance under the previous terms; and (iii) the Bank’s credit evaluation of the borrower’s capacity to continue to perform under the restructured terms.

Loans identified as TDRs are evaluated for impairment using the present value of the expected cash flows or the estimated fair value of the collateral if the loan is collateral dependent. The fair value is determined, when possible, by an appraisal of the property less estimated costs related to liquidation of the collateral. The appraisal amount may also be adjusted for current market conditions. Adjustments to reflect the present value of the expected cash flows or the estimated fair value of collateral dependent loans are a component in determining an appropriate allowance, and as such, may result in increases or decreases to the provision for loan losses in current and future earnings.

The table below presents loans restructured during the years ended December 31, 2020 and 2019, including the post-modification outstanding balance and the type of concession made:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Commercial
- Debt forgiveness	$	17,297	$	—
- Reduction of monthly payment	1,224		994
- Extension of maturity date	—		30,005
- Interest rate reduction	3,171		—
Energy
- Reduction of monthly payment	7,825		—
- Extension of maturity date	2,340		—
Commercial real estate
- Deferred payment	21,210		—
- Reduction of monthly payment	—		3,767






Total troubled debt restructurings	$	53,067	$	34,766

As of December 31, 2020, the modifications related to the troubled debt restructurings above did not impact the allowance for loan losses because the loans were previously impaired and evaluated on an individual basis or sufficient collateral was obtained. The restructured loans had a total specific valuation allowance of $4 million and $18 million as of December 31, 2020 and 2019, respectively.

For the year ended December 31, 2020 and 2019, the TDRs outstanding resulted in charge-offs of $26 million and $5 million and recoveries of $0 and $0, respectively. No TDRs modified within the past 12 months defaulted in 2020. During 2019, one commercial TDR modified within the past 12 months defaulted with an outstanding balance of $28 million.

The balance of restructured loans and the balance of those loans that are in default at any time during the past 12 months at December 31, 2020 and 2019 is provided below:


	For the Year Ended December 31,
	2020					2019
	Number of Loans	Outstanding Balance		Balance 90 Days Past Due at Any Time During Previous 12 Months(1)		Number of Loans	Outstanding Balance		Balance 90 Days Past Due at Any Time During Previous 12 Months(1)
	(Dollars in thousands)
Commercial	7	$	22,759	$	2,776	7	$	31,770	$	831
Energy	4	11,053		2,713		2	2,864		—
Commercial real estate	4	26,038		—		3	4,909		—
Construction and land development	—	—		—		—	—		—
Residential and multifamily real estate	2	3,245		—		—	—		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	17	$	63,095	$	5,489	12	$	39,543	$	831
(1) Default is considered to mean 90 days or more past due as to interest or principal.

During the year ended December 31, 2020, $1 million of interest income was recognized related to the $63 million in TDRs above. If the loans had been current in accordance with their original terms and had been outstanding throughout the period or since inception, the gross interest income that would have been recorded for the year ended December 31, 2020 would have been $2 million.

During the year ended December 31, 2019, $1 million of interest income was recognized related to the $40 million in TDRs above. If the loans had been current in accordance with their original terms and had been outstanding throughout the period or since inception, the gross interest income that would have been recorded for the year ended December 31, 2019 would have been $2 million. The majority of actual and potential interest income related to one loan relationship restructured late in the second quarter of 2019.

Premises and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Premises and Equipment

Major classifications of premises and equipment, stated at cost, are as follows:


	As of December 31,
	2020		2019

	(Dollars in thousands)
Land	$	7,384	$	7,384
Building and improvements	62,331		59,500
Construction in progress	95		524
Furniture and fixtures	14,073		12,851
Equipment	9,587		9,158
	93,470		89,417
Less: accumulated depreciation	22,961		19,207

Premises and equipment, net	$	70,509	$	70,210

Goodwill and Core Deposit Intangible

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Core Deposit Intangible

As a result of economic conditions from the COVID-19 pandemic and oil market volatility, the Company conducted a June 30, 2020 goodwill impairment test. The test required a goodwill impairment charge of $7 million, representing full impairment of goodwill. The primary causes of the goodwill impairment were economic conditions, volatility in the market capitalization of the Company, increased loan provision in light of the COVID-19 pandemic, and other changes in key variables driven by the uncertain macro-environment that when combined, resulted in the reporting unit’s fair value being less than the carrying value. The Tulsa, Oklahoma market represented the reporting unit and included all goodwill previously recorded.

The reporting unit’s fair value was determined using a combination of: (i) the capitalization of earnings method, an income approach, and (ii) the public company method, a market approach. The income approach estimated fair value by determining the cash flow in a single period, adjusted for growth that is adjusted by a capitalization rate. The market approach estimated fair value by averaging the price-to-book multiples from peer, public banks and adding a control premium.

Since the core deposit intangible (“CDI”) outstanding came from the same reporting unit, the Company conducted an impairment test of CDI as of June 30, 2020. The Company used an income approach to calculate a CDI fair market value. The results indicated the CDI was not impaired as of June 30, 2020. Following the June 30, 2020 impairment test, no additional qualitative factors arose requiring us to perform another CDI impairment test.

Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions, estimates, and market factors. Estimating the fair value of individual reporting units requires management to make assumptions and estimates regarding the Company’s future plans, as well as industry, economic, and regulatory conditions. These assumptions and estimates include estimated future cash flows, income tax rates, discount rates, growth rates, and other market factors.

The change in goodwill and core deposit intangible during the years ended December 31, 2020 and 2019 were:


	Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount
	(Dollars in thousands)
December 31, 2020
Goodwill	$	7,397	$	—	$	7,397	$	—
Core deposit intangible	1,014		806		—		208
Total goodwill and intangible assets	$	8,411	$	806	$	7,397	$	208

December 31, 2019
Goodwill	$	7,397	$	—	$	—	$	7,397
Core deposit intangible	1,014		717		—		297
Total goodwill and intangible assets	$	8,411	$	717	$	—	$	7,694

The remaining CDI balance will amortize over the next three years.

Derivatives and Hedging Activities

12 Months Ended

Dec. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging ActivitiesDerivatives not designated as hedges are not speculative and result from a service provided to clients. The Company executes interest rate swaps with customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third-party, such that the Company minimizes its net risk exposure resulting from such transactions. Interest rate derivatives associated with this program do not meet the strict hedge accounting requirements and changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings.

During 2019, the Company changed an input associated with the fair market value related to derivatives not designated as hedges. The model utilized to calculate the nonperformance risk, also known as the credit valuation adjustment (“CVA”), was adjusted from a default methodology to an internal review process by the Company. Management believes this change better aligns with the Company’s credit methodology and underwriting standards.

As a result of the change in methodology, the Company recorded an adjustment to increase swap fee income, net, by approximately $800 thousand, related to swaps closed as of June 30, 2019. If no defaults occur for derivatives not designated as hedges, the change in methodology will lower future swap fee income, net, by the same amount.

As of December 31, 2020 and 2019, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	December 31, 2020			December 31, 2019
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	56	$	515,567	56	$	380,050

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the balance sheet as of December 31, 2020 and 2019:


	Asset Derivatives			Liability Derivatives
	Balance Sheet	As of December 31,		Balance Sheet	As of December 31,
	Location	2020	2019	Location	2020		2019
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$24,094	$9,838	Other liabilities	$	24,454	$	9,907

The effect of the Company’s derivative financial instruments that are not designated as hedging instruments are reported on the statements of income as swap fee income, net. During 2020, the Company recorded a $290 thousand loss for CVA adjustments primarily related to one swap. The effect of the Company’s derivative financial instruments gain or loss are reported on the statements of cash flows within other assets and other liabilities.

Foreclosed Assets	12 Months Ended
Foreclosed Assets	Dec. 31, 2020
Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract]
Foreclosed Assets	Foreclosed AssetsForeclosed assets consisted of commercial use facilities and raw land at December 31, 2020. During 2020, the Company sold the industrial facilities that were foreclosed upon in 2019 and impaired the raw land foreclosed upon in 2019 . Upon acquisition, foreclosed assets are recorded at fair value less estimated selling costs at the date of foreclosure, establishing a new cost basis. They are subsequently carried at the lower of cost or fair value less estimated selling costs. Income and losses are reported on the Consolidated Statements of Income under the foreclosed assets, net section.

Interest-bearing Time Deposits	12 Months Ended
Interest-bearing Time Deposits	Dec. 31, 2020
Maturities of Time Deposits [Abstract]
Interest-bearing Time Deposits	Interest-bearing Time Deposits Interest-bearing time deposits in denominations of $250 thousand or more were $524 million and $692 million as of December 31, 2020 and 2019, respectively. The Company acquires brokered deposits in the normal course of business. At December 31, 2020 and 2019, brokered deposits of approximately $188 million and $392 million, respectively, were included in the Company’s time deposit balance. Reciprocal deposits, which includes The Certificate of Deposit Account Registry Services (“CDARS”) discussed below, are treated as core deposits instead of brokered deposits and are not included in the above amounts. The Company is a member of CDARS that allows depositors to receive FDIC insurance on amounts greater than the FDIC insurance limit, which is currently $250,000. CDARS allows institutions to break large deposits into smaller amounts and place them in a network of other CDARS institutions to ensure full FDIC insurance is gained on the entire deposit. CDARS totaled approximately $75 million and $42 million as of December 31, 2020 and 2019, respectively. The scheduled maturities for time deposits are provided in Note 10: Borrowing Arrangements below.

Borrowing Arrangements

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Borrowing Arrangements

The following table summarizes borrowings at December 31, 2020 and 2019:


	As of and For the Year Ended December 31,
	2020					2019
	(Dollars in thousands)
	Balance		Rate(6)	Maximum Balance at Any End of Month		Balance		Rate(6)	Maximum Balance at Any End of Month
Repurchase agreements(1)	$	2,306	0.15%	$	57,259	$	14,921	1.00%	$	72,048
Federal funds purchased(2)	—		NA	30,000		—		NA	25,000
FHLB advances(3)	293,100		1.78	450,659		358,743		1.84	358,743
FHLB line of credit(3)	—		NA	20,000		—		NA	30,000
Federal Reserve Borrowing(4)	—		NA	15,000		—		NA	—

Trust preferred security(5)	963		1.96%	$	963	921		3.63%	$	921
Total borrowings	$	296,369				$	374,585

(1) Repurchase agreements consist of Bank obligations to other parties payable on demand and generally have one day maturities. The obligations are collateralized by securities of U.S. government sponsored enterprises and mortgage-backed securities and such collateral is held by a third-party custodian. The year-to-date average daily balance was $32 million and $44 million for the years ended December 31, 2020 and 2019, respectively. The securities, mortgage-backed government sponsored residential securities, pledged for customer repurchase agreements were $6 million and $37 million at December 31, 2020 and 2019, respectively.

(2) Federal funds purchased include short-term funds that are borrowed from another bank. The Bank is part of a third-party service that allows us to borrow amounts from another bank if the bank has approved us for credit. Federal funds purchased generally have one day maturities.

(3) FHLB advances and line of credit are collateralized by a blanket floating lien on certain loans, as well as, unrestricted securities. FHLB advances are at a fixed rate, ranging from 0.37% to 2.88% and are subject to restrictions or penalties in the event of prepayment. The FHLB line of credit has a variable interest rate that reprices daily based on FHLB’s cost of funds and matures on May 14, 2021.

(4) Federal Reserve borrowings are collateralized by certain available-for-sale securities and certain loans. The Federal Reserve discount window advance rates are variable and based on an established discount rate determined by the Reserve Banks’ board of directors, subject to review and determination by the Board of Governors. The borrowings typically mature in 90 days.

(5) On June 30, 2010, the Company assumed a liability with a fair value of $1 million related to the assumption of trust preferred securities issued by Leawood Bancshares Statutory Trust I for $4 million on September 30, 2005. In 2012, the Company settled litigation related to the trust preferred securities which decreased the principal balance by $1.5 million and the recorded balance by approximately $400 thousand. The difference between the recorded amount and the contract value of $2.5 million is being accreted to the maturity date in 2035. Distributions will be paid on each security at a variable annual rate of interest, equal to LIBOR, plus 1.74%.

(6) Represents the year-end weighted average interest rate.

The following table summarizes the Company’s other borrowing capacities at December 31, 2020 and 2019:


	As of December 31,
	2020		2019
	(Dollars in thousands)
FHLB borrowing capacity relating to loans	$	518,191	$	490,218
FHLB borrowing capacity relating to securities	—		—
Total FHLB borrowing capacity	$	518,191	$	490,218
Unused Federal Reserve borrowing capacity	$	435,805	$	287,857

The scheduled maturities, excluding interest, of the Company’s borrowings at December 31, 2020 were as follows:


	As of December 31, 2020
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	867,927	$	114,963	$	44,392	$	15,501	$	699	$	—	$	1,043,482
Fed funds purchased & repurchase agreements	2,306		—		—		—		—		—		2,306
FHLB borrowings	16,500		21,500		35,000		—		5,100		215,000		293,100
Trust preferred securities(1)	—		—		—		—		—		963		963
Total	$	886,733	$	136,463	$	79,392	$	15,501	$	5,799	$	215,963	$	1,339,851

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

Income Taxes

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

The provision for income taxes includes these components:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Taxes currently payable (receivable)	$	7,970	$	7,624	$	(2,155)



Deferred income tax liability	(5,257)		(3,486)		(239)
Income tax expense (benefit)	$	2,713	$	4,138	$	(2,394)

An income tax reconciliation at the statutory rate to the Company’s actual income tax expense (benefit) is shown below:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	3,216	$	6,848	$	3,611
Increase (decrease) resulting from
Tax-exempt income	(3,109)		(2,913)		(3,508)
Nondeductible expenses	194		356		380
State tax credit	—		(1,361)		(3,129)
State income tax expense (benefit)	679		1,288		687
Equity-based compensation	179		(88)		(445)

Goodwill impairment	1,553		—		—
Other adjustments	1		8		10
Actual tax expense (benefit)	$	2,713	$	4,138	$	(2,394)

During 2019, the Company received a $2 million gross state tax credit that will offset certain state income taxes. As a result, the Company recorded a $2 million tax benefit, offset by $362 thousand in federal tax expense. This resulted in a $1 million deferred tax asset in 2019. During 2018, the Company received a $3 million state tax credit that will offset certain state income taxes. The Company had a $2 million deferred tax asset as of December 31, 2020 due to the previously mentioned state tax credits. The deferred tax asset will decrease as the Company produces certain state taxable income and expires on December 31, 2034.

The tax effects of temporary differences related to deferred taxes shown on the consolidated balance sheets within other assets are presented below:


	As of December 31,
	December 31, 2020		December 31, 2019
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	18,124	$	13,928
Lease incentive	564		294
Impairment of available-for-sale securities	—		493

Loan fees	3,178		2,317

Accrued expenses	2,128		2,131
Deferred compensation	2,474		2,444

State tax credit	2,621		3,287
Other	946		420
Total deferred tax asset	30,035		25,314
Deferred tax liability

Net unrealized gain on securities available-for-sale	(9,531)		(5,339)
FHLB stock basis	(1,209)		(996)
Premises and equipment	(2,881)		(3,620)
Other	(1,601)		(1,577)
Total deferred tax liability	(15,222)		(11,532)
Net deferred tax asset	$	14,813	$	13,782

The Company has approximately $1 million of federal net operating loss carry-forwards, which expire after 2028. The net operating loss is subject to annual usage limitations of $180 thousand per year, but may include unused amounts from prior years. The Company fully expects to utilize the entire net operating loss carry-forwards before they expire.

State Tax Exam

During 2019, the Company received notice of a state tax audit for tax years ended December 31, 2016, 2017 and 2018. The resolution of findings did not have a material adverse effect on the consolidated financial position, result of operations and cash flows of the Company.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Changes in Accumulated Other Comprehensive Income

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Changes in Accumulated Other Comprehensive Income

Amounts reclassified from accumulated other comprehensive income (“AOCI”) and the affected line items in the consolidated statements of income were as follows:


	For the Year Ended December 31,						Affected Line Item in the
	2020		2019		2018		Statements of Income
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	1,704	$	987	$	538	Gain on sale of available-for-sale debt securities

Less: tax effect	415		242		132		Income tax expense
Net reclassified amount	$	1,289	$	745	$	406

Stock WarrantsThe Company had 113,500 and 113,500 outstanding, fully vested warrants to purchase common stock at a strike price of $5.00 per share as of December 31, 2020 and 2019, respectively. The 113,500 warrants were modified during 2018 to extend the expiration date from June 30, 2019 to April 26, 2023 in accordance with the Chairman Emeritus Agreement. The strike price continues to be $5.00 per share. During the period ended December 31, 2019, 10,000 warrants were forfeited.

Regulatory Matters

12 Months Ended

Dec. 31, 2020

Banking Regulation, Risk-Based Information [Abstract]

Regulatory Matters

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. The Basel III Capital Rules (“Basel III”) were jointly published by three federal banking regulatory agencies. Basel III defines the components of capital, risk weighting and other issues affecting the numerator and denominator in regulatory capital ratios.

Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. The actions may include dividend payment restrictions, require the adoption of remedial measures to increase capital, terminate FDIC deposit insurance, and mandate the appointment of a conservator or receiver in severe cases. Under capital adequacy guidelines and the regulatory framework

for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance-sheet items as calculated under U.S. GAAP, regulatory reporting requirements and regulatory capital standards. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Furthermore, the Company’s regulators could require adjustments to regulatory capital not reflected in these consolidated financial statements.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and tier I capital (as defined) to risk-weighted assets (as defined), common equity tier I capital (as defined) to risk-weighted assets (as defined), and of tier I capital (as defined) to average assets (as defined). Management believes, as of December 31, 2020, the Company and the Bank met all capital adequacy requirements to which they are subject.

As of December 31, 2020, the most recent notification from the applicable regulatory agencies categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total risk-based, tier I risk-based, common equity tier I risk-based and tier I leverage ratios as set forth in the table below. There are no conditions or events since that notification that management believes have changed the Bank’s category. The Company’s and the Bank’s actual capital amounts and ratios as of December 31, 2020 and 2019 are presented in the following table:


	Actual				Minimum Capital Required - Basel III			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
December 31, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	656,806	13.1	%		$	527,486	10.5	%	N/A		N/A
Bank	611,533		12.2			527,217		10.5		$	502,111	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	593,865		11.8			427,012		8.5		N/A		N/A
Bank	548,615		10.9			426,794		8.5		401,689		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	592,902		11.8			351,657		7.0		N/A		N/A
Bank	548,615		10.9			351,478		7.0		326,372		6.5
Tier I Capital to Average Assets
Consolidated	593,865		10.8			219,550		4.0		N/A		N/A
Bank	$	548,615	10.0	%		$	219,441	4.0	%	$	274,302	5.0	%
December 31, 2019
Total Capital to Risk-Weighted Assets
Consolidated	$	633,228	13.4	%		$	495,095	10.5	%	N/A		N/A
Bank	581,600		12.3			494,954		10.5		$	471,385	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	576,332		12.2			400,791		8.5		N/A		N/A
Bank	524,704		11.1			400,677		8.5		377,108		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	575,411		12.2			330,063		7.0		N/A		N/A
Bank	524,704		11.1			329,970		7.0		306,400		6.5
Tier I Capital to Average Assets
Consolidated	576,332		12.1			191,093		4.0		N/A		N/A
Bank	$	524,704	11.0	%		$	191,170	4.0	%	$	238,963	5.0	%

The above minimum capital requirements include the capital conservation buffer required to avoid limitations on capital distributions, including dividend payments and certain discretionary bonus payments to executive officers. The capital conservation buffer was 2.5% at December 31, 2020 and 2019.

- Definition

The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union.

+ References + Details

Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2020
Retirement Benefits [Abstract]
Employee Benefit Plan	Employee Benefit PlanThe Company has a retirement savings 401(k) plan covering substantially all employees. Employees may contribute a portion of their compensation to the plan. During 2020, 2019 and 2018, Company contributions to the plan were 100% on the first 1% of employees’ salary deferral amounts plus 50% of employees’ salary deferral amounts over 1%, but capped at 6% of employees’ compensation. Additional contributions are discretionary and are determined annually by the Board of Directors. Company contributions to the plan were $1 million, $1 million and $891 thousand for 2020, 2019 and 2018, respectively.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section S99
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
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+ Details

Revenue from Contracts with Customers

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

The Company adopted ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” and its related amendments as of January 1, 2019 using the modified retrospective approach. The implementation had no material impact on the measurement or recognition of revenue of either current or prior periods.

The categories are selected based on the nature, amount, timing, and uncertainty of revenue and cash flows. The following presents descriptions of revenue categories within the scope of ASU 2014-09 (ASC 606):

Service charges and fees (rebates) on customer accounts - This segment consists of monthly fees for the services rendered on customer deposit accounts, including maintenance charges, overdraft fees, and processing fees. The monthly fee structures are typically based on type of account, volume, and activity. The customer is typically billed monthly and pays the bill from their deposit account. The Company satisfies the performance obligation related to providing depository accounts monthly as transactions are processed and deposit service charge revenue is recorded.

ATM and credit card interchange income - This segment consists of fees charged for use of the Company’s ATMs, as well as, an interchange fee with credit card and debit card service providers. ATM fees and interchange fees are based on the number of transactions, as well as, the underlying agreements. Customers are typically billed monthly. The Company satisfies the performance obligation related to ATM and interchange fees monthly as transactions are processed and revenue is recorded.

International fees - This segment consists of fees earned from foreign exchange transactions and preparation of international documentation. International fees are based on underlying agreements that describe the Company’s performance obligation and the related fee. Customers are typically billed and cash is received once the service or transaction is complete. The Company satisfies the performance obligation related to international fees monthly as transactions are processed and revenue is recorded.

Other fees - This segment consists of numerous, smaller fees such as wire transfer fees, check cashing fees, and check printing fees. Other fees are typically billed to customers on a monthly basis. Performance obligations for other fees are satisfied at the time that the service is rendered.

The following table disaggregates the noninterest income subject to ASU 2014-09 by category:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Noninterest income subject to ASU 2014-09
Service charges and fees (rebates) on customer accounts	$	2,803	$	604
ATM and credit card interchange income	4,379		1,785
International fees	1,091		716
Other fees	87		122
Total noninterest income from contracts with customers	8,360		3,227
Noninterest income not subject to ASU 2014-09
Other noninterest income	3,373		5,480
Total noninterest income	$	11,733	$	8,707

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 13
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-Paragraph 15
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
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-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Stock-Based Compensation

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based CompensationThe Company issues stock-based compensation in the form of non-vested restricted stock and stock appreciation rights under the 2018 Omnibus Equity Incentive Plan (“Omnibus Plan”). In addition, the Company has an Employee Stock Purchase Plan (“ESPP”) that was suspended effective April 1, 2019 and reinstituted effective July 1, 2020. The Omnibus Plan will expire on the tenth anniversary of its effective date. The aggregate number of shares authorized for future issuance under the Omnibus Plan is 2,083,353 shares as of December 31, 2020. The Company will issue new common shares upon exercise or vesting of stock-based awards.

During 2018, the Company announced a 2-for-1 stock split effected in the form of a dividend. The stock split was effective on December 21, 2018. Except as described herein, stock-based awards were retroactively adjusted for all periods presented to reflect the change in capital structure.

During 2018, awards issued under the Stock Settled Appreciation Right (“SSAR”) Plan, Equity Incentive Plan, Employee Equity Incentive Plan and New Market Founder Plan were assumed under the Omnibus Plan as agreed upon with participants, impacting all participants who agreed to the assumption. The awards are called “Legacy Awards.” Material terms and conditions of Legacy Awards remain unchanged; therefore, no modification to their fair market value was required. Going forward, all awards will be issued under the Omnibus Plan.

During 2018, several events, including the ones mentioned above, impacted stock-based compensation. A table showing the events and the impact to stock-based compensation is provided at the end of Note 16.

The table below summarizes stock-based compensation for the years ended December 31, 2020, 2019, and 2018:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Stock appreciation rights	$	994	$	1,243	$	1,457
Performance-based stock awards	249		271		578
Restricted stock awards	3,078		3,174		2,404

Employee stock purchase plan	42		36		165
Total stock-based compensation	$	4,363	$	4,724	$	4,604

Stock Settled Appreciation Rights

SSARs are granted based on the fair market value of the Company’s common stock. SSARs typically vest in equal amounts over a seven-year period, commencing on the first anniversary of the effective date of grant and have fifteen-year contractual terms for Legacy Awards and ten-year contractual terms for all other SSARs. Legacy Awards include retirement eligibility upon the participant’s 65th birthday, five years of participation, and after one year holding the grant. The exercise of a SSAR entitles the participant to the excess of the exercise price over the grant price for each SSAR. Exercise price is based on the fair market value of the Company’s common shares.

During 2018, the Company issued 100,000 SSARs with a strike price of $28.50 to a nonemployee. The SSARs vest in equal amounts over a five-year period, commencing on the first anniversary of the effective date of grant and have a five-year contractual term. The Company determined that the award did not require substantive service, which required the award to be fully expensed at the grant date. Because the award is to a nonemployee, the fair market value for this award was adjusted quarterly until the Company adopted ASU 2018-07 in the first quarter of 2019, which set the fair market value for this award. Additional information on ASU 2018-07 can be found in Note 1: Nature of Operations and Summary of Significant Accounting Policies within the Notes to the Consolidated Financial Statements. The SSAR was not adjusted with respect to the 2-for-1 stock split in accordance with the underlying agreements with the nonemployee and the applicable plan, which did not provide for adjustment.

During 2018, the Company accelerated the vesting of 107,482 SSARs in accordance with the Chairman Emeritus Agreement. The acceleration resulted in $430 thousand in additional expense due to modification accounting. Both the award to the nonemployee and modification to existing SSARs are included in the tables below.

During 2018, 240,000 SSARs were granted that vest in equal amounts over a three-year period, commencing on the first anniversary of the effective date of grant and have fifteen-year contractual terms.

The calculated value of each share award is estimated at the grant date using a Black-Scholes option valuation model. Expected volatility is primarily based on an internal model that calculates the historical volatility of the Company’s stock since the IPO and several peer group banks’ weekly average stock prices before the IPO over the expected term. The expected term of stock granted represents the period of time that shares are expected to be outstanding. The risk-free rate for periods within the contractual life of the share award is based on the U.S. Treasury yield curve.

For the expected term, the Company uses the simplified method described in SAB Topic 14.D.2. This method uses an expected term based on the midpoint between the vesting date and the end of the contractual term. This method is used for the majority of SSARs, because the Company does not have a significant pool of SSARs that have been exercised. For some SSARs that are granted to participants who will be retirement eligible during the term of the award, a separate analysis is performed that focuses more on expected retirement date.

The following table provides the range of assumptions used in the Black-Scholes valuation model, the weighted average grant date fair value, and information related to SSARs exercised for the following years, as well as, the remaining compensation cost to be recognized and period over which the amount will be recognized as of the dates indicated:


	For the Year Ended December 31,
	2020	2019(1)	2018
	(Dollars in thousands, except per share data)
Assumptions:
Expected volatility	20.34%	24.63% - 33.63%	25.69% - 42.99%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	6.00	4.24 - 7.00	4.00 - 9.50
Risk-free rate	0.38%	1.45% - 2.55%	2.50% - 2.94%
Weighted average grant date fair value per share	$1.93	$5.43	$4.68
Aggregate intrinsic value of SSARs exercised	$571	$493	$2,214
Total fair value of SSARs vested during the year	$1,245	$1,171	$1,710
Unrecognized compensation information:
Unrecognized compensation cost	$1,737	$2,904	$3,730
Period remaining (in years)	3.3	3.9	3.9
(1) The Black-Scholes inputs include a revaluation of a nonemployee SSAR upon adoption of ASU 2018-07, as well as, SSARs granted during the period.

A summary of SSAR activity during and as of December 31, 2020 is presented below:


	Stock Settled Appreciation Rights
	Units	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term
Outstanding, January 1, 2020	1,772,652	$	10.31	9.20
Granted	25,907	9.35		9.42
Exercised	(140,354)	5.94
Forfeited or expired	(68,530)	9.14
Outstanding, December 31, 2020	1,589,675	$	10.73	8.45
Exercisable, December 31, 2020	991,130	$	9.59	8.14

Performance-Based Stock Awards (“PBSAs”)

The Company awards PBSAs to key officers of the Company. The stock settled awards are typically granted annually as determined by the Compensation Committee. The performance-based shares typically cliff-vest at the end of three years based on attainment of certain performance metrics developed by the Compensation Committee. The ultimate number of shares issuable under each performance award is the product of the award target and the award payout percentage given the level of achievement. The award payout percentages by level of achievement range between 0% of target and 150% of target.

During 2016, the Company awarded PBSAs to New Market Founders. A New Market Founder is a nonemployee, adviser chosen in a selected market to facilitate expansion of banking relationships. During 2016, 110,900 PBSAs were granted and cliff-vest on December 31, 2021. No compensation expense was recognized as part of this plan during 2018. The Company adopted ASU 2018-07 in the first quarter of 2019, which set the fair market value for this award. The Company determined that no substantial service existed for this award, resulting in a cumulative effect adjustment of approximately $2 million to retained earnings. Increases to the expected or actual award payout percentages from the date ASU 2018-07 was adopted will be immediately expensed going forward. Reductions to the expected or actual award payout percentages from the date ASU 2018-07 was adopted will be adjusted through retained earnings.

Issuance of the above New Market Founder PBSAs is based upon four equally weighted market measures: total assets, total loans, return on assets and classified assets to capital as of December 31, 2021. The ultimate number of shares issuable under each performance award is the product of the award target and the award payout percentage given the level of achievement. The award payout percentages by level of achievement range between 0% of target to 150% of target. Achievement between 50% of target (“threshold”) and 150% (“stretch”) will result in an award payout percentage determined based on straight-line interpolation between the percentiles. A maximum of 248,841 units could be issued.

The following table summarizes the status of and changes in the performance-based awards:


	Performance-Based Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Unvested, January 1, 2020	192,248	$	9.88
Granted	41,283	13.55
Vested	0	0.00
Forfeited	(1,900)	13.55
Unvested, December 31, 2020	231,631	$	10.51

Unrecognized stock-based compensation expense related to the performance grants issued through December 31, 2020 was $488 thousand and is expected to be recognized over 1.7 years.

Restricted Stock Units (“RSUs”) and Restricted Stock Awards (“RSAs”)

The Company issues RSUs and RSAs to provide additional incentives to key officers, employees, and nonemployee directors. Awards are typically granted annually as determined by the Compensation Committee. The service based RSUs typically cliff-vest at the end of three years for Legacy Awards and vest in equal amounts over three years for all other RSUs. The service based RSAs typically cliff-vest after one year.

During 2018, 60,000 Legacy RSUs were granted with a grant date fair market value of $14.25 per unit and vests in equal amounts over a three-year period, commencing on the first anniversary of the effective date of grant.

During 2018, the Company accelerated the vesting of 74,280 RSUs in accordance with the Chairman Emeritus Agreement. The acceleration resulted in $694 thousand to be immediately expensed instead of over the initial expected service period.

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Unvested, January 1, 2020	340,780	$	15.35
Granted	293,297	11.84
Vested	(231,845)	15.37
Forfeited	(33,015)	14.62
Unvested, December 31, 2020	369,217	$	12.61

Unrecognized stock-based compensation expense related to restricted stock grants issued through December 31, 2020 was $3 million and is expected to be recognized over 1.7 years.

Employee Stock Purchase Plan

The Company has an ESPP whereby employees are eligible for the plan when they have met certain requirements concerning period of credited service and minimum hours worked. The calculated value of each unit award is estimated at the start of the offering period using a Black-Scholes option valuation model that used the assumptions noted in the following table:


	For the Year Ended December 31,
	2020	2019	2018

Assumptions:
Expected volatility	22.50%	7.60%	7.60%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	0.50	1	1
Risk-free rate	0.17%	2.09%	2.09%

2018 Events

Due to the number of events that occurred in 2018, a table of events and the impact to equity based compensation is provided below followed by additional detail under the table:

Change

Change in

Number of

Event

Cumulative

Awards Issued /

Additional

Date

Type

Expense

Exercised

Notes

(Dollars in thousands)

January 2018

EIP Modification:

from performance awards to time-vested awards

1,294

None

Awards were exchanged at “Target” representing 100% of the original award. 282,192 PBSAs were forfeited and replaced with 282,192 RSUs.

May

2018

Chairman Emeritus Agreement:

SSAR and RSU vesting was accelerated

1,124

201,334 SSARs were exercised and 74,280 RSUs vested

101,178 common shares were issued.

October 2018

New Plan Approved:

Existing awards were canceled and regranted under the Omnibus Plan as agreed with certain participants.

–SSARs

None

1,595,430 SSARs were forfeited and regranted under the Omnibus Plan

–RSUs

None

298,254 RSUs were forfeited and regranted under the Omnibus Plan

–PBSAs

None

159,384 PBSAs were forfeited and regranted under the Omnibus Plan

December 2018

Stock Split:

2-for-1 Stock Split occurred

None

All awards, excluding 100,000 SSARs were split

All awards, other than the noted SSARs, were retroactively adjusted for all periods presented to reflect the 2-for-1 split

In January 2018, the Company modified the Equity Incentive Plan to allow the Compensation Committee to award performance-based awards or service-based awards. The Compensation Committee modified awards granted in 2016 and 2017 from performance-based to service-based awards. The modification resulted in a $1 million increase in expense that will be recognized over the remaining service period. A total of 25 participants were impacted by this modification. During 2018, $989 thousand was recognized, including $61 thousand in forfeiture credits. The remaining $216 thousand was recognized in 2019.

In May 2018, the Company’s former Chief Executive Officer became the Company’s Chairman Emeritus. As part of this transition, restricted stock units issued under the Equity Incentive Plan in 2016, 2017, and 2018 were fully vested. The modification resulted in $694 thousand of additional expense. In addition, all SSARs awarded under the Stock Appreciation Rights Plan were considered fully-vested. This modification resulted in $430 thousand of additional expense. All awards were converted to common stock and 101,178 common shares were issued. The Chairman Emeritus Agreement also granted 100,000 SSARs that will vest equally over five years.

In October 2018, the Omnibus Plan was approved. The Omnibus Plan allows for several types of grants including: (i) stock options; (ii) SARs; (iii) RSAs; (iv) RSUs; and (v) PBSAs. Awards issued under the previous plans were assumed under the Omnibus Plan, as agreed upon with participants, impacting all participants who agreed to the assumption. Material terms and conditions of Legacy Awards remain unchanged; therefore, no modification to their fair market value was required.

Stock Warrants

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Stock Warrants

Changes in Accumulated Other Comprehensive Income

Amounts reclassified from accumulated other comprehensive income (“AOCI”) and the affected line items in the consolidated statements of income were as follows:


	For the Year Ended December 31,						Affected Line Item in the
	2020		2019		2018		Statements of Income
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	1,704	$	987	$	538	Gain on sale of available-for-sale debt securities

Less: tax effect	415		242		132		Income tax expense
Net reclassified amount	$	1,289	$	745	$	406

Operating Leases

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Operating Leases

During 2020, the Bank began occupying office space in Kansas City, Missouri and Frisco, Texas. The Kansas City, non-cancellable lease has a term of 15 years with four, five-year renewal options. The Bank received a construction allowance of $1 million. The Frisco, non-cancellable lease has a term of 86 months with two, five-year renewal options. The Bank received a construction allowance of $212 thousand.

The Company has various, non-cancellable operating leases for office space in its respective markets. Three operating leases included tenant improvement allowances. In accordance with ASC 840, the Company is amortizing the benefit through occupancy expense over the expected life of the lease. Rent expense for the periods presented was as follows:


	Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Rental Expense	$	2,871	$	2,526	$	3,323

Future minimum lease payments under operating leases were as follows:


	(Dollars in thousands)
2021	$	2,837
2022	2,910
2023	2,956
2024	2,621
2025	2,627
Thereafter	$	16,716

Disclosure about Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Disclosure about Fair Value of Financial Instruments

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements must maximize the use of observable inputs and minimize the use of unobservable inputs. There is a hierarchy of three levels of inputs that may be used to measure fair value:


Level 1						Quoted prices in active markets for identical assets or liabilities
Level 2						Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3						Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Recurring Measurements

The following list presents the assets and liabilities recognized in the accompanying consolidated Balance Sheets measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall at December 31, 2020 and 2019:

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-sale securities
and equity security

Where quoted market prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. If quoted market prices are not available, then fair values are estimated by using quoted prices of securities with similar characteristics or independent asset pricing services and pricing models, the inputs of which are market-based or independently sourced market parameters, including, but not limited to, yield curves, interest rates, volatilities, prepayments, defaults, cumulative loss projections and cash flows.

Level 2

Note 3 : Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 7: Derivatives

Nonrecurring Measurements

The following tables present the fair value measurement of assets measured at fair value on a nonrecurring basis and the level within the fair value hierarchy in which the fair value measurements fall:


			December 31, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	55,454	$	—	$	—	$	55,454

Foreclosed assets held-for-sale	$	2,347	$	—	$	—	$	2,347


			December 31, 2019
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	20,889	$	—	$	—	$	20,889

Following is a description of the valuation methodologies and inputs used for assets measured at fair value on a nonrecurring basis and recognized in the accompanying consolidated balance sheets, as well as the general classification of such assets pursuant to the valuation hierarchy. For assets classified within Level 3 of the fair value hierarchy, the process used to develop the reported fair value is described below.

Collateral-Dependent Impaired Loans, Net of ALLL

The estimated fair value of collateral-dependent impaired loans is based on the appraised fair value of the collateral, less estimated cost to sell. Collateral dependent impaired loans are classified within Level 3 of the fair value hierarchy. The Company considers the appraisal or evaluation as the starting point for determining fair value and then considers other factors and events in the environment that may affect the fair value. Appraisals of the collateral underlying collateral dependent loans are obtained when the loan is determined to be collateral-dependent and subsequently as deemed necessary by the Chief Credit Officer.

Appraisals are reviewed for accuracy and consistency by the Chief Credit Officer. Appraisers are selected from the list of approved appraisers maintained by management. The appraised values are reduced by discounts to consider lack of marketability and estimated cost to sell if repayment or satisfaction of the loan is dependent on the sale of the collateral. These discounts and estimates are developed by the Chief Credit Officer by comparison to historical results.

Foreclosed Assets Held-for-Sale

The fair value of foreclosed assets held-for-sale is based on the appraised fair value of the collateral, less estimated cost to sell.

Unobservable (Level 3) Inputs

$29 million of collateral dependent impaired loans had appraisals that were more than one year old at December 31, 2020. The Company increased the marketability discount to compensate for the aged appraisals. Increased discounts on other loans resulted from the COVID-19 pandemic’s impact. The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at December 31, 2020 and 2019:

As of December 31, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral dependent impaired loans

55,454

Market comparable properties

Marketability discount

1% - 98%

(24%)

Foreclosed assets held-for-sale

2,347

Market comparable properties

Marketability discount

7% - 10%

As of December 31, 2019

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral dependent impaired loans

20,889

Market comparable properties

Marketability discount

10% - 15%

(12%)

See Note 16: Stock-Based Compensation for quantitative information about unobservable inputs used in the fair value measurement of stock appreciation rights.

The following tables present the estimated fair values of the Company’s financial instruments at December 31, 2020 and 2019:


	December 31, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	408,810	$	408,810	$	—	$	—	$	408,810
Available-for-sale securities	654,588		—		654,588		—		654,588
Loans, net of allowance for loan losses	4,366,602		—		—		4,351,970		4,351,970
Restricted equity securities	15,543		—		—		15,543		15,543
Interest receivable	17,236		—		17,236		—		17,236
Equity securities	13,436		—		2,247		11,189		13,436
Derivative assets	24,094		—		24,094		—		24,094
Total	$	5,500,309	$	408,810	$	698,165	$	4,378,702	$	5,485,677
Financial Liabilities
Deposits	$	4,694,740	$	718,459	$	—	$	4,015,792	$	4,734,251
Federal funds purchased and repurchase agreements	2,306		—		2,306		—		2,306
Federal Home Loan Bank advances	293,100		—		309,020		—		309,020
Other borrowings	963		—		2,024		—		2,024
Interest payable	2,163		—		2,163		—		2,163
Derivative liabilities	24,454		—		24,454		—		24,454
Total	$	5,017,726	$	718,459	$	339,967	$	4,015,792	$	5,074,218


	December 31, 2019
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	187,320	$	187,320	$	—	$	—	$	187,320
Available-for-sale securities	739,473		—		739,473		—		739,473
Loans, net of allowance for loan losses	3,795,348		—		—		3,810,818		3,810,818
Restricted equity securities	17,278		—		—		17,278		17,278
Interest receivable	15,716		—		15,716		—		15,716
Equity security	2,161		—		2,161		—		2,161
Derivative assets	9,838		—		9,838		—		9,838
	$	4,767,134	$	187,320	$	767,188	$	3,828,096	$	4,782,604
Financial Liabilities
Deposits	$	3,923,759	$	521,826	$	—	$	3,407,012	$	3,928,838
Federal funds purchased and repurchase agreements	14,921		—		14,921		—		14,921
Federal Home Loan Bank advances	358,743		—		357,859		—		357,859
Other borrowings	921		—		2,147		—		2,147
Interest payable	4,584		—		4,584		—		4,584
Derivative liabilities	9,907		—		9,907		—		9,907
	$	4,312,835	$	521,826	$	389,418	$	3,407,012	$	4,318,256

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Significant Estimates and Concentrations	12 Months Ended
Significant Estimates and Concentrations	Dec. 31, 2020
Risks and Uncertainties [Abstract]
Significant Estimates and Concentrations	Significant Estimates and Concentrations GAAP requires disclosure of certain significant estimates and current vulnerabilities due to certain concentrations. Estimates related to the allowance for loan losses are reflected in Note 4: Loans and Allowance for Loan Losses. Current vulnerabilities due to certain concentrations of credit risk are discussed in Note 21: Commitments and Credit Risk. Credit risk related to derivatives is reflected in the Note 7: Derivatives and Hedging Activities. Estimates related to equity awards are reflected in Note 16: Stock-Based Compensation. Other significant estimates and concentrations not discussed in those footnotes include: Investments The Company invests in various investment securities. Investment securities are exposed to various risks such as interest rate, market and credit risk. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such change could materially affect the amounts reported in the accompanying consolidated balance sheets. General Litigation The Company is subject to claims and lawsuits that arise primarily in the ordinary course of business. It is the opinion of management that the disposition or ultimate resolution of such claims and lawsuits will not have a material adverse effect on the consolidated financial position, results of operations and cash flows of the Company.

Commitments and Credit Risk

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Credit Risk

The Company had the following commitments at December 31, 2020 and 2019:


	December 31, 2020		December 31, 2019
	(Dollars in thousands)
Commitments to originate loans	$	99,596	$	134,652
Standby letters of credit	48,607		39,035
Lines of credit	1,423,038		1,351,873
Future lease commitments	—		20,935
Total	$	1,571,241	$	1,546,495

Commitments to Originate Loans

Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case by case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate.

Standby Letters of Credit

Standby letters of credit are irrevocable conditional commitments issued by the Company to guarantee the performance of a customer to a third-party. Financial standby letters of credit are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. Performance standby letters of credit are issued to guarantee performance of certain customers under nonfinancial contractual obligations. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loans to customers. Fees for letters of credit are initially recorded by the Company as deferred revenue and are included in earnings at the termination of the respective agreements.

Should the Company be obligated to perform under the standby letters of credit, the Company may seek recourse from the customer for reimbursement of amounts paid.

Lines of Credit

Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Since a portion of the line may expire without being drawn upon, the total unused lines do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case by case basis. The amount of collateral obtained, if deemed necessary, is based on management’s credit evaluation of the counterparty.

Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, commercial real estate and residential real estate. Management uses the same credit policies in granting lines of credit as it does for on-balance sheet instruments.

Stock Offerings and Repurchases	12 Months Ended
Stock Offerings and Repurchases	Dec. 31, 2020
Equity [Abstract]
Stocks Offerings and Repurchases	Stock Offerings and Repurchases In October 2020, the Company announced a $20 million program to repurchase CrossFirst’s common stock. The repurchased shares are held in the treasury stock account until sold or retired and will be accounted for on a first-in first-out method. The Company completed its IPO on August 19, 2019 in which it issued and sold 6,594,362 common shares including 844,362 shares pursuant to the underwriters’ partial exercise of their over-allotment option. The common shares were sold at an initial public offering price of $14.50 per share. After deducting the underwriting discounts and offering expenses, the Company received total net proceeds of $87 million. The Company redeemed all, 1,200,000, of its 7.00% Series A Non-Cumulative Perpetual Preferred Stock (the “Series A Preferred Shares”) on January 30, 2019 (the “Redemption Date”). On the Redemption Date, we redeemed each outstanding Series A Preferred Share at a redemption price of $25.00 per share. From and after the Redemption Date, all of the Series A Preferred Shares ceased to be outstanding, all dividends with respect to the Series A Preferred Shares ceased to accrue and all rights with respect to the Series A Preferred Shares ceased and terminated, except the rights of holders to receive the redemption price per share of the Series A Preferred Shares. The impact of the redemption was a reduction of approximately $30 million in cash and cash equivalents and stockholders’ equity. The redemption did not impact the income statement. Effective December 21, 2018, the Company effected a 2-for-1 stock split in the form of a dividend. Share data and per share data were retroactively adjusted for the periods presented to reflect the change in capital structure. Prior to its IPO, the Company issued the majority of common shares through private placements. In addition, the Company had employee plans that allowed certain individuals to purchase common shares outside of a private placement. The Company has various stock-based awards that are converted into common stock upon vest or exercise. Additional information related to stock-based awards can be found in Note 16: Stock-Based Compensation and information related to warrants can be found in Note 17: Stock Warrants.

Parent Company Condensed Financial Statements

12 Months Ended

Dec. 31, 2020

Condensed Financial Information Disclosure [Abstract]

Parent Company Condensed Financial Statements

The following are the condensed financial statements of CrossFirst Bankshares, Inc. (Parent only) for the periods indicated:


Condensed Balance Sheets

	Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Assets
Investment in consolidated subsidiaries
Banks	$	580,162	$	551,084
Nonbanks	—		870
Cash	46,676		52,478
Other assets	1,756		1,364
Total assets	$	628,594	$	605,796
Liabilities and stockholders’ equity
Trust preferred securities, net	$	963	$	921

Other liabilities	3,203		3,231
Total liabilities	4,166		4,152
Stockholders’ equity

Common stock	523		520
Treasury stock at cost	(6,061)		—
Additional paid-in capital	522,911		519,870
Retained earnings	77,652		64,803

Accumulated other comprehensive income	29,403		16,451
Total stockholders’ equity	624,428		601,644
Total liabilities and stockholders’ equity	$	628,594	$	605,796


Condensed Statements of Income

	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Income
Earnings of consolidated subsidiaries	$	13,682	$	28,814	$	24,330

Management fees charged to subsidiaries	8,520		7,500		6,000
Other	(18)		(4)		3
Total income	22,184		36,310		30,333
Expense
Salaries and employee benefits	5,143		4,584		8,139
Occupancy, net	405		275		368

Other	4,220		3,044		3,734
Total expense	9,768		7,903		12,241
Income tax benefit	(185)		(66)		(1,498)
Net income	$	12,601	$	28,473	$	19,590


Condensed Statements of Cash Flows

	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Operating Activities
Net income	$	12,601	$	28,473	$	19,590
Items not requiring (providing) cash
Earnings of consolidated subsidiaries	(13,682)		(28,814)		(24,330)

Share-based incentive compensation	1,917		1,974		2,224
Other adjustments	(412)		5,343		1,367
Net cash provided by (used in) operating activities	424		6,976		(1,149)
Investing Activities
Decrease (increase) in investment in subsidiaries	870		(49,825)		(157,900)

Net cash provided by (used in) investing activities	870		(49,825)		(157,900)
Financing Activities


Redemption of preferred stock	—		(30,000)		—
Dividends paid on preferred stock	—		(700)		(2,100)
Issuance of common stock, net	3		88,324		203,848
Common stock purchased and retired	—		(155)		(11,024)
Open market common share repurchases	(6,061)		—		—
Acquisition of common stock for tax withholding obligations	(1,236)		(245)		(2,132)
Proceeds from employee stock purchase plan	151		547		367
Net decrease in employee receivables	47		117		71

Net cash provided by (used in) financing activities	(7,096)		57,888		189,030
Increase (decrease) in cash	(5,802)		15,039		29,981
Cash at beginning of year	52,478		37,439		7,458
Cash at end of year	$	46,676	$	52,478	$	37,439

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsSubsequent events have been evaluated through February 26, 2021, which is the date the consolidated financial statements were available to be issued.

Nature of Operations and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Basis of Presentation

Use of Estimates

Change in Accounting Principle, Recent Accounting Pronouncements and Accounting Guidance Adopted

Change in Accounting Principle

Recent Accounting Pronouncements

The following ASUs represent changes to current accounting guidance that will be adopted in future years:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-05

Revenue from Contracts with Customers (Topic 606) and Leases (Topic 842): Effective Dates for Certain Entities

Effective immediately, but included here for information purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective date for ASU 2016-02 (Leases).

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

ASU 2019-10

Financial Instruments-Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates

Effective immediately, but included here for informational purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective dates for all entities related to: (i) credit losses - ASU 2016-13; (ii) goodwill - ASU 2017-04; (iii) leases - ASU 2016-02; and (iv) hedging - ASU 2017-12

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

If a company loses its EGC status during the fiscal year, the company would be required to review all ASUs as a PBE and adopt any ASU effective for PBEs as of the first day of that year.

ASU 2018-15

Intangibles-Goodwill and Other-Internal-Use Software

ASU 2018-15 will be effective for the Company on December 31, 2021.

The Company plans to use the guidance on a prospective basis.

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023.

The Company will monitor the progress and the requirements related to adoption.

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

Requires lessees and lessors to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements.

The update will also increase disclosures around leases, including qualitative and specific quantitative measures.

Accounting Guidance Adopted During Fiscal Years 2020, 2019, and 2018

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The Company had more than $1 billion in loans tied to LIBOR as of December 31, 2020.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

ASU 2018-07:

Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting

January 2019

Early adoption

The amendments include: (i) grants are measured at grant-date fair value of the equity instruments; (ii) equity-classified nonemployee share-based payment awards are measured at the grant date;

In addition, the Company recorded a $306 thousand deferred tax asset that was offset with retained earnings to account for the tax impact.

The Company will record forfeitures as they occur and base fair market values on the expected term, like the Company’s accounting for employee-based awards.

ASU 2016-01:

Financial Instruments-Overall (Subtopic 825-10)

January 2019

The Company transferred $69 thousand from accumulated other comprehensive loss to retained earnings in January 2019.

There was no impact to the income statement on the adoption date.

ASU 2014-09:

Revenue from Contracts with Customers

January 2019

Amended guidance related to revenue from contracts with customers.

ASU 2018-02:

Income Statement Reporting Comprehensive Income (Topic 220)

February 2018, retrospectively applied to 2017

Allowed a reclassification from accumulated other

comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act.

The Company recognized a reclassification totaling $1 million related to items in accumulated other comprehensive income.

ASU 2017-09:

Compensation -Stock Compensation (Topic 718): Scope of Modification Accounting

January 2018

does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification;

The adoption of ASU 2017-09 did not have a significant impact on the Company’s consolidated financial statements.

Changes Affecting Comparability

Operating Segments

Cash Equivalents

Cash EquivalentsThe Company considers all liquid investments with original maturities of three months or less to be cash equivalents. At December 31, 2020, cash equivalents consisted primarily of both interest-bearing and noninterest bearing accounts with other banks. Approximately $319 million of the Company’s cash and cash equivalents were held at the Federal Reserve Bank of Kansas City at December 31, 2020. The Company is required to maintain reserve funds in cash and/or on deposit with the Federal Reserve Bank. The reserve required at December 31, 2020 was $0. In addition, the Company is required from time to time to place cash collateral with a third party as part of its back-to-back swap agreements.

Securities

Loans

Nonperforming Loans

Allowance for Loan Losses

Impaired Loans

Premises and Equipment

The estimated useful lives for each major depreciable classification of premises and equipment are as follows:

Buildings and improvements

35 - 40 years

Leasehold improvements

5 - 15 years

Furniture and fixtures

5 - 7 years

Equipment

3 - 5 years

Long-Lived Asset Impairment

Restricted Equity Securities

Bank-Owned Life Insurance

Foreclosed Assets Held-for-Sale

Goodwill

GoodwillGoodwill was evaluated annually for impairment or more frequently if impairment indicators were present. A qualitative assessment was performed to determine whether the existence of events or circumstances led to a determination that it was more likely than not the fair value was less than the carrying amount, including goodwill. If, based on the evaluation, it was determined to be more likely than not that the fair value was less than the carrying value, then goodwill was tested further for impairment. If the implied fair value of goodwill was lower than its carrying amount, a goodwill impairment was indicated and goodwill was written down to its implied fair value.

Core Deposit Intangible

Core Deposit IntangibleThe core deposit intangible represents the identified intangible asset relating to the deposit relationships acquired in past business combinations. The value of the core deposit intangible is based primarily upon the expected future benefits of earnings capacity attributable to those deposits.

Related Party Transactions

Related Party TransactionsThe Company extends credit and receives deposits from related parties. In management’s opinion, the loans and deposits were made in the ordinary course of business and made on similar terms as those prevailing at the time with other persons.

Stock-Based Compensation

Stock-Based CompensationThe Company accounts for all stock-based compensation transactions in accordance with Accounting Standard Codification (“ASC”) 718, Compensation - Stock Compensation, which requires that stock compensation transactions be recognized as compensation expense in the consolidated statement of income and other comprehensive income based on their fair values on the measurement date. The Company recognizes forfeitures as they occur. New shares are issued upon exercise of an award. The Company records permanent tax differences through the income tax provision upon vesting or exercise of a stock-based award.

Transfers of Financial Assets

Income Taxes

Earnings Per Share

Fair Values of Financial Instruments

Comprehensive Income

Derivative Financial Instruments

Non-accrual Loans

Troubled Debt Restructurings (TDRs)

Troubled Debt Restructurings (“TDR”)

Fair Value Measurement


Level 1						Quoted prices in active markets for identical assets or liabilities
Level 2						Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3						Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

Collateral-Dependent Impaired Loans, Net of ALLL

Foreclosed Assets Held-for-Sale

The fair value of foreclosed assets held-for-sale is based on the appraised fair value of the collateral, less estimated cost to sell.

Nature of Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Estimated Useful Lives

The estimated useful lives for each major depreciable classification of premises and equipment are as follows:

Buildings and improvements

35 - 40 years

Leasehold improvements

5 - 15 years

Furniture and fixtures

5 - 7 years

Equipment

3 - 5 years

Major classifications of premises and equipment, stated at cost, are as follows:


	As of December 31,
	2020		2019

	(Dollars in thousands)
Land	$	7,384	$	7,384
Building and improvements	62,331		59,500
Construction in progress	95		524
Furniture and fixtures	14,073		12,851
Equipment	9,587		9,158
	93,470		89,417
Less: accumulated depreciation	22,961		19,207

Premises and equipment, net	$	70,509	$	70,210

Schedule of Recent Accounting Pronouncements, Adopted Accounting Guidance and Changes in Accounting Principles

The following ASUs represent changes to current accounting guidance that will be adopted in future years:

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-05

Revenue from Contracts with Customers (Topic 606) and Leases (Topic 842): Effective Dates for Certain Entities

Effective immediately, but included here for information purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective date for ASU 2016-02 (Leases).

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

ASU 2019-10

Financial Instruments-Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates

Effective immediately, but included here for informational purposes as it relates to the ASU listed in the “description” section.

Amended the mandatory effective dates for all entities related to: (i) credit losses - ASU 2016-13; (ii) goodwill - ASU 2017-04; (iii) leases - ASU 2016-02; and (iv) hedging - ASU 2017-12

The amended dates were incorporated into the “anticipated date of adoption” section for the appropriate ASU below.

If a company loses its EGC status during the fiscal year, the company would be required to review all ASUs as a PBE and adopt any ASU effective for PBEs as of the first day of that year.

ASU 2018-15

Intangibles-Goodwill and Other-Internal-Use Software

ASU 2018-15 will be effective for the Company on December 31, 2021.

The Company plans to use the guidance on a prospective basis.

ASU 2016-13

Financial Instruments-Credit Losses

If the Company maintains its EGC status, the Company is not required to implement this standard until January 2023.

The Company will monitor the progress and the requirements related to adoption.

Standard

Anticipated Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2016-02

Leases (Topic 842)

Requires lessees and lessors to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements.

The update will also increase disclosures around leases, including qualitative and specific quantitative measures.

Accounting Guidance Adopted During Fiscal Years 2020, 2019, and 2018

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2020-04:

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

June 30, 2020

The Company had more than $1 billion in loans tied to LIBOR as of December 31, 2020.

ASU 2019-12:

Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes

January 1, 2020

(Early Adoption)

The amendments in the ASU did not have a material impact on the Company’s tax methodology, processes, or the Company’s financial statements.

Standard

Date of Adoption

Description

Effect on Financial Statements or Other Significant Matters

ASU 2018-13:

Fair Value Measurement (Topic 820): Disclosure Framework

January 1, 2020

ASU 2017-04:

Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment

January 1, 2020

(Early Adoption)

ASU 2018-07:

Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting

January 2019

Early adoption

The amendments include: (i) grants are measured at grant-date fair value of the equity instruments; (ii) equity-classified nonemployee share-based payment awards are measured at the grant date;

In addition, the Company recorded a $306 thousand deferred tax asset that was offset with retained earnings to account for the tax impact.

The Company will record forfeitures as they occur and base fair market values on the expected term, like the Company’s accounting for employee-based awards.

ASU 2016-01:

Financial Instruments-Overall (Subtopic 825-10)

January 2019

The Company transferred $69 thousand from accumulated other comprehensive loss to retained earnings in January 2019.

There was no impact to the income statement on the adoption date.

ASU 2014-09:

Revenue from Contracts with Customers

January 2019

Amended guidance related to revenue from contracts with customers.

ASU 2018-02:

Income Statement Reporting Comprehensive Income (Topic 220)

February 2018, retrospectively applied to 2017

Allowed a reclassification from accumulated other

comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act.

The Company recognized a reclassification totaling $1 million related to items in accumulated other comprehensive income.

ASU 2017-09:

Compensation -Stock Compensation (Topic 718): Scope of Modification Accounting

January 2018

does not affect any of the inputs to the valuation technique that the entity uses to value the award, the entity is not required to estimate the value immediately before and after the modification;

The adoption of ASU 2017-09 did not have a significant impact on the Company’s consolidated financial statements.

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of the Computation of Basic and Diluted Earnings Per Share

The following table presents the computation of basic and diluted earnings per share:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands, except per share data)
Earnings per Share
Net income	$	12,601	$	28,473	$	19,590
Less: preferred stock dividends	—		175		2,100
Net income available to common stockholders	$	12,601	$	28,298	$	17,490
Weighted average common shares	52,070,624		47,679,184		36,422,612
Earnings per share	$	0.24	$	0.59	$	0.48
Dilutive Earnings Per Share
Net income available to common stockholders	$	12,601	$	28,298	$	17,490
Weighted average common shares	52,070,624		47,679,184		36,422,612
Effect of dilutive shares	477,923		896,951		1,069,955
Weighted average dilutive common shares	52,548,547		48,576,135		37,492,567
Diluted earnings per share	$	0.24	$	0.58	$	0.47
Stock-based awards not included because to do so would be antidilutive	1,014,639		521,659		407,852

Securities (Tables)

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule of Amortized Cost and Approximate Fair Values of Available-for-Sale Debt and Equity Securities

The amortized cost and approximate fair values, together with gross unrealized gains and losses, of period end available-for-sale securities consisted of the following:


	December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	104,839	$	4,277	$	—	$	109,116
Collateralized mortgage obligations - GSE residential	52,070		984		42		53,012
State and political subdivisions	454,486		33,642		31		488,097
Corporate bonds	4,259		104		—		4,363
Total available-for-sale securities	$	615,654	$	39,007	$	73	$	654,588


	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Approximate Fair Value
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential	$	151,037	$	1,668	$	193	$	152,512
Collateralized mortgage obligations - GSE residential	128,876		625		289		129,212
State and political subdivisions	436,448		19,996		104		456,340
Corporate bonds	1,321		88		—		1,409
Total available-for-sale securities	$	717,682	$	22,377	$	586	$	739,473

Schedule of Gross Realized Gains and Losses from Sales or Maturities of Available-for-Sale Securities

The following table summarizes the gross realized gains and losses from sales or maturities of AFS securities:


	For the Year Ended December 31, 2020
	Gross Realized Gains(1)		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	1,788	$	84	$	1,704
(1) Included $75 thousand related to a previously disclosed OTTI municipal security that was settled in 2020.


	For the Year Ended December 31, 2019
	Gross Realized Gains		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	1,043	$	56	$	987


	For the Year Ended December 31, 2018
	Gross Realized Gains		Gross Realized Losses		Net Realized Gain
	(Dollars in thousands)
Available-for-sale securities	$	2,083	$	1,545	$	538

Schedule of Amortized Cost, Fair Value and Weighted Average Yield of Available-for-Sale Debt Securities by Contractual Maturity

The amortized cost, fair value, and weighted average yield of available-for-sale securities by contractual maturity, are shown below:


	December 31, 2020
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	48		$	199		$	104,592		$	104,839
Estimated fair value	$	—		$	51		$	212		$	108,853		$	109,116
Weighted average yield(2)	—		%	4.57		%	3.95		%	1.96		%	1.96		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,483		$	49,587		$	52,070
Estimated fair value	$	—		$	—		$	2,721		$	50,291		$	53,012
Weighted average yield(2)	—		%	—		%	2.77		%	1.02		%	1.11		%
State and political subdivisions
Amortized cost	$	653		$	7,661		$	62,313		$	383,859		$	454,486
Estimated fair value	$	657		$	7,846		$	67,844		$	411,750		$	488,097
Weighted average yield(2)	8.18		%	5.40		%	3.40		%	2.94		%	3.05		%
Corporate bonds
Amortized cost	$	—		$	358		$	3,901		$	—		$	4,259
Estimated fair value	$	—		$	368		$	3,995		$	—		$	4,363
Weighted average yield(2)	—		%	4.70		%	4.54		%	—		%	4.55		%
Total available-for-sale securities
Amortized cost	$	653		$	8,067		$	68,896		$	538,038		$	615,654
Estimated fair value	$	657		$	8,265		$	74,772		$	570,894		$	654,588
Weighted average yield(2)	8.18		%	5.36		%	3.44		%	2.57		%	2.71		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.


	December 31, 2019
	Within			After One to			After Five to			After
	One Year			Five Years			Ten Years			Ten Years			Total
	(Dollars in thousands)
Available-for-sale securities
Mortgage-backed - GSE residential(1)
Amortized cost	$	—		$	—		$	329		$	150,708		$	151,037
Estimated fair value	$	—		$	—		$	341		$	152,171		$	152,512
Weighted average yield(2)	—		%	—		%	4.01		%	2.57		%	2.58		%
Collateralized mortgage obligations - GSE residential(1)
Amortized cost	$	—		$	—		$	2,527		$	126,349		$	128,876
Estimated fair value	$	—		$	—		$	2,594		$	126,618		$	129,212
Weighted average yield(2)	—		%	—		%	2.77		%	2.47		%	2.47		%
State and political subdivisions
Amortized cost	$	523		$	6,050		$	51,747		$	378,128		$	436,448
Estimated fair value	$	523		$	6,169		$	55,001		$	394,647		$	456,340
Weighted average yield(2)	9.38		%	5.76		%	3.59		%	3.08		%	3.19		%
Corporate bonds
Amortized cost	$	—		$	—		$	1,321		$	—		$	1,321
Estimated fair value	$	—		$	—		$	1,409		$	—		$	1,409
Weighted average yield(2)	—		%	—		%	5.68		%	—		%	5.68		%
Total available-for-sale securities
Amortized cost	$	523		$	6,050		$	55,924		$	655,185		$	717,682
Estimated fair value	$	523		$	6,169		$	59,345		$	673,436		$	739,473
Weighted average yield(2)	9.38		%	5.76		%	3.60		%	2.85		%	2.94		%
(1) Actual maturities may differ from contractual maturities because issuers may have the rights to call or prepay obligations with or without prepayment penalties.
(2) Yields are calculated based on amortized cost.

Schedule of Investments' Gross Unrealized Losses, Number of Securities and Fair Value of Investments


	December 31, 2020
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-Sale Securities
Mortgage-backed - GSE residential	$	—	$	—	—	$	—	$	—	—	$	—	$	—	—
Collateralized mortgage obligations - GSE residential	9,933		42		5	—		—		—	9,933		42		5
State and political subdivisions	8,525		31		8	25		—		1	8,550		31		9
Corporate bonds	—		—		—	—		—		—	—		—		—
Total temporarily impaired AFS securities	$	18,458	$	73	13	$	25	$	—	1	$	18,483	$	73	14


	December 31, 2019
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities	Fair Value		Unrealized Losses		Number of Securities
	(Dollars in thousands)
Available-for-Sale Securities
Mortgage-backed - GSE residential	$	7,959	$	38	2	$	20,396	$	155	4	$	28,355	$	193	6
Collateralized mortgage obligations - GSE residential	48,980		199		7	8,622		90		9	57,602		289		16
State and political subdivisions	21,412		102		11	167		2		2	21,579		104		13
Corporate bonds	530		—		1	—		—		—	530		—		1
Total temporarily impaired AFS securities	$	78,881	$	339	21	$	29,185	$	247	15	$	108,066	$	586	36

Schedule of Recorded Fair Value and Gains and Losses on Equity Securities

The following is a summary of the recorded fair value and the unrealized and realized gains and losses recognized in net income on equity securities:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Net gains recognized during the period on equity securities	$	46	$	62
Less: net gains recognized during the period on equity securities sold during the period	—		—
Unrealized gain recognized during the reporting period on equity securities still held at the reporting date	$	46	$	62

Loans and Allowance for Loan Leases (Tables)

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Schedule of Categories of Loans

Categories of loans at December 31, 2020 and 2019 include:


	As of December 31,
	2020		2019
	(Dollars in thousands)
Commercial	$	1,338,757	$	1,356,817
Energy	345,233		408,573
Commercial real estate	1,179,534		1,024,041
Construction and land development	563,144		628,418
Residential and multifamily real estate	680,932		398,695
Paycheck Protection Program ("PPP")	292,230		—


Consumer	55,270		45,163
Gross loans	4,455,100		3,861,707
Less: Allowance for loan losses	75,295		56,896
Less: Net deferred loan fees and costs	13,203		9,463

Net loans	$	4,366,602	$	3,795,348

Schedule of Activity in Allowance for Loan Losses by Portfolio Segment


	As of or For the Year Ended December 31, 2020
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Provision charged to expense	19,959		16,867		15,853		96		3,700		—		225		56,700
Charged-off	(31,205)		(5,091)		(1,584)		—		(445)		—		(104)		(38,429)
Recoveries	75		—		—		—		41		—		12		128
Ending balance	$	24,693	$	18,341	$	22,354	$	3,612	$	5,842	$	—	$	453	$	75,295
Ending balance
Individually evaluated for impairment	$	1,115	$	3,370	$	5,048	$	—	$	—	$	—	$	—	$	9,533
Collectively evaluated for impairment	$	23,578	$	14,971	$	17,306	$	3,612	$	5,842	$	—	$	453	$	65,762
Allocated to loans
Individually evaluated for impairment	$	44,678	$	26,045	$	44,318	$	—	$	6,329	$	—	$	244	$	121,614
Collectively evaluated for impairment	$	1,294,079	$	319,188	$	1,135,216	$	563,144	$	674,603	$	292,230	$	55,026	$	4,333,486
Ending balance	$	1,338,757	$	345,233	$	1,179,534	$	563,144	$	680,932	$	292,230	$	55,270	$	4,455,100


	As of or For the Year Ended December 31, 2019
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826
Provision charged to expense	27,219		(1,273)		1,771		1,041		1,090		—		$	52	29,900
Charged-off	(7,954)		(3,000)		(441)		—		(8)		—		$	(20)	(11,423)
Recoveries	15		576		—		—		—		—		$	2	593
Ending balance	$	35,864	$	6,565	$	8,085	$	3,516	$	2,546	$	—	$	320	$	56,896
Ending balance
Individually evaluated for impairment	$	19,942	$	1,949	$	210	$	—	$	197	$	—	$	—	$	22,298
Collectively evaluated for impairment	$	15,922	$	4,616	$	7,875	$	3,516	$	2,349	$	—	$	320	$	34,598
Allocated to loans
Individually evaluated for impairment	$	70,876	$	9,744	$	10,492	$	—	$	2,388	$	—	$	—	$	93,500
Collectively evaluated for impairment	$	1,285,941	$	398,829	$	1,013,549	$	628,418	$	396,307	$	—	$	45,163	$	3,768,207
Ending balance	$	1,356,817	$	408,573	$	1,024,041	$	628,418	$	398,695	$	—	$	45,163	$	3,861,707


	As of or For the Year Ended December 31, 2018
	Commercial		Energy		Commercial Real Estate		Construction and Land Development		Residential and Multifamily Real Estate		PPP		Consumer		Total
	(Dollars in thousands)
Allowance for loan losses
Beginning balance	$	11,378	$	7,726	$	4,668	$	1,200	$	905	$	—	$	214	$	26,091
Provision charged to expense	5,720		3,717		2,087		1,275		559		—		142		13,500
Charged-off	(976)		(1,256)		—		—		—		—		(71)		(2,303)
Recoveries	462		75		—		—		—		—		1		538
Ending balance	$	16,584	$	10,262	$	6,755	$	2,475	$	1,464	$	—	$	286	$	37,826

Schedule of Credit Risk

The following tables present the credit risk profile of the Company’s loan portfolio based on an internal rating category and portfolio segment:


	As of December 31, 2020
	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
Commercial	$	1,182,519	$	66,142	$	63,407	$	26,124	$	565	$	—	$	1,338,757
Energy	145,598		90,134		83,574		22,177		3,750		—		345,233
Commercial real estate	1,035,056		67,710		57,680		19,088		—		—		1,179,534
Construction and land development	561,871		125		1,148		—		—		—		563,144
Residential and multifamily real estate	672,327		305		5,199		3,101		—		—		680,932
PPP	292,230		—		—		—		—		—		292,230


Consumer	55,026		—		—		244		—		—		55,270
Total	$	3,944,627	$	224,416	$	211,008	$	70,734	$	4,315	$	—	$	4,455,100


	As of December 31, 2019
	Pass		Special Mention		Substandard Performing		Substandard Nonperforming		Doubtful		Loss		Total
	(Dollars in thousands)
Commercial	$	1,258,952	$	27,069	$	38,666	$	32,130	$	—	$	—	$	1,356,817
Energy	392,233		9,460		2,340		—		4,540		—		408,573
Commercial real estate	1,007,921		9,311		5,746		120		943		—		1,024,041
Construction and land development	628,418		—		—		—		—		—		628,418
Residential and multifamily real estate	394,495		1,789		469		1,942		—		—		398,695
PPP	—		—		—		—		—		—		—


Consumer	45,163		—		—		—		—		—		45,163
Total	$	3,727,182	$	47,629	$	47,221	$	34,192	$	5,483	$	—	$	3,861,707

Schedule of Loan Portfolio Aging Analysis

The following tables present the Company’s loan portfolio aging analysis of the recorded investment in loans as of December 31, 2020 and 2019:


	As of December 31, 2020
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
Commercial	$	8,497	$	264	$	11,236	$	19,997	$	1,318,760	$	1,338,757	$	—
Energy	—		—		7,173		7,173		338,060		345,233		372
Commercial real estate	63		7,677		4,825		12,565		1,166,969		1,179,534		—
Construction and land development	—		—		—		—		563,144		563,144		—
Residential and multifamily real estate	1,577		—		3,520		5,097		675,835		680,932		652
PPP	—		—		—		—		292,230		292,230		—


Consumer	—		—		—		—		55,270		55,270		—
Total	$	10,137	$	7,941	$	26,754	$	44,832	$	4,410,268	$	4,455,100	$	1,024


	As of December 31, 2019
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More		Total Past Due		Current		Total Loans Receivable		Loans >= 90 Days and Accruing
	(Dollars in thousands)
Commercial	$	1,091	$	276	$	30,911	$	32,278	$	1,324,539	$	1,356,817	$	37
Energy	2,340		—		4,593		6,933		401,640		408,573		53
Commercial real estate	316		—		4,589		4,905		1,019,136		1,024,041		4,501
Construction and land development	196		—		—		196		628,222		628,418		—
Residential and multifamily real estate	2,347		—		1,919		4,266		394,429		398,695		—
PPP	—		—		—		—		—		—		—


Consumer	2		254		—		256		44,907		45,163		—
Total	$	6,292	$	530	$	42,012	$	48,834	$	3,812,873	$	3,861,707	$	4,591

Schedule of Impaired Loans

The following tables present loans individually evaluated for impairment, including all restructured and formerly restructured loans, for the periods ended December 31, 2020 and December 31, 2019:


	As of or For the Year Ended December 31, 2020
	Recorded Balance		Unpaid Principal Balance		Specific Allowance		Average Investment Impaired Loans		Interest Income Recognized
	(Dollars in thousands)
Loans without a specific valuation
Commercial	$	36,111	$	50,245	$	—	$	29,591	$	1,143
Energy	3,864		6,677		—		6,710		53
Commercial real estate	10,079		11,663		—		11,952		390
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	6,329		6,585		—		6,315		145
PPP	—		—		—		—		—


Consumer	244		244		—		250		—
Loans with a specific valuation
Commercial	8,567		8,567		1,115		8,637		249
Energy	22,181		27,460		3,370		23,823		542
Commercial real estate	34,239		34,239		5,048		27,980		1,035
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	—		—		—		—		—
PPP	—		—		—		—		—


Consumer	—		—		—		—		—


Total
Commercial	44,678		58,812		1,115		38,228		1,392
Energy	26,045		34,137		3,370		30,533		595
Commercial real estate	44,318		45,902		5,048		39,932		1,425
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	6,329		6,585		—		6,315		145
PPP	—		—		—		—		—


Consumer	244		244		—		250		—
	$	121,614	$	145,680	$	9,533			$	3,557


	As of or For the Year Ended December 31, 2019
	Recorded Balance		Unpaid Principal Balance		Specific Allowance		Average Investment Impaired Loans		Interest Income Recognized
	(Dollars in thousands)
Loans without a specific valuation
Commercial	$	35,846	$	35,846	$	—	$	44,646	$	1,549
Energy	2,864		2,864		—		4,381		199
Commercial real estate	9,464		9,464		—		12,907		669
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	2,139		2,139		—		2,140		14
PPP	—		—		—		—		—


Consumer	—		—		—		—		—
Loans with a specific valuation
Commercial	35,030		40,030		19,942		39,688		460
Energy	6,880		9,880		1,949		10,547		264
Commercial real estate	1,028		1,028		210		1,037		47
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	249		249		197		249		10
PPP	—		—		—		—		—


Consumer	—		—		—		—		—

Total
Commercial	70,876		75,876		19,942		84,334		2,009
Energy	9,744		12,744		1,949		14,928		463
Commercial real estate	10,492		10,492		210		13,944		716
Construction and land development	—		—		—		—		—
Residential and multifamily real estate	2,388		2,388		197		2,389		24
PPP	—		—		—		—		—


Consumer	—		—		—		—		—
	$	93,500	$	101,500	$	22,298			$	3,212

Schedule of Nonaccrual Loans

The following table presents the Company’s non-accrual loans by loan category at December 31, 2020 and 2019:


	As of December 31,
	2020		2019
	(Dollars in thousands)
Commercial	$	26,691	$	32,130
Energy	25,927		4,540
Commercial real estate	19,088		1,063
Construction and land development	—		—
Residential and multifamily real estate	3,101		1,942
PPP	—		—


Consumer	244		—
Total nonaccrual loans	$	75,051	$	39,675

Schedule of Loans Restructured

The table below presents loans restructured during the years ended December 31, 2020 and 2019, including the post-modification outstanding balance and the type of concession made:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Commercial
- Debt forgiveness	$	17,297	$	—
- Reduction of monthly payment	1,224		994
- Extension of maturity date	—		30,005
- Interest rate reduction	3,171		—
Energy
- Reduction of monthly payment	7,825		—
- Extension of maturity date	2,340		—
Commercial real estate
- Deferred payment	21,210		—
- Reduction of monthly payment	—		3,767






Total troubled debt restructurings	$	53,067	$	34,766

The balance of restructured loans and the balance of those loans that are in default at any time during the past 12 months at December 31, 2020 and 2019 is provided below:


	For the Year Ended December 31,
	2020					2019
	Number of Loans	Outstanding Balance		Balance 90 Days Past Due at Any Time During Previous 12 Months(1)		Number of Loans	Outstanding Balance		Balance 90 Days Past Due at Any Time During Previous 12 Months(1)
	(Dollars in thousands)
Commercial	7	$	22,759	$	2,776	7	$	31,770	$	831
Energy	4	11,053		2,713		2	2,864		—
Commercial real estate	4	26,038		—		3	4,909		—
Construction and land development	—	—		—		—	—		—
Residential and multifamily real estate	2	3,245		—		—	—		—
PPP	—	—		—		—	—		—
Consumer	—	—		—		—	—		—
Total troubled debt restructured loans	17	$	63,095	$	5,489	12	$	39,543	$	831
(1) Default is considered to mean 90 days or more past due as to interest or principal.

Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Schedule of Major Classifications of Premises and Equipment

The estimated useful lives for each major depreciable classification of premises and equipment are as follows:

Buildings and improvements

35 - 40 years

Leasehold improvements

5 - 15 years

Furniture and fixtures

5 - 7 years

Equipment

3 - 5 years

Major classifications of premises and equipment, stated at cost, are as follows:


	As of December 31,
	2020		2019

	(Dollars in thousands)
Land	$	7,384	$	7,384
Building and improvements	62,331		59,500
Construction in progress	95		524
Furniture and fixtures	14,073		12,851
Equipment	9,587		9,158
	93,470		89,417
Less: accumulated depreciation	22,961		19,207

Premises and equipment, net	$	70,509	$	70,210

Goodwill and Core Deposit Intangible (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Change in Goodwill and Core Deposit Intangible

The change in goodwill and core deposit intangible during the years ended December 31, 2020 and 2019 were:


	Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount
	(Dollars in thousands)
December 31, 2020
Goodwill	$	7,397	$	—	$	7,397	$	—
Core deposit intangible	1,014		806		—		208
Total goodwill and intangible assets	$	8,411	$	806	$	7,397	$	208

December 31, 2019
Goodwill	$	7,397	$	—	$	—	$	7,397
Core deposit intangible	1,014		717		—		297
Total goodwill and intangible assets	$	8,411	$	717	$	—	$	7,694

Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Outstanding Derivatives

As of December 31, 2020 and 2019, the Company had the following outstanding derivatives that were not designated as hedges in qualifying hedging relationships:



	December 31, 2020			December 31, 2019
Product	Number of Instruments	Notional Amount		Number of Instruments	Notional Amount
	(Dollars in thousands)
Back-to-back swaps	56	$	515,567	56	$	380,050

The table below presents the fair value of the Company’s derivative financial instruments and their classification on the balance sheet as of December 31, 2020 and 2019:


	Asset Derivatives			Liability Derivatives
	Balance Sheet	As of December 31,		Balance Sheet	As of December 31,
	Location	2020	2019	Location	2020		2019
	(Dollars in thousands)
Derivatives not designated as hedging instruments
Interest rate products	Other assets	$24,094	$9,838	Other liabilities	$	24,454	$	9,907

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

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+ Details

Borrowing Arrangements (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Borrowings

The following table summarizes borrowings at December 31, 2020 and 2019:


	As of and For the Year Ended December 31,
	2020					2019
	(Dollars in thousands)
	Balance		Rate(6)	Maximum Balance at Any End of Month		Balance		Rate(6)	Maximum Balance at Any End of Month
Repurchase agreements(1)	$	2,306	0.15%	$	57,259	$	14,921	1.00%	$	72,048
Federal funds purchased(2)	—		NA	30,000		—		NA	25,000
FHLB advances(3)	293,100		1.78	450,659		358,743		1.84	358,743
FHLB line of credit(3)	—		NA	20,000		—		NA	30,000
Federal Reserve Borrowing(4)	—		NA	15,000		—		NA	—

Trust preferred security(5)	963		1.96%	$	963	921		3.63%	$	921
Total borrowings	$	296,369				$	374,585

(6) Represents the year-end weighted average interest rate.

Schedule of Other Borrowing Capacities

The following table summarizes the Company’s other borrowing capacities at December 31, 2020 and 2019:


	As of December 31,
	2020		2019
	(Dollars in thousands)
FHLB borrowing capacity relating to loans	$	518,191	$	490,218
FHLB borrowing capacity relating to securities	—		—
Total FHLB borrowing capacity	$	518,191	$	490,218
Unused Federal Reserve borrowing capacity	$	435,805	$	287,857

Schedule of Scheduled Maturities for Borrowings

The scheduled maturities, excluding interest, of the Company’s borrowings at December 31, 2020 were as follows:


	As of December 31, 2020
	Within One Year		One to Two Years		Two to Three Years		Three to Four Years		Four to Five Years		After Five Years		Total
	(Dollars in thousands)
Time deposits	$	867,927	$	114,963	$	44,392	$	15,501	$	699	$	—	$	1,043,482
Fed funds purchased & repurchase agreements	2,306		—		—		—		—		—		2,306
FHLB borrowings	16,500		21,500		35,000		—		5,100		215,000		293,100
Trust preferred securities(1)	—		—		—		—		—		963		963
Total	$	886,733	$	136,463	$	79,392	$	15,501	$	5,799	$	215,963	$	1,339,851

(1) The contract value of the trust preferred securities is $2.6 million and is currently being accreted to the maturity date of 2035.

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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+ Details

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The provision for income taxes includes these components:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Taxes currently payable (receivable)	$	7,970	$	7,624	$	(2,155)



Deferred income tax liability	(5,257)		(3,486)		(239)
Income tax expense (benefit)	$	2,713	$	4,138	$	(2,394)

Schedule of the Reconciliation of Income Tax Expense (Benefit)

An income tax reconciliation at the statutory rate to the Company’s actual income tax expense (benefit) is shown below:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Computed at the statutory rate (21%)	$	3,216	$	6,848	$	3,611
Increase (decrease) resulting from
Tax-exempt income	(3,109)		(2,913)		(3,508)
Nondeductible expenses	194		356		380
State tax credit	—		(1,361)		(3,129)
State income tax expense (benefit)	679		1,288		687
Equity-based compensation	179		(88)		(445)

Goodwill impairment	1,553		—		—
Other adjustments	1		8		10
Actual tax expense (benefit)	$	2,713	$	4,138	$	(2,394)

Schedule of Tax Effects of Temporary Differences Related to Deferred Taxes

The tax effects of temporary differences related to deferred taxes shown on the consolidated balance sheets within other assets are presented below:


	As of December 31,
	December 31, 2020		December 31, 2019
	(Dollars in thousands)
Deferred tax assets

Allowance for loan losses	$	18,124	$	13,928
Lease incentive	564		294
Impairment of available-for-sale securities	—		493

Loan fees	3,178		2,317

Accrued expenses	2,128		2,131
Deferred compensation	2,474		2,444

State tax credit	2,621		3,287
Other	946		420
Total deferred tax asset	30,035		25,314
Deferred tax liability

Net unrealized gain on securities available-for-sale	(9,531)		(5,339)
FHLB stock basis	(1,209)		(996)
Premises and equipment	(2,881)		(3,620)
Other	(1,601)		(1,577)
Total deferred tax liability	(15,222)		(11,532)
Net deferred tax asset	$	14,813	$	13,782

Changes in Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of Amounts Reclassified from AOCI

Amounts reclassified from accumulated other comprehensive income (“AOCI”) and the affected line items in the consolidated statements of income were as follows:


	For the Year Ended December 31,						Affected Line Item in the
	2020		2019		2018		Statements of Income
	(Dollars in thousands)
Unrealized gains on available-for-sale securities	$	1,704	$	987	$	538	Gain on sale of available-for-sale debt securities

Less: tax effect	415		242		132		Income tax expense
Net reclassified amount	$	1,289	$	745	$	406

Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2020

Banking Regulation, Risk-Based Information [Abstract]

Schedule of Actual Capital Amounts and Ratios

The Company’s and the Bank’s actual capital amounts and ratios as of December 31, 2020 and 2019 are presented in the following table


	Actual				Minimum Capital Required - Basel III			Required to be Considered Well Capitalized
	Amount		Ratio			Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
December 31, 2020
Total Capital to Risk-Weighted Assets
Consolidated	$	656,806	13.1	%		$	527,486	10.5	%	N/A		N/A
Bank	611,533		12.2			527,217		10.5		$	502,111	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	593,865		11.8			427,012		8.5		N/A		N/A
Bank	548,615		10.9			426,794		8.5		401,689		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	592,902		11.8			351,657		7.0		N/A		N/A
Bank	548,615		10.9			351,478		7.0		326,372		6.5
Tier I Capital to Average Assets
Consolidated	593,865		10.8			219,550		4.0		N/A		N/A
Bank	$	548,615	10.0	%		$	219,441	4.0	%	$	274,302	5.0	%
December 31, 2019
Total Capital to Risk-Weighted Assets
Consolidated	$	633,228	13.4	%		$	495,095	10.5	%	N/A		N/A
Bank	581,600		12.3			494,954		10.5		$	471,385	10.0	%
Tier I Capital to Risk-Weighted Assets
Consolidated	576,332		12.2			400,791		8.5		N/A		N/A
Bank	524,704		11.1			400,677		8.5		377,108		8.0
Common Equity Tier 1 to Risk-Weighted Assets
Consolidated	575,411		12.2			330,063		7.0		N/A		N/A
Bank	524,704		11.1			329,970		7.0		306,400		6.5
Tier I Capital to Average Assets
Consolidated	576,332		12.1			191,093		4.0		N/A		N/A
Bank	$	524,704	11.0	%		$	191,170	4.0	%	$	238,963	5.0	%

Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Non-Interest Income

The following table disaggregates the noninterest income subject to ASU 2014-09 by category:


	For the Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Noninterest income subject to ASU 2014-09
Service charges and fees (rebates) on customer accounts	$	2,803	$	604
ATM and credit card interchange income	4,379		1,785
International fees	1,091		716
Other fees	87		122
Total noninterest income from contracts with customers	8,360		3,227
Noninterest income not subject to ASU 2014-09
Other noninterest income	3,373		5,480
Total noninterest income	$	11,733	$	8,707

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation

The table below summarizes stock-based compensation for the years ended December 31, 2020, 2019, and 2018:


	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Stock appreciation rights	$	994	$	1,243	$	1,457
Performance-based stock awards	249		271		578
Restricted stock awards	3,078		3,174		2,404

Employee stock purchase plan	42		36		165
Total stock-based compensation	$	4,363	$	4,724	$	4,604

Schedule of Assumptions Used in the Black-Scholes Valuation Model for SSARs


	For the Year Ended December 31,
	2020	2019(1)	2018
	(Dollars in thousands, except per share data)
Assumptions:
Expected volatility	20.34%	24.63% - 33.63%	25.69% - 42.99%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	6.00	4.24 - 7.00	4.00 - 9.50
Risk-free rate	0.38%	1.45% - 2.55%	2.50% - 2.94%
Weighted average grant date fair value per share	$1.93	$5.43	$4.68
Aggregate intrinsic value of SSARs exercised	$571	$493	$2,214
Total fair value of SSARs vested during the year	$1,245	$1,171	$1,710
Unrecognized compensation information:
Unrecognized compensation cost	$1,737	$2,904	$3,730
Period remaining (in years)	3.3	3.9	3.9
(1) The Black-Scholes inputs include a revaluation of a nonemployee SSAR upon adoption of ASU 2018-07, as well as, SSARs granted during the period.

Summary of SSAR activity

A summary of SSAR activity during and as of December 31, 2020 is presented below:


	Stock Settled Appreciation Rights
	Units	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term
Outstanding, January 1, 2020	1,772,652	$	10.31	9.20
Granted	25,907	9.35		9.42
Exercised	(140,354)	5.94
Forfeited or expired	(68,530)	9.14
Outstanding, December 31, 2020	1,589,675	$	10.73	8.45
Exercisable, December 31, 2020	991,130	$	9.59	8.14

Summary of Status and Changes in Performance-Based Awards

The following table summarizes the status of and changes in the performance-based awards:


	Performance-Based Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Unvested, January 1, 2020	192,248	$	9.88
Granted	41,283	13.55
Vested	0	0.00
Forfeited	(1,900)	13.55
Unvested, December 31, 2020	231,631	$	10.51

Summary of Status and Changes in RSUs and RSAs

The following table summarizes the status of and changes in the RSUs and RSAs:


	Restricted Stock Units and Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Unvested, January 1, 2020	340,780	$	15.35
Granted	293,297	11.84
Vested	(231,845)	15.37
Forfeited	(33,015)	14.62
Unvested, December 31, 2020	369,217	$	12.61

Schedule of Assumptions Using the Black-Scholes Valuation Model for ESPPs

The calculated value of each unit award is estimated at the start of the offering period using a Black-Scholes option valuation model that used the assumptions noted in the following table:


	For the Year Ended December 31,
	2020	2019	2018

Assumptions:
Expected volatility	22.50%	7.60%	7.60%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	0.50	1	1
Risk-free rate	0.17%	2.09%	2.09%

Schedule of Events and the Impact to Equity Based Compensation

Due to the number of events that occurred in 2018, a table of events and the impact to equity based compensation is provided below followed by additional detail under the table:

Change

Change in

Number of

Event

Cumulative

Awards Issued /

Additional

Date

Type

Expense

Exercised

Notes

(Dollars in thousands)

January 2018

EIP Modification:

from performance awards to time-vested awards

1,294

None

Awards were exchanged at “Target” representing 100% of the original award. 282,192 PBSAs were forfeited and replaced with 282,192 RSUs.

May

2018

Chairman Emeritus Agreement:

SSAR and RSU vesting was accelerated

1,124

201,334 SSARs were exercised and 74,280 RSUs vested

101,178 common shares were issued.

October 2018

New Plan Approved:

Existing awards were canceled and regranted under the Omnibus Plan as agreed with certain participants.

–SSARs

None

1,595,430 SSARs were forfeited and regranted under the Omnibus Plan

–RSUs

None

298,254 RSUs were forfeited and regranted under the Omnibus Plan

–PBSAs

None

159,384 PBSAs were forfeited and regranted under the Omnibus Plan

December 2018

Stock Split:

2-for-1 Stock Split occurred

None

All awards, excluding 100,000 SSARs were split

All awards, other than the noted SSARs, were retroactively adjusted for all periods presented to reflect the 2-for-1 split

Operating Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Schedule of Rental Expense


	Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Rental Expense	$	2,871	$	2,526	$	3,323

Schedule of Future Minimum Lease Payments Under Operating Leases

Future minimum lease payments under operating leases were as follows:


	(Dollars in thousands)
2021	$	2,837
2022	2,910
2023	2,956
2024	2,621
2025	2,627
Thereafter	$	16,716

Disclosures about Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements on a Recurring Basis

Fair Value Description

Valuation Hierarchy Level

Where Fair Value Balance Can Be Found

Available-for-sale securities
and equity security

Level 2

Note 3 : Securities

Derivatives

Fair value of the interest rate swaps is obtained from independent pricing services based on quoted market prices for similar derivative contracts.

Level 2

Note 7: Derivatives

Schedule of Fair Value Measurement of Assets on a Nonrecurring Basis


			December 31, 2020
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	55,454	$	—	$	—	$	55,454

Foreclosed assets held-for-sale	$	2,347	$	—	$	—	$	2,347


			December 31, 2019
			Fair Value Measurements Using
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)
	(Dollars in thousands)
Collateral-dependent impaired loans	$	20,889	$	—	$	—	$	20,889

Schedule of Nonrecurring Level 3 Fair Value Measurements

The following tables present quantitative information about unobservable inputs used in nonrecurring Level 3 fair value measurements at December 31, 2020 and 2019:

As of December 31, 2020

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral dependent impaired loans

55,454

Market comparable properties

Marketability discount

1% - 98%

(24%)

Foreclosed assets held-for-sale

2,347

Market comparable properties

Marketability discount

7% - 10%

As of December 31, 2019

Fair Value

Valuation Techniques

Unobservable Inputs

Range
(Weighted Average)

(Dollars in thousands)

Collateral dependent impaired loans

20,889

Market comparable properties

Marketability discount

10% - 15%

(12%)

Schedule of Estimated Fair Value of Financial Instruments

The following tables present the estimated fair values of the Company’s financial instruments at December 31, 2020 and 2019:


	December 31, 2020
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	408,810	$	408,810	$	—	$	—	$	408,810
Available-for-sale securities	654,588		—		654,588		—		654,588
Loans, net of allowance for loan losses	4,366,602		—		—		4,351,970		4,351,970
Restricted equity securities	15,543		—		—		15,543		15,543
Interest receivable	17,236		—		17,236		—		17,236
Equity securities	13,436		—		2,247		11,189		13,436
Derivative assets	24,094		—		24,094		—		24,094
Total	$	5,500,309	$	408,810	$	698,165	$	4,378,702	$	5,485,677
Financial Liabilities
Deposits	$	4,694,740	$	718,459	$	—	$	4,015,792	$	4,734,251
Federal funds purchased and repurchase agreements	2,306		—		2,306		—		2,306
Federal Home Loan Bank advances	293,100		—		309,020		—		309,020
Other borrowings	963		—		2,024		—		2,024
Interest payable	2,163		—		2,163		—		2,163
Derivative liabilities	24,454		—		24,454		—		24,454
Total	$	5,017,726	$	718,459	$	339,967	$	4,015,792	$	5,074,218


	December 31, 2019
	Carrying		Fair Value Measurements
	Amount		Level 1		Level 2		Level 3		Total
	(Dollars in thousands)
Financial Assets
Cash and cash equivalents	$	187,320	$	187,320	$	—	$	—	$	187,320
Available-for-sale securities	739,473		—		739,473		—		739,473
Loans, net of allowance for loan losses	3,795,348		—		—		3,810,818		3,810,818
Restricted equity securities	17,278		—		—		17,278		17,278
Interest receivable	15,716		—		15,716		—		15,716
Equity security	2,161		—		2,161		—		2,161
Derivative assets	9,838		—		9,838		—		9,838
	$	4,767,134	$	187,320	$	767,188	$	3,828,096	$	4,782,604
Financial Liabilities
Deposits	$	3,923,759	$	521,826	$	—	$	3,407,012	$	3,928,838
Federal funds purchased and repurchase agreements	14,921		—		14,921		—		14,921
Federal Home Loan Bank advances	358,743		—		357,859		—		357,859
Other borrowings	921		—		2,147		—		2,147
Interest payable	4,584		—		4,584		—		4,584
Derivative liabilities	9,907		—		9,907		—		9,907
	$	4,312,835	$	521,826	$	389,418	$	3,407,012	$	4,318,256

Commitments and Credit Risk (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments

The Company had the following commitments at December 31, 2020 and 2019:


	December 31, 2020		December 31, 2019
	(Dollars in thousands)
Commitments to originate loans	$	99,596	$	134,652
Standby letters of credit	48,607		39,035
Lines of credit	1,423,038		1,351,873
Future lease commitments	—		20,935
Total	$	1,571,241	$	1,546,495

Parent Company Condensed Financial Statements (Tables)

12 Months Ended

Dec. 31, 2020

Condensed Financial Information Disclosure [Abstract]

Condensed Balance Sheets

The following are the condensed financial statements of CrossFirst Bankshares, Inc. (Parent only) for the periods indicated:


Condensed Balance Sheets

	Year Ended December 31,
	2020		2019
	(Dollars in thousands)
Assets
Investment in consolidated subsidiaries
Banks	$	580,162	$	551,084
Nonbanks	—		870
Cash	46,676		52,478
Other assets	1,756		1,364
Total assets	$	628,594	$	605,796
Liabilities and stockholders’ equity
Trust preferred securities, net	$	963	$	921

Other liabilities	3,203		3,231
Total liabilities	4,166		4,152
Stockholders’ equity

Common stock	523		520
Treasury stock at cost	(6,061)		—
Additional paid-in capital	522,911		519,870
Retained earnings	77,652		64,803

Accumulated other comprehensive income	29,403		16,451
Total stockholders’ equity	624,428		601,644
Total liabilities and stockholders’ equity	$	628,594	$	605,796

Condensed Statements of Income


Condensed Statements of Income

	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Income
Earnings of consolidated subsidiaries	$	13,682	$	28,814	$	24,330

Management fees charged to subsidiaries	8,520		7,500		6,000
Other	(18)		(4)		3
Total income	22,184		36,310		30,333
Expense
Salaries and employee benefits	5,143		4,584		8,139
Occupancy, net	405		275		368

Other	4,220		3,044		3,734
Total expense	9,768		7,903		12,241
Income tax benefit	(185)		(66)		(1,498)
Net income	$	12,601	$	28,473	$	19,590

Condensed Statements of Cash Flows


Condensed Statements of Cash Flows

	For the Year Ended December 31,
	2020		2019		2018
	(Dollars in thousands)
Operating Activities
Net income	$	12,601	$	28,473	$	19,590
Items not requiring (providing) cash
Earnings of consolidated subsidiaries	(13,682)		(28,814)		(24,330)

Share-based incentive compensation	1,917		1,974		2,224
Other adjustments	(412)		5,343		1,367
Net cash provided by (used in) operating activities	424		6,976		(1,149)
Investing Activities
Decrease (increase) in investment in subsidiaries	870		(49,825)		(157,900)

Net cash provided by (used in) investing activities	870		(49,825)		(157,900)
Financing Activities


Redemption of preferred stock	—		(30,000)		—
Dividends paid on preferred stock	—		(700)		(2,100)
Issuance of common stock, net	3		88,324		203,848
Common stock purchased and retired	—		(155)		(11,024)
Open market common share repurchases	(6,061)		—		—
Acquisition of common stock for tax withholding obligations	(1,236)		(245)		(2,132)
Proceeds from employee stock purchase plan	151		547		367
Net decrease in employee receivables	47		117		71

Net cash provided by (used in) financing activities	(7,096)		57,888		189,030
Increase (decrease) in cash	(5,802)		15,039		29,981
Cash at beginning of year	52,478		37,439		7,458
Cash at end of year	$	46,676	$	52,478	$	37,439

Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details)
$ / shares in Units, $ in Thousands

1 Months Ended

12 Months Ended

Sep. 17, 2019

USD ($)

$ / shares

Aug. 19, 2019

USD ($)

$ / shares

Dec. 21, 2018

Dec. 31, 2018

USD ($)

Dec. 31, 2020

USD ($)

segment

Dec. 31, 2017

USD ($)

Dec. 31, 2019

USD ($)

Jan. 01, 2019

USD ($)

Subsidiary, Sale of Stock [Line Items]

Stock split ratio

Number of reportable segments | segment

Cash and cash equivalents held at bank

$ 319,000

Required reserve

Cash collateral

32,000

Cash in excess of federally insured limits

44,000

Cumulative effect adjustment

$ 490,336

624,428

$ 287,147

$ 601,644

Deferred tax assets

14,813

13,782

Retained earnings

77,652

64,803

Reclassification of stranded tax effects due to Tax Cuts and Jobs Act

1,000

Affiliated Entity

Subsidiary, Sale of Stock [Line Items]

Related party loans

16,000

Deposits from related parties

55,000

66,000

IPO

Subsidiary, Sale of Stock [Line Items]

Shares sold and issued (in shares) | shares

5,750,000

Price of stock per share (in dollars per share) | $ / shares

$ 14.50

Total proceeds on sale of stock

$ 76,000

Stockholders Public Offering

Subsidiary, Sale of Stock [Line Items]

Shares sold and issued (in shares) | shares

1,261,589

Price of stock per share (in dollars per share) | $ / shares

$ 14.50

Underwriters' Overallotment Option

Subsidiary, Sale of Stock [Line Items]

Shares sold and issued (in shares) | shares

844,362

Price of stock per share (in dollars per share) | $ / shares

$ 14.50

Total proceeds on sale of stock

$ 11,000

Accounting Standards Update 2018-07

Subsidiary, Sale of Stock [Line Items]

Deferred tax assets

$ 306

Retained earnings

$ 306

Accounting Standards Update 2018-07 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

306

Accounting Standards Update 2016-01 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

Non-employees

Subsidiary, Sale of Stock [Line Items]

Outstanding awards (in shares) | shares

216,960

Non-employees | Performance Based Restricted Stock Units

Subsidiary, Sale of Stock [Line Items]

Outstanding awards (in shares) | shares

116,960

Accumulated Other Comprehensive Income (Loss)

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

(3,010)

29,403

7,026

16,451

Accumulated Other Comprehensive Income (Loss) | Accounting Standards Update 2016-01 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

$ 69

Retained Earnings

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

^[1]

38,371

77,652

23,694

64,803

Retained Earnings | Accounting Standards Update 2018-07 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

(1,853)

^[1]

(2,000)

Retained Earnings | Accounting Standards Update 2016-01 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

(69)

^[1]

(69)

Additional Paid-in Capital

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

454,512

522,911

$ 256,108

$ 519,870

Additional Paid-in Capital | Accounting Standards Update 2018-07 | Cumulative Effect, Period of Adoption, Adjustment

Subsidiary, Sale of Stock [Line Items]

Cumulative effect adjustment

$ 2,159

$ 2,000

LIBOR

Subsidiary, Sale of Stock [Line Items]

Loans tied to LIBOR

$ 1,000,000

[1]	(1) Share data has been adjusted to reflect a 2-for-1 stock split effected in the form of a dividend on December 21, 2018.

Nature of Operations and Summary of Significant Accounting Policies - Property Plant Equipment Useful Lives (Details)	12 Months Ended
	Dec. 31, 2020
Building and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	35 years
Building and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	40 years
Leasehold improvements \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Leasehold improvements \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	15 years
Furniture and fixtures \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings per Share
Net income	$ 12,601	$ 28,473	$ 19,590
Less: preferred stock dividends	0	175	2,100
Net income available to common stockholders	$ 12,601	$ 28,298	$ 17,490
Weighted average common shares (in shares)	52,070,624	47,679,184	36,422,612
Earnings per share (in dollars per share)	$ 0.24	$ 0.59	$ 0.48
Dilutive Earnings Per Share
Net income available to common stockholders	$ 12,601	$ 28,298	$ 17,490
Weighted average common shares (in shares)	52,070,624	47,679,184	36,422,612
Effect of dilutive shares (in shares)	477,923	896,951	1,069,955
Weighted average dilutive common shares (in shares)	52,548,547	48,576,135	37,492,567
Diluted earnings per share (in dollars per share)	$ 0.24	$ 0.58	$ 0.47
Stock-based awards not included because to do so would be antidilutive (in shares)	1,014,639	521,659	407,852

Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available-for-sale securities
Amortized Cost	$ 615,654	$ 717,682
Gross Unrealized Gains	39,007	22,377
Gross Unrealized Losses	73	586
Approximate Fair Value	654,588	739,473
Mortgage-backed - GSE residential
Available-for-sale securities
Amortized Cost	104,839	151,037
Gross Unrealized Gains	4,277	1,668
Gross Unrealized Losses	0	193
Approximate Fair Value	109,116	152,512
Collateralized mortgage obligations - GSE residential
Available-for-sale securities
Amortized Cost	52,070	128,876
Gross Unrealized Gains	984	625
Gross Unrealized Losses	42	289
Approximate Fair Value	53,012	129,212
State and political subdivisions
Available-for-sale securities
Amortized Cost	454,486	436,448
Gross Unrealized Gains	33,642	19,996
Gross Unrealized Losses	31	104
Approximate Fair Value	488,097	456,340
Corporate bonds
Available-for-sale securities
Amortized Cost	4,259	1,321
Gross Unrealized Gains	104	88
Gross Unrealized Losses	0	0
Approximate Fair Value	$ 4,363	$ 1,409

Securities - Available-for-sale Securities Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Securities pledged as collateral	$ 16	$ 41

Securities - Gross Realized Gains and Losses from Sales or Maturities of Available-for-Sale Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
AFS debt securities, gross realized gains	$ 1,788,000	$ 1,043,000	$ 2,083,000
AFS debt securities, gross realized losses	84,000	56,000	1,545,000
AFS debt securities, net realized gain	1,704,000	$ 987,000	$ 538,000
Gross realized gains on available-for-sale securities included an other-than-temporary impaired municipal security settled in 2020	$ 75,000

Securities - Amortized Cost, Fair Value and Weighted Average Yield by Maturity Date (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized cost
Within one year	$ 653	$ 523
After one to five years	8,067	6,050
After five to ten years	68,896	55,924
After ten years	538,038	655,185
Amortized Cost	615,654	717,682
Estimated fair value
Within one year	657	523
After one to five years	8,265	6,169
After five to ten years	74,772	59,345
After ten years	570,894	673,436
Total	$ 654,588	$ 739,473
Weighted average yield
Within one year	8.18%	9.38%
After one to five years	5.36%	5.76%
After five to ten years	3.44%	3.60%
After ten years	2.57%	2.85%
Total	2.71%	2.94%
Mortgage-backed - GSE residential
Amortized cost
Within one year	$ 0	$ 0
After one to five years	48	0
After five to ten years	199	329
After ten years	104,592	150,708
Amortized Cost	104,839	151,037
Estimated fair value
Within one year	0	0
After one to five years	51	0
After five to ten years	212	341
After ten years	108,853	152,171
Total	$ 109,116	$ 152,512
Weighted average yield
Within one year	0.00%	0.00%
After one to five years	4.57%	0.00%
After five to ten years	3.95%	4.01%
After ten years	1.96%	2.57%
Total	1.96%	2.58%
Collateralized mortgage obligations - GSE residential
Amortized cost
Within one year	$ 0	$ 0
After one to five years	0	0
After five to ten years	2,483	2,527
After ten years	49,587	126,349
Amortized Cost	52,070	128,876
Estimated fair value
Within one year	0	0
After one to five years	0	0
After five to ten years	2,721	2,594
After ten years	50,291	126,618
Total	$ 53,012	$ 129,212
Weighted average yield
Within one year	0.00%	0.00%
After one to five years	0.00%	0.00%
After five to ten years	2.77%	2.77%
After ten years	1.02%	2.47%
Total	1.11%	2.47%
State and political subdivisions
Amortized cost
Within one year	$ 653	$ 523
After one to five years	7,661	6,050
After five to ten years	62,313	51,747
After ten years	383,859	378,128
Amortized Cost	454,486	436,448
Estimated fair value
Within one year	657	523
After one to five years	7,846	6,169
After five to ten years	67,844	55,001
After ten years	411,750	394,647
Total	$ 488,097	$ 456,340
Weighted average yield
Within one year	8.18%	9.38%
After one to five years	5.40%	5.76%
After five to ten years	3.40%	3.59%
After ten years	2.94%	3.08%
Total	3.05%	3.19%
Corporate bonds
Amortized cost
Within one year	$ 0	$ 0
After one to five years	358	0
After five to ten years	3,901	1,321
After ten years	0	0
Amortized Cost	4,259	1,321
Estimated fair value
Within one year	0	0
After one to five years	368	0
After five to ten years	3,995	1,409
After ten years	0	0
Total	$ 4,363	$ 1,409
Weighted average yield
Within one year	0.00%	0.00%
After one to five years	4.70%	0.00%
After five to ten years	4.54%	5.68%
After ten years	0.00%	0.00%
Total	4.55%	5.68%

Securities - Gross Unrealized Losses Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt securities at an amount less than historical cost	$ 18,483	$ 108,066
Unrealized Loss Position \| Available-for-sale Investment Portfolio
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt securities at an amount less than historical cost, percentage	3.00%	15.00%

Securities - Gross Unrealized Losses (Details) $ in Thousands	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Less than 12 Months
Fair Value	$ 18,458	$ 78,881
Unrealized Losses	$ 73	$ 339
Number of Securities \| security	13	21
12 Months or More
Fair Value	$ 25	$ 29,185
Unrealized Losses	$ 0	$ 247
Number of Securities \| security	1	15
Total
Fair Value	$ 18,483	$ 108,066
Unrealized Losses	$ 73	$ 586
Number of Securities \| security	14	36
Mortgage-backed - GSE residential
Less than 12 Months
Fair Value	$ 0	$ 7,959
Unrealized Losses	$ 0	$ 38
Number of Securities \| security	0	2
12 Months or More
Fair Value	$ 0	$ 20,396
Unrealized Losses	$ 0	$ 155
Number of Securities \| security	0	4
Total
Fair Value	$ 0	$ 28,355
Unrealized Losses	$ 0	$ 193
Number of Securities \| security	0	6
Collateralized mortgage obligations - GSE residential
Less than 12 Months
Fair Value	$ 9,933	$ 48,980
Unrealized Losses	$ 42	$ 199
Number of Securities \| security	5	7
12 Months or More
Fair Value	$ 0	$ 8,622
Unrealized Losses	$ 0	$ 90
Number of Securities \| security	0	9
Total
Fair Value	$ 9,933	$ 57,602
Unrealized Losses	$ 42	$ 289
Number of Securities \| security	5	16
State and political subdivisions
Less than 12 Months
Fair Value	$ 8,525	$ 21,412
Unrealized Losses	$ 31	$ 102
Number of Securities \| security	8	11
12 Months or More
Fair Value	$ 25	$ 167
Unrealized Losses	$ 0	$ 2
Number of Securities \| security	1	2
Total
Fair Value	$ 8,550	$ 21,579
Unrealized Losses	$ 31	$ 104
Number of Securities \| security	9	13
Corporate bonds
Less than 12 Months
Fair Value	$ 0	$ 530
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	1
12 Months or More
Fair Value	$ 0	$ 0
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	0
Total
Fair Value	$ 0	$ 530
Unrealized Losses	$ 0	$ 0
Number of Securities \| security	0	1

Securities - Other Than Temporary Impairment Losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Other-than-temporary impairment loss	$ 0	$ 0	$ 0

Securities - Equity Securities Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)
Mutual Fund
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 2
Private Equity Security
Debt and Equity Securities, FV-NI [Line Items]
Equity securities	$ 11
Acquired privately-held security, term	5 years
Acquired privately-held security, extension term	5 years

Securities - Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Net gains recognized during the period on equity securities	$ 46	$ 62
Less: net gains recognized during the period on equity securities sold during the period	0	0
Unrealized gain recognized during the reporting period on equity securities still held at the reporting date	$ 46	$ 62

Loans and Allowance for Loan Leases - Categories of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 4,455,100	$ 3,861,707
Less: Allowance for loan losses	75,295	56,896	$ 37,826	$ 26,091
Less: Net deferred loan fees and costs	13,203	9,463
Net loans	4,366,602	3,795,348
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,338,757	1,356,817
Less: Allowance for loan losses	24,693	35,864	16,584	11,378
Energy
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	345,233	408,573
Less: Allowance for loan losses	18,341	6,565	10,262	7,726
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,179,534	1,024,041
Less: Allowance for loan losses	22,354	8,085	6,755	4,668
Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	563,144	628,418
Less: Allowance for loan losses	3,612	3,516	2,475	1,200
Residential and multifamily real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	680,932	398,695
Less: Allowance for loan losses	5,842	2,546	1,464	905
Paycheck Protection Program ("PPP")
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	292,230	0
Less: Allowance for loan losses	0	0	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	55,270	45,163
Less: Allowance for loan losses	$ 453	$ 320	$ 286	$ 214

Loans and Allowance for Loan Leases - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses
Beginning balance	$ 56,896	$ 37,826	$ 26,091
Provision charged to expense	56,700	29,900	13,500
Charged-off	(38,429)	(11,423)	(2,303)
Recoveries	128	593	538
Ending balance	75,295	56,896	37,826
Ending balance
Individually evaluated for impairment	9,533	22,298
Collectively evaluated for impairment	65,762	34,598
Allocated to loans
Individually evaluated for impairment	121,614	93,500
Collectively evaluated for impairment	4,333,486	3,768,207
Total Loans Receivable	4,455,100	3,861,707
Commercial
Allowance for loan losses
Beginning balance	35,864	16,584	11,378
Provision charged to expense	19,959	27,219	5,720
Charged-off	(31,205)	(7,954)	(976)
Recoveries	75	15	462
Ending balance	24,693	35,864	16,584
Ending balance
Individually evaluated for impairment	1,115	19,942
Collectively evaluated for impairment	23,578	15,922
Allocated to loans
Individually evaluated for impairment	44,678	70,876
Collectively evaluated for impairment	1,294,079	1,285,941
Total Loans Receivable	1,338,757	1,356,817
Energy
Allowance for loan losses
Beginning balance	6,565	10,262	7,726
Provision charged to expense	16,867	(1,273)	3,717
Charged-off	(5,091)	(3,000)	(1,256)
Recoveries	0	576	75
Ending balance	18,341	6,565	10,262
Ending balance
Individually evaluated for impairment	3,370	1,949
Collectively evaluated for impairment	14,971	4,616
Allocated to loans
Individually evaluated for impairment	26,045	9,744
Collectively evaluated for impairment	319,188	398,829
Total Loans Receivable	345,233	408,573
Commercial real estate
Allowance for loan losses
Beginning balance	8,085	6,755	4,668
Provision charged to expense	15,853	1,771	2,087
Charged-off	(1,584)	(441)	0
Recoveries	0	0	0
Ending balance	22,354	8,085	6,755
Ending balance
Individually evaluated for impairment	5,048	210
Collectively evaluated for impairment	17,306	7,875
Allocated to loans
Individually evaluated for impairment	44,318	10,492
Collectively evaluated for impairment	1,135,216	1,013,549
Total Loans Receivable	1,179,534	1,024,041
Construction and land development
Allowance for loan losses
Beginning balance	3,516	2,475	1,200
Provision charged to expense	96	1,041	1,275
Charged-off	0	0	0
Recoveries	0	0	0
Ending balance	3,612	3,516	2,475
Ending balance
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,612	3,516
Allocated to loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	563,144	628,418
Total Loans Receivable	563,144	628,418
Residential and multifamily real estate
Allowance for loan losses
Beginning balance	2,546	1,464	905
Provision charged to expense	3,700	1,090	559
Charged-off	(445)	(8)	0
Recoveries	41	0	0
Ending balance	5,842	2,546	1,464
Ending balance
Individually evaluated for impairment	0	197
Collectively evaluated for impairment	5,842	2,349
Allocated to loans
Individually evaluated for impairment	6,329	2,388
Collectively evaluated for impairment	674,603	396,307
Total Loans Receivable	680,932	398,695
Paycheck Protection Program ("PPP")
Allowance for loan losses
Beginning balance	0	0	0
Provision charged to expense	0	0	0
Charged-off	0	0	0
Recoveries	0	0	0
Ending balance	0	0	0
Ending balance
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Allocated to loans
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	292,230	0
Total Loans Receivable	292,230	0
Consumer
Allowance for loan losses
Beginning balance	320	286	214
Provision charged to expense	225	52	142
Charged-off	(104)	(20)	(71)
Recoveries	12	2	1
Ending balance	453	320	$ 286
Ending balance
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	453	320
Allocated to loans
Individually evaluated for impairment	244	0
Collectively evaluated for impairment	55,026	45,163
Total Loans Receivable	$ 55,270	$ 45,163

Loans and Allowance for Loan Leases - Loan Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 44,832	$ 48,834
Current	4,410,268	3,812,873
Total Loans Receivable	4,455,100	3,861,707
Loans >= 90 Days and Accruing	1,024	4,591
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	10,137	6,292
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,941	530
90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	26,754	42,012
Commercial
Financing Receivable, Past Due [Line Items]
Total Past Due	19,997	32,278
Current	1,318,760	1,324,539
Total Loans Receivable	1,338,757	1,356,817
Loans >= 90 Days and Accruing	0	37
Commercial \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	8,497	1,091
Commercial \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	264	276
Commercial \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	11,236	30,911
Energy
Financing Receivable, Past Due [Line Items]
Total Past Due	7,173	6,933
Current	338,060	401,640
Total Loans Receivable	345,233	408,573
Loans >= 90 Days and Accruing	372	53
Energy \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	2,340
Energy \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Energy \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	7,173	4,593
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	12,565	4,905
Current	1,166,969	1,019,136
Total Loans Receivable	1,179,534	1,024,041
Loans >= 90 Days and Accruing	0	4,501
Commercial real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	63	316
Commercial real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	7,677	0
Commercial real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	4,825	4,589
Construction and land development
Financing Receivable, Past Due [Line Items]
Total Past Due	0	196
Current	563,144	628,222
Total Loans Receivable	563,144	628,418
Loans >= 90 Days and Accruing	0	0
Construction and land development \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	196
Construction and land development \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Construction and land development \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential and multifamily real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	5,097	4,266
Current	675,835	394,429
Total Loans Receivable	680,932	398,695
Loans >= 90 Days and Accruing	652	0
Residential and multifamily real estate \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,577	2,347
Residential and multifamily real estate \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential and multifamily real estate \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	3,520	1,919
Paycheck Protection Program ("PPP")
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	292,230	0
Total Loans Receivable	292,230	0
Loans >= 90 Days and Accruing	0	0
Paycheck Protection Program ("PPP") \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program ("PPP") \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Paycheck Protection Program ("PPP") \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	0	256
Current	55,270	44,907
Total Loans Receivable	55,270	45,163
Loans >= 90 Days and Accruing	0	0
Consumer \| 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	2
Consumer \| 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	254
Consumer \| 90 Days or More
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 0	$ 0

Loans and Allowance for Loan Leases - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Recorded Balance
Total	$ 121,614	$ 93,500
Unpaid Principal Balance
Total	145,680	101,500
Specific Allowance	9,533	22,298
Interest Income Recognized
Total	3,557	3,212
Commercial
Recorded Balance
Loans without a specific valuation	36,111	35,846
Loans with a specific valuation	8,567	35,030
Total	44,678	70,876
Unpaid Principal Balance
Loans without a specific valuation	50,245	35,846
Loans with a specific valuation	8,567	40,030
Total	58,812	75,876
Specific Allowance	1,115	19,942
Average Investment Impaired Loans
Loans without a specific valuation	29,591	44,646
Loans with a specific valuation	8,637	39,688
Total	38,228	84,334
Interest Income Recognized
Loans without a specific valuation	1,143	1,549
Loans with a specific valuation	249	460
Total	1,392	2,009
Energy
Recorded Balance
Loans without a specific valuation	3,864	2,864
Loans with a specific valuation	22,181	6,880
Total	26,045	9,744
Unpaid Principal Balance
Loans without a specific valuation	6,677	2,864
Loans with a specific valuation	27,460	9,880
Total	34,137	12,744
Specific Allowance	3,370	1,949
Average Investment Impaired Loans
Loans without a specific valuation	6,710	4,381
Loans with a specific valuation	23,823	10,547
Total	30,533	14,928
Interest Income Recognized
Loans without a specific valuation	53	199
Loans with a specific valuation	542	264
Total	595	463
Commercial real estate
Recorded Balance
Loans without a specific valuation	10,079	9,464
Loans with a specific valuation	34,239	1,028
Total	44,318	10,492
Unpaid Principal Balance
Loans without a specific valuation	11,663	9,464
Loans with a specific valuation	34,239	1,028
Total	45,902	10,492
Specific Allowance	5,048	210
Average Investment Impaired Loans
Loans without a specific valuation	11,952	12,907
Loans with a specific valuation	27,980	1,037
Total	39,932	13,944
Interest Income Recognized
Loans without a specific valuation	390	669
Loans with a specific valuation	1,035	47
Total	1,425	716
Construction and land development
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Average Investment Impaired Loans
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Interest Income Recognized
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Residential and multifamily real estate
Recorded Balance
Loans without a specific valuation	6,329	2,139
Loans with a specific valuation	0	249
Total	6,329	2,388
Unpaid Principal Balance
Loans without a specific valuation	6,585	2,139
Loans with a specific valuation	0	249
Total	6,585	2,388
Specific Allowance	0	197
Average Investment Impaired Loans
Loans without a specific valuation	6,315	2,140
Loans with a specific valuation	0	249
Total	6,315	2,389
Interest Income Recognized
Loans without a specific valuation	145	14
Loans with a specific valuation	0	10
Total	145	24
Paycheck Protection Program ("PPP")
Recorded Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Unpaid Principal Balance
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Specific Allowance	0	0
Average Investment Impaired Loans
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Interest Income Recognized
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	0	0
Consumer
Recorded Balance
Loans without a specific valuation	244	0
Loans with a specific valuation	0	0
Total	244	0
Unpaid Principal Balance
Loans without a specific valuation	244	0
Loans with a specific valuation	0	0
Total	244	0
Specific Allowance	0	0
Average Investment Impaired Loans
Loans without a specific valuation	250	0
Loans with a specific valuation	0	0
Total	250	0
Interest Income Recognized
Loans without a specific valuation	0	0
Loans with a specific valuation	0	0
Total	$ 0	$ 0

Loans and Allowance for Loan Leases - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	$ 75,051	$ 39,675
Commercial
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	26,691	32,130
Energy
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	25,927	4,540
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	19,088	1,063
Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	0	0
Residential and multifamily real estate
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	3,101	1,942
Paycheck Protection Program ("PPP")
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	0	0
Consumer
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	$ 244	$ 0

Loans and Allowance for Loan Leases - Troubled Debt Restructuring Loans (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) loan contract	Dec. 31, 2019 USD ($) loan contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 53,067,000	$ 34,766,000
Number of Loans \| loan	17	12
Outstanding Balance	$ 63,095,000	$ 39,543,000
Balance 90 Days Past Due at Any Time During Previous 12 Months	5,489,000	831,000
Total specific valuation allowance for restructured loans	4,000,000	18,000,000
Troubled debt restructurings, charge-offs	26,000,000	5,000,000
Troubled debt restructurings, recoveries	0	0
Interest income recognized on TDRs	1,000,000	1,000,000
Gross interest income if loan had been current in accordance with original terms	$ 2,000,000	$ 2,000,000
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	7	7
Outstanding Balance	$ 22,759,000	$ 31,770,000
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 2,776,000	$ 831,000
Number of TDR loans modified within the previous twelve months default \| loan		1
Commercial \| One Commercial Borrower
Financing Receivable, Troubled Debt Restructuring [Line Items]
Balance 90 Days Past Due at Any Time During Previous 12 Months		$ 28,000,000
Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	4	2
Outstanding Balance	$ 11,053,000	$ 2,864,000
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 2,713,000	$ 0
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	4	3
Outstanding Balance	$ 26,038,000	$ 4,909,000
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 0	$ 0
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0
Outstanding Balance	$ 0	$ 0
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 0	$ 0
Residential and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	2	0
Outstanding Balance	$ 3,245,000	$ 0
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 0	$ 0
Paycheck Protection Program ("PPP")
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| contract	0	0
Outstanding Balance	$ 0	$ 0
Balance 90 Days Past Due at Any Time During Previous 12 Months	$ 0	$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0
Outstanding Balance	$ 0	$ 0
Balance 90 Days Past Due at Any Time During Previous 12 Months	0	0
Debt forgiveness \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	17,297,000	0
Deferred payment \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	21,210,000	0
Reduction of monthly payment \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	1,224,000	994,000
Reduction of monthly payment \| Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	7,825,000	0
Reduction of monthly payment \| Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	3,767,000
Extension of maturity date \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	0	30,005,000
Extension of maturity date \| Energy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	2,340,000	0
Interest rate reduction \| Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total troubled debt restructurings	$ 3,171,000	$ 0

Premises and Equipment - Major Classifications of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 93,470	$ 89,417
Less: accumulated depreciation	22,961	19,207
Premises and equipment, net	70,509	70,210
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	7,384	7,384
Building and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	62,331	59,500
Construction in progress
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	95	524
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	14,073	12,851
Equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 9,587	$ 9,158

Goodwill and Core Deposit Intangible - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 7,000	$ 7,397	$ 0	$ 0
Finite-lived intangible asset, remaining amortization period		3 years

Goodwill and Core Deposit Intangible - Carrying Basis and Accumulated Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Gross Carrying Amount	$ 7,397	$ 7,397
Goodwill, Impairment	7,397	0
Goodwill, Net Carrying Amount	0	7,397
Finite-Lived Intangible Assets, Net [Abstract]
Gross Carrying Amount	1,014	1,014
Accumulated Amortization	806	717
Net Carrying Amount	208	297
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross Carrying Amount	8,411	8,411
Accumulated Amortization	806	717
Net Carrying Amount	$ 208	$ 7,694

Derivatives and Hedging Activities - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Swap fee income		$ (204)	$ 2,753	$ 285
Derivative instruments not designated as hedging instruments, loss		$ 290
Change in Accounting Method Accounted for as Change in Estimate
Derivative [Line Items]
Swap fee income	$ 800

Derivatives and Hedging Activities - Derivatives Not Designated as Hedging Instruments (Details) - Back-to-back swaps - Not Designated as Hedging Instrument $ in Thousands	Dec. 31, 2020 USD ($) derivative	Dec. 31, 2019 USD ($) derivative
Derivative [Line Items]
Number of Instruments \| derivative	56	56
Notional Amount \| $	$ 515,567	$ 380,050

Derivatives and Hedging Activities - Fair Value of Derivatives (Details) - Not Designated as Hedging Instrument - Interest rate products - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other assets
Derivative [Line Items]
Asset Derivatives	$ 24,094	$ 9,838
Other liabilities
Derivative [Line Items]
Liability Derivatives	$ 24,454	$ 9,907

Interest-bearing Time Deposits (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Maturities of Time Deposits [Abstract]
Interest-bearing time deposits in denominations of $250,000 or more	$ 524	$ 692
Brokered deposits	188	392
CDARS	$ 75	$ 42

Borrowing Arrangements - Borrowings Summary (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 2010	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2012	Sep. 30, 2005
Debt Instrument [Line Items]
Balance		$ 296,369	$ 374,585
Securities sold under agreements to repurchase, average daily balance		32,000	44,000
Securities pledged for repurchase agreements		6,000	37,000
Borrowings		963
FHLB advances
Debt Instrument [Line Items]
Balance		$ 293,100	$ 358,743
Rate		1.78%	1.84%
Maximum balance at any end of month		$ 450,659	$ 358,743
FHLB line of credit
Debt Instrument [Line Items]
Balance		0	0
Maximum balance at any end of month		20,000	30,000
Trust preferred security
Debt Instrument [Line Items]
Balance		$ 963	$ 921
Rate		1.96%	3.63%
Maximum balance at any end of month		$ 963	$ 921
Fair value of assumed liability	$ 1,000
Borrowings					$ 4,000
Decrease in principal balance				$ 1,500
Decrease in recorded balance				400
Difference between recorded amount and contract value				$ 2,500
Repurchase agreements
Debt Instrument [Line Items]
Balance		$ 2,306	$ 14,921
Rate		0.15%	1.00%
Maximum balance at any end of month		$ 57,259	$ 72,048
Maturities term		1 day
Federal funds purchased
Debt Instrument [Line Items]
Balance		$ 0	0
Maximum balance at any end of month		$ 30,000	25,000
Maturities term		1 day
Federal Reserve Borrowing
Debt Instrument [Line Items]
Balance		$ 0	0
Maximum balance at any end of month		$ 15,000	$ 0
Minimum
Debt Instrument [Line Items]
FHLB advances, fixed rate		0.37%
Maximum
Debt Instrument [Line Items]
FHLB advances, fixed rate		2.88%
LIBOR \| Trust preferred security
Debt Instrument [Line Items]
Basis spread on variable rate				1.74%

Borrowing Arrangements - Borrowing Capacity (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Unused Federal Reserve borrowing capacity	$ 435,805	$ 287,857
Total FHLB borrowing capacity
Debt Instrument [Line Items]
Borrowing capacity	518,191	490,218
FHLB borrowing capacity relating to loans
Debt Instrument [Line Items]
Borrowing capacity	518,191	490,218
FHLB borrowing capacity relating to securities
Debt Instrument [Line Items]
Borrowing capacity	$ 0	$ 0

Borrowing Arrangements - Borrowing Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Time deposits
Within One Year	$ 867,927
One to Two Years	114,963
Two to Three Years	44,392
Three to Four Years	15,501
Four to Five Years	699
After Five Years	0
Total	1,043,482	$ 1,239,746
Fed funds purchased & repurchase agreements	2,306	14,921
FHLB borrowings
Within One Year	16,500
One to Two Years	21,500
Two to Three Years	35,000
Three to Four Years	0
Four to Five Years	5,100
After Five Years	215,000
Total	293,100	$ 358,743
Trust preferred securities
Within One Year	0
One to Two Years	0
Two to Three Years	0
Three to Four Years	0
Four to Five Years	0
After Five Years	963
Total	963
Total
Within One Year	886,733
One to Two Years	136,463
Two to Three Years	79,392
Three to Four Years	15,501
Four to Five Years	5,799
After Five Years	215,963
Total	1,339,851
Contract value	$ 2,600

Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Taxes currently payable (receivable)		$ 7,970	$ 7,624	$ (2,155)
Deferred income tax liability		(5,257)	(3,486)	(239)
Income tax expense (benefit)	$ (2,394)	$ 2,713	$ 4,138	$ (2,394)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Computed at the statutory rate (21%)	$ 3,611	$ 3,216	$ 6,848
Increase (decrease) resulting from
Tax-exempt income	(3,508)	(3,109)	(2,913)
Nondeductible expenses	380	194	356
State tax credit	(3,129)	0	(1,361)
State income tax expense (benefit)	687	679	1,288
Equity-based compensation	(445)	179	(88)
Goodwill impairment	0	1,553	0
Other adjustments	10	1	8
Income tax expense (benefit)	$ (2,394)	$ 2,713	$ 4,138	$ (2,394)

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2018
Tax Credit Carryforward [Line Items]
Tax benefit	$ 2,000
Federal tax expense	362
Deferred tax asset	3,287	$ 2,621
Operating loss annual usage limit		180
Tax Year 2019
Tax Credit Carryforward [Line Items]
Deferred tax asset	1,000	2,000
State Tax Credit
Tax Credit Carryforward [Line Items]
Tax credit	$ 2,000		$ 3,000
Federal
Tax Credit Carryforward [Line Items]
Operating loss carry-forwards		$ 1,000

Income Taxes - Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets
Allowance for loan losses	$ 18,124	$ 13,928
Lease incentive	564	294
Impairment of available-for-sale securities	0	493
Loan fees	3,178	2,317
Accrued expenses	2,128	2,131
Deferred compensation	2,474	2,444
State tax credit	2,621	3,287
Other	946	420
Total deferred tax asset	30,035	25,314
Deferred tax liability
Net unrealized gain on securities available-for-sale	(9,531)	(5,339)
FHLB stock basis	(1,209)	(996)
Premises and equipment	(2,881)	(3,620)
Other	(1,601)	(1,577)
Total deferred tax liability	(15,222)	(11,532)
Net deferred tax asset	$ 14,813	$ 13,782

Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities		$ 1,704	$ 987	$ 538
Income tax expense	$ (2,394)	2,713	4,138	(2,394)
Net Income		12,601	28,473	19,590
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain on sale of available-for-sale debt securities		1,704	987	538
Income tax expense		415	242	132
Net Income		$ 1,289	$ 745	$ 406

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

Regulatory Matters (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Total Capital to Risk-Weighted Assets
Actual, amount	$ 656,806	$ 633,228
Actual, ratio	0.131	0.134
Minimum capital required, Basel III, amount	$ 527,486	$ 495,095
Minimum capital required, Basel III, ratio	0.105	0.105
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 593,865	$ 576,332
Actual, ratio	0.118	0.122
Minimum capital required, Basel III, amount	$ 427,012	$ 400,791
Minimum capital required, Basel III, ratio	0.085	0.085
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 592,902	$ 575,411
Actual, ratio	0.118	0.122
Minimum capital required, Basel III, amount	$ 351,657	$ 330,063
Minimum capital required, Basel III, ratio	7.00%	7.00%
Tier I Capital to Average Assets
Actual, amount	$ 593,865	$ 576,332
Actual, ratio	0.108	0.121
Minimum capital required, Basel III, amount	$ 219,550	$ 191,093
Minimum capital required, Basel III, ratio	0.040	0.040
Bank
Total Capital to Risk-Weighted Assets
Actual, amount	$ 611,533	$ 581,600
Actual, ratio	0.122	0.123
Minimum capital required, Basel III, amount	$ 527,217	$ 494,954
Minimum capital required, Basel III, ratio	0.105	0.105
Required to be considered well capitalized, amount	$ 502,111	$ 471,385
Required to be considered well capitalized, ratio	0.100	0.100
Tier I Capital to Risk-Weighted Assets
Actual, amount	$ 548,615	$ 524,704
Actual, ratio	0.109	0.111
Minimum capital required, Basel III, amount	$ 426,794	$ 400,677
Minimum capital required, Basel III, ratio	0.085	0.085
Required to be considered well capitalized, amount	$ 401,689	$ 377,108
Required to be considered well capitalized, ratio	0.080	0.080
Common Equity Tier 1 to Risk-Weighted Assets
Actual, amount	$ 548,615	$ 524,704
Actual, ratio	0.109	0.111
Minimum capital required, Basel III, amount	$ 351,478	$ 329,970
Minimum capital required, Basel III, ratio	7.00%	7.00%
Required to be considered well capitalized, amount	$ 326,372	$ 306,400
Required to be considered well capitalized, ratio	6.50%	6.50%
Tier I Capital to Average Assets
Actual, amount	$ 548,615	$ 524,704
Actual, ratio	0.100	0.110
Minimum capital required, Basel III, amount	$ 219,441	$ 191,170
Minimum capital required, Basel III, ratio	0.040	0.040
Required to be considered well capitalized, amount	$ 274,302	$ 238,963
Required to be considered well capitalized, ratio	0.050	0.050

Employee Benefit Plan (Details) - USD ($) $ in Thousands	12 Months Ended
Employee Benefit Plan (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Company contributions	$ 1,000	$ 1,000	$ 891
First 1% of Employees Salary Deferral Amounts
Defined Benefit Plan Disclosure [Line Items]
Company contributions to the plan, percentage	100.00%	100.00%	100.00%
Percent of employees' gross pay	1.00%	1.00%	1.00%
Salary Deferral Amounts Over 1%
Defined Benefit Plan Disclosure [Line Items]
Company contributions to the plan, percentage	50.00%	50.00%	50.00%
Percent of employees' gross pay	1.00%	1.00%	1.00%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Percent of employees' gross pay	6.00%	6.00%	6.00%

Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Noninterest income subject to ASU 2014-09
Total noninterest income from contracts with customers	$ 8,360	$ 3,227
Noninterest income not subject to ASU 2014-09
Other noninterest income	3,373	5,480
Total non-interest income	11,733	8,707	$ 6,083
Service charges and fees (rebates) on customer accounts
Noninterest income subject to ASU 2014-09
Total noninterest income from contracts with customers	2,803	604	444
ATM and credit card interchange income
Noninterest income subject to ASU 2014-09
Total noninterest income from contracts with customers	4,379	1,785	$ 1,224
International fees
Noninterest income subject to ASU 2014-09
Total noninterest income from contracts with customers	1,091	716
Other fees
Noninterest income subject to ASU 2014-09
Total noninterest income from contracts with customers	$ 87	$ 122

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Stock-Based Compensation - Narrative (Details)

1 Months Ended

3 Months Ended

12 Months Ended

Dec. 21, 2018

Dec. 31, 2018

USD ($)

May 31, 2018

USD ($)

Jan. 31, 2018

USD ($)

participant

Dec. 31, 2018

USD ($)

Dec. 31, 2020

USD ($)

market_measure

$ / shares

Dec. 31, 2019

USD ($)

Dec. 31, 2018

USD ($)

$ / shares

Dec. 31, 2016

Jan. 01, 2019

USD ($)

Dec. 31, 2017

USD ($)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Stock split ratio

Compensation expense

$ 4,604,000

$ 4,363,000

$ 4,724,000

Cumulative effect adjustment

$ (490,336,000)

(490,336,000)

$ (624,428,000)

(601,644,000)

$ (490,336,000)

$ (287,147,000)

Omnibus Plan

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Shares authorized for future issuance (in shares) | shares

2,083,353

Equity Incentive Plan

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Plan modification, incremental cost

$ 1,124,000

$ 1,294,000

216,000

989,000

Plan modification, cost of forfeiture credits

$ 61,000

Number of participants impacted by modification | participant

Stock appreciation rights

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

7 years

3 years

Expiration period

15 years

Granted (in shares) | shares

25,907

240,000

Shares with accelerated vesting (in shares) | shares

107,482

Accelerated vesting cost

$ 430,000

Compensation expense

1,457,000

$ 994,000

1,243,000

Unrecognized compensation expense

3,730,000

$ 1,737,000

$ 2,904,000

$ 3,730,000

Period for recognizing stock-based compensation expense

3 years 3 months 18 days

3 years 10 months 24 days

Stock appreciation rights | Equity Incentive Plan

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

5 years

Granted (in shares) | shares

100,000

Plan modification, incremental cost

$ 430,000

Stock Appreciation Rights - Legacy Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Expiration period

15 years

Minimum period after holding grant for retirement eligibility

1 year

Minimum service period for retirement eligibility

5 years

Other Stock Appreciation Rights

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Expiration period

10 years

5 years

Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

3 years

Granted (in shares) | shares

41,283

Compensation expense

578,000

$ 249,000

$ 271,000

Unrecognized compensation expense

$ 488,000

Period for recognizing stock-based compensation expense

1 year 8 months 12 days

Grant date fair market value (in dollars per share) | $ / shares

$ 13.55

Restricted Stock Units and Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Granted (in shares) | shares

293,297

Unrecognized compensation expense

$ 3,000,000

Period for recognizing stock-based compensation expense

1 year 8 months 12 days

Grant date fair market value (in dollars per share) | $ / shares

$ 11.84

Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Shares with accelerated vesting (in shares) | shares

74,280

Accelerated vesting cost

$ 694,000

Restricted Stock Units | Equity Incentive Plan

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Granted (in shares) | shares

282,192

Plan modification, incremental cost

$ 694,000

Restricted Stock Units - Legacy Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

3 years

Granted (in shares) | shares

60,000

Grant date fair market value (in dollars per share) | $ / shares

$ 14.25

All Other Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

3 years

Restricted stock awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

1 year

Compensation expense

2,404,000

$ 3,078,000

3,174,000

Minimum | Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award payout percentage

0.00%

Maximum | Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award payout percentage

150.00%

Retained Earnings

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Cumulative effect adjustment

^[1]

(38,371,000)

$ (77,652,000)

$ (64,803,000)

$ (38,371,000)

$ (23,694,000)

Accounting Standards Update 2018-07 | Cumulative Effect, Period of Adoption, Adjustment

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Cumulative effect adjustment

(306,000)

Accounting Standards Update 2018-07 | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Cumulative effect adjustment

$ 1,853,000

^[1]

$ 1,853,000

^[1]

$ 1,853,000

^[1]

$ 2,000,000

Non-employees | Stock appreciation rights

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award vesting period

5 years

Granted (in shares) | shares

100,000

Strike price (in dollars per share) | $ / shares

$ 28.50

Non-employees | Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Shares authorized for future issuance (in shares) | shares

248,841

Granted (in shares) | shares

110,900

Compensation expense

$ 0

Number of equally weighted market measures | market_measure

Non-employees | Minimum | Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award payout percentage

0.00%

Threshold award payout percentage for straight-line interpolation

50.00%

Non-employees | Maximum | Performance-Based Awards

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Award payout percentage

150.00%

Threshold award payout percentage for straight-line interpolation

150.00%

[1]	(1) Share data has been adjusted to reflect a 2-for-1 stock split effected in the form of a dividend on December 21, 2018.

Stock-Based Compensation - Stock Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 4,604	$ 4,363	$ 4,724
Stock appreciation rights
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	1,457	994	1,243
Performance-based stock awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	578	249	271
Restricted stock awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	2,404	3,078	3,174
Employee stock purchase plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation	$ 165	$ 42	$ 36

Stock-Based Compensation - SSARs Assumptions (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assumptions:
Expected term (in years)	6 years
Minimum
Assumptions:
Expected term (in years)		4 years 2 months 26 days	4 years
Maximum
Assumptions:
Expected term (in years)		7 years	9 years 6 months
Stock appreciation rights
Assumptions:
Expected volatility	20.34%
Expected volatility, minimum		24.63%	25.69%
Expected volatility, maximum		33.63%	42.99%
Expected dividends	0.00%	0.00%	0.00%
Risk-free rate	0.38%
Risk-free rate, minimum		1.45%	2.50%
Risk-free rate, maximum		2.55%	2.94%
Weighted average fair value per share at grant date (in dollars per share)	$ 1.93	$ 5.43	$ 4.68
Aggregate intrinsic value of SSARs exercised	$ 571	$ 493	$ 2,214
Total fair value of SSARs vested during the year	1,245	1,171	1,710
Unrecognized compensation information:
Unrecognized compensation cost	$ 1,737	$ 2,904	$ 3,730
Period remaining (in years)	3 years 3 months 18 days	3 years 10 months 24 days	3 years 10 months 24 days

Stock-Based Compensation - SSARs Activity (Details) - Stock appreciation rights - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020
Units
Beginning balance (in shares)	1,772,652
Granted (in shares)	25,907		240,000
Exercised (in shares)	(140,354)
Forfeited or expired (in shares)	(68,530)
Ending balance (in shares)	1,589,675	1,772,652
Exercisable (in shares)				991,130
Weighted Average Exercise Price
Beginning balance, weighted average exercise price (in dollars per share)	$ 10.73	$ 10.31		$ 10.73
Granted, weighted average exercise price (in dollars per share)	9.35
Exercised, weighted average exercise price (in dollars per share)	5.94
Forfeited or expired, weighted average exercise price (in dollars per share)	9.14
Ending balance, weighted average exercise price (in dollars per share)	$ 10.73	$ 10.31
Exercisable, weighted average exercise price (in dollars per share)				$ 9.59
Weighted Average Remaining Contractual Term
Weighted average remaining contractual term	8 years 5 months 12 days	9 years 2 months 12 days
Weighted average remaining contractual term, granted	9 years 5 months 1 day
Weighted average remaining contractual term, exercisable	8 years 1 month 20 days

Stock-Based Compensation - Performance-Based Awards Activity (Details) - Performance-Based Awards	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	192,248
Granted (in shares) \| shares	41,283
Vested (in shares) \| shares	0
Forfeited (in shares) \| shares	(1,900)
Ending balance (in shares) \| shares	231,631
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 9.88
Granted (in dollars per share) \| $ / shares	13.55
Vested (in dollars per share) \| $ / shares	0.00
Forfeited (in dollars per share) \| $ / shares	13.55
Ending balance (in dollars per share) \| $ / shares	$ 10.51

Stock-Based Compensation - RSUs and RSAs Activity (Details) - Restricted Stock Units and Awards	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) \| shares	340,780
Granted (in shares) \| shares	293,297
Vested (in shares) \| shares	(231,845)
Forfeited (in shares) \| shares	(33,015)
Ending balance (in shares) \| shares	369,217
Weighted Average Grant Date Fair Value
Beginning balance (in dollars per share) \| $ / shares	$ 15.35
Granted (in dollars per share) \| $ / shares	11.84
Vested (in dollars per share) \| $ / shares	15.37
Forfeited (in dollars per share) \| $ / shares	14.62
Ending balance (in dollars per share) \| $ / shares	$ 12.61

Stock-Based Compensation - ESPP Assumptions (Details)	12 Months Ended
Stock-Based Compensation - ESPP Assumptions (Details)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assumptions:
Expected term (in years)	6 years
Employee stock purchase plan
Assumptions:
Expected volatility	22.50%	7.60%	7.60%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	6 months	1 year	1 year
Risk-free rate	0.17%	2.09%	2.09%

Stock-Based Compensation - Events and the Impact to Equity Based Compensation (Details) $ in Thousands		1 Months Ended				12 Months Ended
	Dec. 21, 2018	Dec. 31, 2018 shares	Oct. 31, 2018 shares	May 31, 2018 USD ($) shares	Jan. 31, 2018 USD ($) shares	Dec. 31, 2020 shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock split ratio	2	2
Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental cost \| $				$ 1,124	$ 1,294		$ 216	$ 989
Awards exchanged, percentage of original award					100.00%
Shares issued (in shares)				101,178
Performance Based Restricted Stock Units \| Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares forfeited (in shares)					282,192
Performance Based Restricted Stock Units \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares forfeited (in shares)			159,384
Restricted Stock Units \| Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental cost \| $				$ 694
Issuance of stock (in shares)					282,192
Shares vested (in shares)				74,280
Restricted Stock Units \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares forfeited (in shares)			298,254
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares exercised (in shares)						140,354
Shares forfeited (in shares)						68,530
Shares excluded from stock split (in shares)		100,000
Stock appreciation rights \| Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, incremental cost \| $				$ 430
Shares exercised (in shares)				201,334
Stock appreciation rights \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)			1,595,430

Stock Warrants (Details) - $ / shares	12 Months Ended
Stock Warrants (Details) - $ / shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020
Equity [Abstract]
Warrants outstanding (in shares)	113,500		113,500
Strike price (in dollars per share)	$ 5.00		$ 5.00
Warrants modified (in shares)		113,500
Warrants forfeited (in shares)	10,000

Operating Leases - Narrative (Details) $ in Thousands	12 Months Ended
Operating Leases - Narrative (Details) $ in Thousands	Dec. 31, 2020 USD ($) renewal_option
Office Space Lease, Kansas City, Missouri
Operating Leased Assets [Line Items]
Lease term	15 years
Number of renewal terms \| renewal_option	4
Renewal term	5 years
Construction allowance \| $	$ 1,000
Office Space Lease, Frisco, Texas
Operating Leased Assets [Line Items]
Lease term	86 months
Number of renewal terms \| renewal_option	2
Renewal term	5 years
Construction allowance \| $	$ 212

Operating Leases - Rental Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Rental Expense	$ 2,871	$ 2,526	$ 3,323

Operating Leases - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2021	$ 2,837
2022	2,910
2023	2,956
2024	2,621
2025	2,627
Thereafter	$ 16,716

Disclosure about Fair Value of Financial Instruments - Nonrecurring Measurements (Details) - Nonrecurring - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	$ 55,454	$ 20,889
Foreclosed assets held-for-sale	2,347
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed assets held-for-sale	0
Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	55,454	$ 20,889
Foreclosed assets held-for-sale	$ 2,347

Disclosure about Fair Value of Financial Instruments - Unobservable Inputs (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans with appraisals more than one year old	$ 29,000
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	55,454	$ 20,889
Foreclosed assets held-for-sale	2,347
Unobservable Inputs (Level 3) \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	55,454	$ 20,889
Foreclosed assets held-for-sale	$ 2,347
Unobservable Inputs (Level 3) \| Marketability discount \| Market comparable properties \| Minimum \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.01	0.10
Foreclosed assets held for sale, measurement input	0.07
Unobservable Inputs (Level 3) \| Marketability discount \| Market comparable properties \| Maximum \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.98	0.15
Foreclosed assets held for sale, measurement input	0.10
Unobservable Inputs (Level 3) \| Marketability discount \| Market comparable properties \| Weighted Average \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans, measurement input	0.24	0.12
Foreclosed assets held for sale, measurement input	0.09

Disclosure about Fair Value of Financial Instruments - Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Assets
Restricted equity securities	$ 15,543	$ 17,278
Carrying Amount
Financial Assets
Cash and cash equivalents	408,810	187,320
Available-for-sale securities	654,588	739,473
Loans, net of allowance for loan losses	4,366,602	3,795,348
Restricted equity securities	15,543	17,278
Interest receivable	17,236	15,716
Equity securities	13,436	2,161
Derivative assets	24,094	9,838
Total	5,500,309	4,767,134
Financial Liabilities
Deposits	4,694,740	3,923,759
Federal funds purchased and repurchase agreements	2,306	14,921
Federal Home Loan Bank advances	293,100	358,743
Other borrowings	963	921
Interest payable	2,163	4,584
Derivative liabilities	24,454	9,907
Total	5,017,726	4,312,835
Fair Value Measurements
Financial Assets
Cash and cash equivalents	408,810	187,320
Available-for-sale securities	654,588	739,473
Loans, net of allowance for loan losses	4,351,970	3,810,818
Restricted equity securities	15,543	17,278
Interest receivable	17,236	15,716
Equity securities	13,436	2,161
Derivative assets	24,094	9,838
Total	5,485,677	4,782,604
Financial Liabilities
Deposits	4,734,251	3,928,838
Federal funds purchased and repurchase agreements	2,306	14,921
Federal Home Loan Bank advances	309,020	357,859
Other borrowings	2,024	2,147
Interest payable	2,163	4,584
Derivative liabilities	24,454	9,907
Total	5,074,218	4,318,256
Fair Value Measurements \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Cash and cash equivalents	408,810	187,320
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	0	0
Equity securities	0	0
Derivative assets	0	0
Total	408,810	187,320
Financial Liabilities
Deposits	718,459	521,826
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total	718,459	521,826
Fair Value Measurements \| Significant Other Observable Inputs (Level 2)
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	654,588	739,473
Loans, net of allowance for loan losses	0	0
Restricted equity securities	0	0
Interest receivable	17,236	15,716
Equity securities	2,247	2,161
Derivative assets	24,094	9,838
Total	698,165	767,188
Financial Liabilities
Deposits	0	0
Federal funds purchased and repurchase agreements	2,306	14,921
Federal Home Loan Bank advances	309,020	357,859
Other borrowings	2,024	2,147
Interest payable	2,163	4,584
Derivative liabilities	24,454	9,907
Total	339,967	389,418
Fair Value Measurements \| Unobservable Inputs (Level 3)
Financial Assets
Cash and cash equivalents	0	0
Available-for-sale securities	0	0
Loans, net of allowance for loan losses	4,351,970	3,810,818
Restricted equity securities	15,543	17,278
Interest receivable	0	0
Equity securities	11,189	0
Derivative assets	0	0
Total	4,378,702	3,828,096
Financial Liabilities
Deposits	4,015,792	3,407,012
Federal funds purchased and repurchase agreements	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Interest payable	0	0
Derivative liabilities	0	0
Total	$ 4,015,792	$ 3,407,012

Commitments and Credit Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Total	$ 1,571,241	$ 1,546,495
Commitments to originate loans
Loss Contingencies [Line Items]
Total	99,596	134,652
Standby letters of credit
Loss Contingencies [Line Items]
Total	48,607	39,035
Lines of credit
Loss Contingencies [Line Items]
Total	1,423,038	1,351,873
Future lease commitments
Loss Contingencies [Line Items]
Total	$ 0	$ 20,935

Stocks Offerings and Repurchases (Details)					1 Months Ended
Stocks Offerings and Repurchases (Details)	Sep. 17, 2019 USD ($) $ / shares shares	Aug. 19, 2019 USD ($) $ / shares shares	Jan. 30, 2019 USD ($) $ / shares shares	Dec. 21, 2018	Dec. 31, 2018	Oct. 31, 2020 USD ($)
Class of Stock [Line Items]
Stock repurchase program, authorized amount						$ 20,000,000
Stock split ratio				2	2
Series A Preferred Shares
Class of Stock [Line Items]
Dividend rate of preferred stock			7.00%
Preferred shares outstanding (in shares) \| shares			1,200,000
Redemption price (in dollars per share) \| $ / shares			$ 25.00
Redemption amount of preferred shares			$ 30,000,000
IPO and Underwriter's Overallotment Option
Class of Stock [Line Items]
Shares sold and issued (in shares) \| shares		6,594,362
Total proceeds on sale of stock		$ 87,000,000
Underwriters' Overallotment Option
Class of Stock [Line Items]
Shares sold and issued (in shares) \| shares	844,362	844,362
Price of stock per share (in dollars per share) \| $ / shares	$ 14.50	$ 14.50
Total proceeds on sale of stock	$ 11,000,000

Parent Company Condensed Financial Statements - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash	$ 408,810	$ 187,320
Other assets	55,962	28,886
Total assets	5,659,303	4,931,233
Liabilities and stockholders’ equity
Trust preferred securities, net	963	921
Total liabilities	5,034,875	4,329,589
Stockholders’ equity
Common stock	523	520
Treasury stock, at cost	(6,061)	0
Additional paid-in capital	522,911	519,870
Retained earnings	77,652	64,803
Accumulated other comprehensive income	29,403	16,451
Total stockholders’ equity	624,428	601,644	$ 490,336	$ 287,147
Total liabilities and stockholders’ equity	5,659,303	4,931,233
Parent Company
Assets
Cash	46,676	52,478
Other assets	1,756	1,364
Total assets	628,594	605,796
Liabilities and stockholders’ equity
Trust preferred securities, net	963	921
Other liabilities	3,203	3,231
Total liabilities	4,166	4,152
Stockholders’ equity
Common stock	523	520
Treasury stock, at cost	(6,061)	0
Additional paid-in capital	522,911	519,870
Retained earnings	77,652	64,803
Accumulated other comprehensive income	29,403	16,451
Total stockholders’ equity	624,428	601,644
Total liabilities and stockholders’ equity	628,594	605,796
Banks \| Parent Company
Assets
Investment in consolidated subsidiaries	580,162	551,084
Nonbanks \| Parent Company
Assets
Investment in consolidated subsidiaries	$ 0	$ 870

Parent Company Condensed Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income
Other		$ 1,198	$ 917	$ 967
Expense
Salaries and employee benefits		57,747	57,114	56,118
Occupancy, net		8,701	8,349	8,214
Other		8,677	8,026	7,601
Income tax benefit	$ (2,394)	2,713	4,138	(2,394)
Net Income		12,601	28,473	19,590
Parent Company
Income
Earnings of consolidated subsidiaries		13,682	28,814	24,330
Management fees charged to subsidiaries		8,520	7,500	6,000
Other		(18)	(4)	3
Total income		22,184	36,310	30,333
Expense
Salaries and employee benefits		5,143	4,584	8,139
Occupancy, net		405	275	368
Other		4,220	3,044	3,734
Total expense		9,768	7,903	12,241
Income tax benefit		(185)	(66)	(1,498)
Net Income		$ 12,601	$ 28,473	$ 19,590

Parent Company Condensed Financial Statements - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Activities
Net income	$ 12,601	$ 28,473	$ 19,590
Share-based incentive compensation	4,363	4,725	4,604
Net cash provided by operating activities	80,453	73,830	45,850
Investing Activities
Net cash used in investing activities	(544,590)	(861,874)	(1,084,446)
Financing Activities
Redemption of preferred stock	0	(30,000)	0
Dividends paid on preferred stock	0	(700)	(2,100)
Issuance of common stock, net	3	88,324	203,848
Common stock purchased and retired/ Open market common shares repurchases	(6,061)	(155)	(11,024)
Proceeds from employee stock purchase plan	151	547	367
Net decrease in employee receivables	47	117	71
Net cash provided by (used in) financing activities	685,627	758,823	1,124,317
Increase (Decrease) in Cash and Cash Equivalents	221,490	(29,221)	85,721
Cash and Cash Equivalents, Beginning of Period	187,320	216,541	130,820
Cash and Cash Equivalents, End of Period	408,810	187,320	216,541
Parent Company
Operating Activities
Net income	12,601	28,473	19,590
Earnings of consolidated subsidiaries	(13,682)	(28,814)	(24,330)
Share-based incentive compensation	1,917	1,974	2,224
Other adjustments	(412)	5,343	1,367
Net cash provided by operating activities	424	6,976	(1,149)
Investing Activities
Decrease (increase) in investment in subsidiaries	870	(49,825)	(157,900)
Net cash used in investing activities	870	(49,825)	(157,900)
Financing Activities
Redemption of preferred stock	0	(30,000)	0
Dividends paid on preferred stock	0	(700)	(2,100)
Issuance of common stock, net	3	88,324	203,848
Common stock purchased and retired/ Open market common shares repurchases	(6,061)	(155)	(11,024)
Acquisition of common stock for tax withholding obligations	(1,236)	(245)	(2,132)
Proceeds from employee stock purchase plan	151	547	367
Net decrease in employee receivables	47	117	71
Net cash provided by (used in) financing activities	(7,096)	57,888	189,030
Increase (Decrease) in Cash and Cash Equivalents	(5,802)	15,039	29,981
Cash and Cash Equivalents, Beginning of Period	52,478	37,439	7,458
Cash and Cash Equivalents, End of Period	$ 46,676	$ 52,478	$ 37,439

Loans and Allowance for Loan Leases - Internal Risk Ratings (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 4,455,100	$ 3,861,707
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,944,627	3,727,182
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	224,416	47,629
Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	211,008	47,221
Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	70,734	34,192
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	4,315	5,483
Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,338,757	1,356,817
Commercial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,182,519	1,258,952
Commercial \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	66,142	27,069
Commercial \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	63,407	38,666
Commercial \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	26,124	32,130
Commercial \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	565	0
Commercial \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Energy
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	345,233	408,573
Energy \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	145,598	392,233
Energy \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	90,134	9,460
Energy \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	83,574	2,340
Energy \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	22,177	0
Energy \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,750	4,540
Energy \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,179,534	1,024,041
Commercial real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,035,056	1,007,921
Commercial real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	67,710	9,311
Commercial real estate \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	57,680	5,746
Commercial real estate \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	19,088	120
Commercial real estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	943
Commercial real estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	563,144	628,418
Construction and land development \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	561,871	628,418
Construction and land development \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	125	0
Construction and land development \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	1,148	0
Construction and land development \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Construction and land development \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Residential and multifamily real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	680,932	398,695
Residential and multifamily real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	672,327	394,495
Residential and multifamily real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	305	1,789
Residential and multifamily real estate \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	5,199	469
Residential and multifamily real estate \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	3,101	1,942
Residential and multifamily real estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Residential and multifamily real estate \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	292,230	0
Paycheck Protection Program ("PPP") \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	292,230	0
Paycheck Protection Program ("PPP") \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program ("PPP") \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program ("PPP") \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program ("PPP") \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Paycheck Protection Program ("PPP") \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	55,270	45,163
Consumer \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	55,026	45,163
Consumer \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Substandard Performing \| Performing Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Substandard Performing \| Nonperforming Financial Instruments
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	244	0
Consumer \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	0	0
Consumer \| Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Gross loans	$ 0	$ 0