Sierra Bancorp (BSRR) 10-Q 5 May 23 2023 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 01, 2023
Cover [Abstract]
Entity Central Index Key	0001130144
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	000-33063
Entity Registrant Name	SIERRA BANCORP
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	33-0937517
Entity Address, Address Line One	86 North Main Street
Entity Address, City or Town	Porterville
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	93257
City Area Code	559
Local Phone Number	782-4900
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	BSRR
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		15,045,639
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 81,694	$ 72,803
Interest bearing deposits in banks	1,812	4,328
Total cash & cash equivalents	83,506	77,131
Available-for-sale, net of zero allowance for credit losses at March 31, 2023 and December 31, 2022	1,040,920	934,923
Held-to-maturity, (fair value of $325,607 at March 31, 2023 and $328,011 at December 31, 2022)	332,791	336,944
Allowance for credit losses on held-to-maturity securities	(63)	(63)
Net, investment securities held-to-maturity	332,728	336,881
Loans:
Gross loans	2,033,968	2,052,940
Deferred loan costs (fees), net	24	(123)
Allowance for credit losses on loans	(23,090)	(23,060)
Net loans	2,010,902	2,029,757
Premises and equipment, net	22,321	22,478
Goodwill	27,357	27,357
Other intangible assets, net	2,056	2,275
Bank-owned life insurance	52,308	52,169
Other assets	121,886	125,619
Total assets	3,693,984	3,608,590
Deposits:
Noninterest bearing	1,041,748	1,088,199
Interest bearing	1,907,240	1,757,965
Total deposits	2,948,988	2,846,164
Repurchase agreements	94,061	109,169
Other borrowings	216,800	219,000
Long-term debt	49,236	49,214
Subordinated debentures	35,526	35,481
Allowance for credit losses on unfunded loan commitments	850	840
Other liabilities	41,513	45,140
Total liabilities	3,386,974	3,305,008
Commitments and contingent liabilities (Note 7)
Shareholders' equity
Common stock, no par value; 24,000,000 shares authorized; 15,050,740 and 15,170,372 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	111,801	112,928
Additional paid-in capital	4,561	4,148
Retained earnings	246,723	243,082
Accumulated other comprehensive (loss) income, net	(56,075)	(56,576)
Total shareholders' equity	307,010	303,582
Total liabilities and shareholders' equity	$ 3,693,984	$ 3,608,590

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Available-for-sale securities, allowance for credit losses	$ 0	$ 0
Held-to-maturity, at amortized cost, fair value	$ 325,607	$ 328,011
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	24,000,000	24,000,000
Common Stock, Shares, Issued	15,050,740	15,170,372
Common Stock, Shares, Outstanding	15,050,740	15,170,372

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest and dividend income
Loans, including fees	$ 22,550	$ 20,772
Taxable securities	11,986	3,490
Tax-exempt securities	2,813	1,726
Federal funds sold and other	70	93
Total interest income	37,419	26,081
Interest expense
Deposits	5,999	560
Short-term borrowings	2,158	82
Subordinated debentures	1,130	683
Total interest expense	9,287	1,325
Net interest income	28,132	24,756
Provision for credit losses	260	506
Net interest income after provision for credit losses	27,872	24,250
Noninterest income
Net gains on sale of securities available-for-sale	45	1,032
Increase (decrease) in cash surrender value of life insurance	172	(645)
Other income	982	128
Total noninterest income	6,579	6,063
Noninterest expense
Salaries and employee benefits	12,816	11,805
Occupancy and equipment costs	2,330	2,294
Other	7,846	6,074
Total noninterest expense	22,992	20,173
Income before taxes	11,459	10,140
Provision for income taxes	2,708	2,733
Net income	$ 8,751	$ 7,407
Earnings per share
Earnings per share basic	$ 0.58	$ 0.49
Earnings per share diluted	$ 0.58	$ 0.49
Deposit Account [Member]
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 5,380	$ 5,548

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Comprehensive Income [Abstract]
Net income	$ 8,751	$ 7,407
Unrealized gain (loss) on securities:
Unrealized holding gain (loss) arising during period	756	(39,962)
Less: reclassification adjustment for gains included in net income (1)	(45)	(1,032)
Other comprehensive gain (loss), before tax	711	(40,994)
Income tax expense (benefit) related to items of other comprehensive gain (loss), net of tax	(210)	12,119
Other comprehensive gain (loss), net of tax:	501	(28,875)
Comprehensive income (loss)	$ 9,252	$ (21,468)

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Reclassification adjustment for (losses) gains on securities available-for-sale included in net income, tax	$ 13	$ 305

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Total
Balance at Dec. 31, 2021	$ 113,007	$ 3,910	$ (7,315)	$ 234,410	$ 11,167	$ (7,315)	$ 362,494
Balance (in shares) at Dec. 31, 2021	15,270,010
Increase (Decrease) in Shareholders' Equity
Net income				7,407			7,407
Other comprehensive gain (loss), net of tax					(28,875)		(28,875)
Restricted stock surrendered due to employee tax liability	$ (9)			(23)			(32)
Restricted stock surrendered due to employee tax liability (in shares)	(1,196)
Restricted stock forfeited / cancelled (in shares)	(220)
Stock based compensation - stock options		30					30
Stock based compensation - restricted stock		341					341
Stock repurchase	$ (1,325)			(3,526)			(4,851)
Stock repurchase (in shares)	(182,562)
Cash dividends				(3,508)			(3,508)
Balance at Mar. 31, 2022	$ 111,673	4,281		227,445	(17,708)		325,691
Balance (in shares) at Mar. 31, 2022	15,086,032
Balance at Dec. 31, 2022	$ 112,928	4,148		243,082	(56,576)		303,582
Balance (in shares) at Dec. 31, 2022	15,170,372
Increase (Decrease) in Shareholders' Equity
Net income				8,751			8,751
Other comprehensive gain (loss), net of tax					501		501
Restricted stock granted (in shares)	29,064
Restricted stock surrendered due to employee tax liability	$ (13)			(23)			(36)
Restricted stock surrendered due to employee tax liability (in shares)	(1,764)
Restricted stock forfeited / cancelled (in shares)	(514)
Stock based compensation - stock options		20					20
Stock based compensation - restricted stock		393					393
Stock repurchase	$ (1,088)			(1,592)			(2,680)
Stock repurchase (in shares)	(146,418)
Excise tax on stock	$ (26)						(26)
Cash dividends				(3,495)			(3,495)
Balance at Mar. 31, 2023	$ 111,801	$ 4,561		$ 246,723	$ (56,075)		$ 307,010
Balance (in shares) at Mar. 31, 2023	15,050,740

CONSOLIDATED STATEMENT OF CHA_2

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY
Common Stock, Dividends, Per Share, Declared	$ 0.23	$ 0.23

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net income	$ 8,751	$ 7,407
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales of securities	(45)	(1,032)
(Gain) loss on disposal of fixed assets	(14)	6
Gain on sale on foreclosed assets		(5)
Stock based compensation expense	413	371
Provision for credit losses on loans	250	600
Depreciation and amortization	604	636
Net amortization on securities premiums and discounts	743	1,177
Net (accretion) amortization of premiums/discounts for loans acquired	(124)	36
(Increase) decrease in cash surrender value of life insurance policies	(172)	645
Amortization of core deposit intangible	219	253
Decrease (increase) in interest receivable and other assets	3,185	(1,419)
Decrease in other liabilities	(3,617)	(537)
Deferred income tax (benefit) provision	(119)	811
Decrease in value of restricted bank equity securities	291	332
Excise tax on stock options purchased	(26)
Amortization of debt issuance costs	22	10
Net amortization of partnership investment	166	113
Net cash provided by operating activities	10,527	9,404
Cash flows from investing activities:
Maturities and calls of securities available for sale	21,864	2,373
Proceeds from sales of securities available for sale	14,349	26,408
Purchases of securities available for sale	(149,172)	(145,327)
Principal paydowns on securities available for sale	11,128	23,688
Loan originations and payments, net	(422)	3,914
Purchases of premises and equipment	(413)	(265)
Proceeds from sale of premises and equipment	25
Proceeds from sales of foreclosed assets	19,151	5
Purchase of bank-owned life insurance	(202)	(8)
Liquidation of bank-owned life insurance		11
Proceeds from BOLI death benefit	235
Net cash used in investing activities	(83,457)	(89,201)
Cash flows from financing activities:
Increase in deposits	102,824	83,371
Decrease in borrowed funds	(27,200)
Increase in Fed funds purchased	25,000
(Decrease) increase in customer repurchase agreements	(15,108)	823
Cash dividends paid	(3,495)	(3,508)
Repurchases of common stock	(2,716)	(4,883)
Net cash provided by financing activities	79,305	75,803
Increase (decrease) in cash and cash equivalents	6,375	(3,994)
Cash and cash equivalents, beginning of year	77,131	257,528
Cash and cash equivalents, end of year	83,506	253,534
Cash paid during the year for:
Interest	8,511	$ 1,730
Supplemental schedule of noncash investing and financing activities:
Real estate acquired through foreclosure	$ 15,406

The Business of Sierra Bancorp

The Business of Sierra Bancorp	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Business of Sierra Bancorp	Note 1 – The Business of Sierra Bancorp Sierra Bancorp (the “Company”) is a California corporation headquartered in Porterville, California, and is a registered bank holding company under federal banking laws. The Company was formed to serve as the holding company for Bank of the Sierra (the “Bank”), and has been the Bank’s sole shareholder since August 2001. The Company exists primarily for the purpose of holding the stock of the Bank and of such other subsidiaries it may acquire or establish. As of March 31, 2023, the Company’s only other subsidiaries were Sierra Statutory Trust II, Sierra Capital Trust III, and Coast Bancorp Statutory Trust II, which were formed solely to facilitate the issuance of capital trust pass-through securities (“TRUPS”). Pursuant to the Financial Accounting Standards Board (“FASB”) standard on the consolidation of variable interest entities, these trusts are not reflected on a consolidated basis in the Company’s financial statements. References herein to the “Company” include Sierra Bancorp and its consolidated subsidiary, the Bank, unless the context indicates otherwise. Bank of the Sierra, a California state-chartered bank headquartered in Porterville, California, offers a wide range of retail and commercial banking services via branch offices located throughout California’s South San Joaquin Valley, the Central Coast, Ventura County, the Sacramento area, and neighboring communities. The Bank was incorporated in September 1977, and opened for business in January 1978 as a one-branch bank with $1.5 million in capital. Our growth in the ensuing years has largely been organic in nature, but includes four whole-bank acquisitions: Sierra National Bank in 2000, Santa Clara Valley Bank in 2014, Coast National Bank in 2016, and Ojai Community Bank in October 2017. As of the filing date of this report the Bank operates 35 full-service branches and an online branch, and maintains ATMs at all but one of our branch locations as well as at seven non-branch locations. Moreover, the Bank has specialized lending units which focus on agricultural borrowers, commercial real estate, and mortgage warehouse lending. In addition, in February 2020 the Bank opened a loan production office which is currently located in Roseville, CA. To support organic growth in the agricultural lending sector the Bank also opened a loan production office in Templeton, CA in April 2022. The Company had total assets of $3.7 billion at March 31, 2023, and for a number of years we have claimed the distinction of being the largest bank headquartered in the South San Joaquin Valley. The Bank’s deposit accounts, which totaled $2.9 billion at March 31, 2023, are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to maximum insurable amounts.

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Basis of Presentation [Abstract]
Basis of Presentation	Note 2 – Basis of Presentation The accompanying interim unaudited consolidated financial statements have been prepared in a condensed format as allowed under U.S. generally accepted accounting principles (“GAAP”). Therefore, these financial statements do not include all of the information and footnotes required for complete, audited financial statements as presented in the Company’s Annual Report on Form 10-K. The information furnished in these interim statements reflects all adjustments that are, in the opinion of Management, necessary for a fair statement of the results for such periods. Such adjustments can generally be considered as normal and recurring unless otherwise disclosed in this Form 10-Q. In preparing the accompanying financial statements, Management has taken subsequent events into consideration, through May 5, 2023 and recognized them where appropriate. The results of operations in the interim statements are not necessarily indicative of the results that may be expected for any other quarter, or for the full year. Certain amounts reported for 2022 have been reclassified to be consistent with the reporting for 2023, none of which impacted net income or shareholders’ equity. The interim financial information should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the Securities and Exchange Commission (the “SEC”).

Current Accounting Developments

Current Accounting Developments	3 Months Ended
	Mar. 31, 2023
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Current Accounting Developments	Note 3 – Current Accounting Developments In September 2016 the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments contractual term for financial assets carried at amortized cost (generally loans and held-to-maturity investment securities) in addition to certain off balance-sheet credit exposure. Under the current expected credit losses (“CECL”) methodology expected credit losses for financial assets are estimated over the contractual life of the financial asset, adjusted for expected prepayments, considering historical experience, current conditions, and reasonable and supportable forecasts. Additionally, under CECL the accounting for credit losses on available-for-sale debt securities is addressed through an allowance for credit losses which is a change from legacy GAAP which previously required the direct write-down of securities through the other-than-temporary impairment approach. The Company For available-for-sale debt securities in an unrealized loss position for which management has an intent to sell the security or considers it more likely-than-not that the security in question will be sold prior to a recovery of its amortized cost basis, the security will be written down to fair value through a direct charge to income. For the remainder of available sale debt securities in an unrealized loss position, which don’t meet the previously outlined criteria, management evaluates whether the decline in fair value is a reflection of credit deterioration or other factors. In performing this evaluation, management considers the extent which fair value has fallen below amortized cost, changes in ratings by rating agencies, and other information indicating a deterioration in repayment capacity of either the underlying issuer or the borrowers providing repayment capacity in a securitization. If management’s evaluation indicates that a credit loss exists then a present value of the expected cash flows is calculated and compared to the amortized cost basis of the security in question and to the degree that the amortized cost basis exceeds the present value an allowance for credit loss (“ACL”) is established, with the caveat that the maximum amount of the reserve on any individual security is the difference between the fair value and amortized cost balance of the security in question. Any unrealized loss that has not been recorded through an ACL is recognized in other comprehensive income. On April 1, 2022 the Company transferred $162.1 million of Agency, Mortgaged-Backed and Municipal securities from available-for-sale to held-to maturity. On October 1, 2022, a similar transfer of $198.3 million securities from available for sale to held-to-maturity was completed. Because of the implicit and explicit guarantees of the Federal Government on the Agency and Mortgage-Backed securities there is no expectation of future losses on any of these securities. The Bank’s municipal bonds moved to the held-to-maturity designation all have credit ratings considered investment grade or equivalent. A discounted-cash-flow reserve calculation was performed upon the transfer of these securities into the held-to-maturity designation and is updated on a quarterly basis. As of March 31, 2023, an allowance for credit losses of In March 2023 the FASB issued , , “Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method.” ​

Share Based Compensation

Share Based Compensation	3 Months Ended
	Mar. 31, 2023
Share-based Payment Arrangement [Abstract]
Share Based Compensation	Note 4 – Share Based Compensation On March 16, 2017, the Company’s Board of Directors approved and adopted the 2017 Stock Incentive Plan (the “2017 Plan”), which became effective May 24, 2017, the date approved by the Company’s shareholders. The 2017 Plan replaced the Company’s 2007 Stock Incentive Plan (the “2007 Plan”), which expired by its own terms on March 15, 2017. Options to purchase 134,449 shares that were granted under the 2007 Plan were still outstanding as of March 31, 2023 and remain unaffected by that plan’s expiration. The 2017 Plan provides for the issuance of both “incentive” and “nonqualified” stock options to officers and employees, and of “nonqualified” stock options to non-employee directors and consultants of the Company. The 2017 Plan also provides for the issuance of restricted stock awards to these same classes of eligible participants. The total number of shares of the Company’s authorized but unissued stock reserved for issuance pursuant to awards under the 2017 Plan was initially 850,000 shares, and the number remaining available for grant as of March 31, 2023 was 356,420. Options to purchase 402,726 shares granted under the 2017 Plan were outstanding as of March 31, 2023. The potential dilutive impact of unexercised stock options is discussed below in Note 5, Earnings per Share. Pursuant to FASB’s standards on stock compensation, the value of each stock option and restricted stock award is reflected in our income state­ment as employee compensation or directors’ expense by amortizing its grant date fair value over the vesting period of the option or award. The Company utilizes a Black-Scholes model to determine grant date fair values for options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Forfeitures are reflected in compensation costs as they occur for both types of awards. A pre-tax charge of $0.4 million was reflected in the Company’s income statement during the first quarter of 2023 and $0.4 million was charged during the first quarter of 2022, as expense related to stock options and restricted stock awards. Restricted Stock Grants The Company’s Restricted Stock Awards are awards of either time-vested or performance-based shares. The Restricted Stock Awards are non-transferrable shares of common stock and are available to be granted to the Company’s employees and directors. The vesting period of Restricted Stock Awards is determined at the time the awards are issued, and different awards may have different vesting terms or performance measures; provided, however, that no installment of any Restricted Stock Award shall become vested less than one year from the grant date. Restricted Stock Awards are valued utilizing the fair value of the Company’s stock at the grant date. These awards are expensed on a straight-line basis over the vesting period and consider the probability of meeting the performance criteria. There were 29,064 shares granted to employees of the Company during the first three months of 2023. As of March 31, 2023, there was The Company’s restricted stock award activity for the three months ended March 31, 2023 and 2022 is summarized below (unaudited): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ ​ 2023 ​ 2022 ​ ​ Shares ​ ​ Weighted Average Grant-Date Fair Value ​ Shares ​ ​ Weighted Average Grant-Date Fair Value Unvested shares, January 1, ​ 175,619 ​ $ 21.42 ​ 165,131 ​ $ 21.72 Granted ​ 29,064 ​ ​ 21.50 ​ — ​ ​ — Vested ​ (3,162) ​ ​ 25.30 ​ (3,162) ​ ​ 25.30 Forfeited ​ (514) ​ ​ 27.16 ​ (220) ​ ​ 27.16 Unvested shares, March 31, ​ 201,007 ​ $ 21.35 ​ 161,749 ​ $ 21.65 ​ ​ Stock Option Grants The Company has issued equity instruments in the form of Incentive Stock Options and Nonqualified Stock Options to certain officers and directors and may continue to do so under the 2017 Plan. The exercise price of each stock option is determined at the time of the grant and may be no less than 100% of the fair market value of such stock at the time the option is granted. The Company’s stock option activity during the nine months ended March 31, 2023 and 2022 are summarized below (dollars in thousands, except per share data, unaudited): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ ​ 2023 ​ 2022 ​ Shares Weighted Average Exercise Price ​ Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Shares Weighted Average Exercise Price ​ Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at January 1, ​ 352,249 ​ $ 25.06 ​ ​ ​ $ 348 ​ 415,870 ​ $ 24.15 ​ ​ ​ $ 1,338 Exercised ​ — ​ $ — ​ ​ ​ $ — ​ — ​ $ — ​ ​ ​ $ 91 Forfeited/Expired ​ (2,200) ​ $ 27.67 ​ ​ ​ $ — ​ (3,081) ​ $ 27.30 ​ ​ ​ $ — Outstanding at March 31, ​ 350,049 ​ $ 25.04 ​ 4.99 ​ $ 33 ​ 412,789 ​ $ 24.12 ​ 5.66 ​ $ 1,092 Exercisable at March 31, ​ 325,649 ​ $ 24.89 ​ 4.85 ​ $ 33 ​ 370,789 ​ $ 23.78 ​ 5.43 ​ $ 1,092 (1) The aggregate intrinsic value of stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on March 31, 2023. This amount changes based on changes in the market value of the Company's stock.

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Earnings per Share	Note 5 – Earnings per Share The computation of earnings per share, as presented in the Consolidated Statements of Income, is based on the weighted average number of shares outstanding during each period, excluding unvested restricted stock awards. There were 14,971,842 weighted average shares outstanding during the first quarter of 2023 and 15,021,138 during the first quarter of 2022. Diluted earnings per share calculations include the effect of the potential issuance of common shares, which for the Company is limited to shares that would be issued on the exercise of “in-the-money” stock options, and unvested restricted stock awards. For the first quarter of 2023, calculations under the treasury stock method resulted in the equivalent of 30,524 shares being added to basic weighted average shares outstanding for purposes of determining diluted earnings per share, while a weighted average of 327,141 stock options were excluded from the calculation because they were underwater and thus anti-dilutive. For the first quarter of 2022 the equivalent of 99,852 shares were added in calculating diluted earnings per share, while 301,714 anti-dilutive stock options were not factored into the computation.

Comprehensive Income (Loss)

Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2023
Comprehensive Income [Abstract]
Comprehensive Income (Loss)	Note 6 – Comprehensive Income (Loss) As presented in the Consolidated Statements of Comprehensive Income (Loss), comprehensive income (loss) includes net income and other comprehensive income (loss). The Company’s only source of other comprehensive income (loss) is unrealized gains and losses on available-for-sale investment securities. Investment gains or losses that were realized and reflected in net income of the current period, which had previously been included in other comprehensive income (loss) as unrealized holding gains or losses in the period in which they arose, are considered to be reclassification adjustments that are excluded from other comprehensive income (loss) in the current period.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	3 Months Ended
	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Note 7 – Commitments and Contingent Liabilities The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business. Those financial instruments currently consist of unused commitments to extend credit and standby letters of credit. They involve, to varying degrees, elements of risk in excess of the amount recognized in the balance sheet. The Company’s exposure to credit loss in the event of nonperformance by counterparties for commitments to extend credit and letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and issuing letters of credit as it does for originating loans included on the balance sheet. The following financial instruments represent off-balance-sheet credit risk (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 December 31, 2022 Commitments to extend credit ​ $ 699,176 ​ $ 889,517 Standby letters of credit ​ $ 6,052 ​ $ 6,037 ​ Commitments to extend credit consist primarily of the unused or unfunded portions of the following: home equity lines of credit; commercial real estate construction loans, where disbursements are made over the course of construction; commercial revolving lines of credit; mortgage warehouse lines of credit; unsecured personal lines of credit; and formalized (disclosed) deposit account overdraft lines. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many commitments are expected to expire without being drawn upon, the unused portions of committed amounts do not necessarily represent future cash requirements. Standby letters of credit are issued by the Company to guarantee the performance of a customer to a third party, and the credit risk involved in issuing letters of credit is essentially the same as the risk involved in extending loans to customers. Included in unused commitments are mortgage warehouse lines which are mostly in the form of repo lines and are unconditionally cancellable. Unused commitments on mortgage warehouse lines were $401.5 million at March 31, 2023 and $594.6 million at December 31, 2022. At March 31, 2023, the Company was also utilizing a letter of credit in the amount of $127.9 million issued by the Federal Home Loan Bank on the Company’s behalf as security for certain deposits and to facilitate certain credit arrangements with the Company’s customers. That letter of credit is backed by loans which are pledged to the FHLB by the Company. The Company is subject to loss contingencies, including claims and legal actions arising in the ordinary course of business, which are recorded as liabilities when the likelihood of loss is probable, and an amount or range of loss can be reasonably estimated. Management does not believe there are such matters that will have a material effect on the financial statements. As noted under footnote 3 the adoption of CECL on January 1, 2022 impacted the Company’s ACL on unfunded loan commitments. Additional information is included in footnote 3.

Fair Value Disclosures and Repo

Fair Value Disclosures and Reporting and Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value	Note 8 – Fair Value Disclosures and Reporting and Fair Value Measurements FASB’s standards on financial instruments, and on fair value measurements and disclosures, require public business entities to disclose in their financial statement footnotes the estimated fair values of financial instruments. In addition to disclosure requirements, FASB’s standard on investments requires that our debt securities that are classified as available for sale and any equity securities which have readily determinable fair values be measured and reported at fair value in our statement of financial position. Certain individually identified loans are also reported at fair value, as explained in greater detail below, and foreclosed assets are carried at the lower of cost or fair value. FASB’s standard on financial instruments permits companies to report certain other financial assets and liabilities at fair value, but the Company has not elected the fair value option for any of those financial instruments. Fair value measurement and disclosure standards also establish a framework for measuring fair values. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability, in an orderly transaction between market participants on the measurement date. Further, the standards establish a fair value hierarchy that encourages an entity to maximize the use of observable inputs and limit the use of unobservable inputs when measuring fair values. The standards describe three levels of inputs that may be used to measure fair values: ● Level 1 : Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. ● Level 2 : Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data. ● Level 3 : Significant unobservable inputs that reflect a company’s own assumptions about the factors that market participants would likely consider in pricing an asset or liability. Fair value estimates are made at a specific point in time based on relevant market data and information about the financial instruments. Fair value disclosures for deposits include demand deposits, which are, by definition, equal to the amount payable on demand at the reporting date. Fair value calculations for loans reflect exit pricing, and incorporate our assumptions with regard to the impact of prepayments on future cash flows and credit quality adjustments based on risk characteristics of various financial instruments, among other things. Since the estimates are subjective and involve uncertainties and matters of significant judgment they cannot be determined with precision, and changes in assumptions could significantly alter the fair values presented. ​ Estimated fair values for the Company’s financial instruments are as follows, as of the dates noted: Fair Value of Financial Instruments (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 83,506 ​ $ 83,506 ​ $ — ​ $ — ​ $ 83,506 Investment securities available-for-sale ​ ​ 1,040,920 ​ ​ — ​ ​ 988,921 ​ ​ 51,999 ​ ​ 1,040,920 Investment securities held-to-maturity ​ ​ 332,728 ​ ​ — ​ ​ 325,607 ​ ​ — ​ ​ 325,607 Loans, net held for investment ​ ​ 2,010,807 ​ ​ — ​ ​ — ​ ​ 1,896,715 ​ ​ 1,896,715 Individually evaluated collateral dependent loans ​ ​ 95 ​ ​ — ​ ​ 95 ​ ​ — ​ ​ 95 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,948,988 ​ ​ 1,041,748 ​ ​ 1,906,751 ​ ​ — ​ ​ 2,948,499 Repurchase agreements ​ ​ 94,061 ​ ​ — ​ ​ 94,061 ​ ​ — ​ ​ 94,061 Other borrowings ​ ​ 216,800 ​ ​ — ​ ​ 216,480 ​ ​ — ​ ​ 216,480 Long-term borrowings ​ ​ 49,236 ​ ​ — ​ ​ 41,038 ​ ​ — ​ ​ 41,038 Subordinated debentures ​ ​ 35,526 ​ ​ — ​ ​ 32,757 ​ ​ — ​ ​ 32,757 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 77,131 ​ $ 77,131 ​ $ — ​ $ — ​ $ 77,131 Investment securities available for sale ​ ​ 934,923 ​ ​ — ​ ​ 877,488 ​ ​ 57,435 ​ ​ 934,923 Investment securities held-to-maturity ​ ​ 336,881 ​ ​ — ​ ​ 328,011 ​ ​ — ​ ​ 328,011 Loans, net held for investment ​ ​ 2,011,616 ​ ​ — ​ ​ — ​ ​ 1,909,822 ​ ​ 1,909,822 Individually evaluated collateral dependent loans ​ ​ 18,141 ​ ​ — ​ ​ 18,141 ​ ​ — ​ ​ 18,141 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,846,164 ​ ​ 1,088,199 ​ ​ 1,756,443 ​ ​ — ​ ​ 2,844,642 Repurchase agreements ​ ​ 109,169 ​ ​ — ​ ​ 109,169 ​ ​ — ​ ​ 109,169 Other borrowings ​ ​ 219,000 ​ ​ — ​ ​ 219,000 ​ ​ — ​ ​ 219,000 Long-term borrowings ​ ​ 49,214 ​ ​ — ​ ​ 42,775 ​ ​ — ​ ​ 42,775 Subordinated debentures ​ ​ 35,481 ​ ​ — ​ ​ 37,171 ​ ​ — ​ ​ 37,171 ​ For financial asset categories that were carried on our balance sheet at fair value as of March 31, 2023 and December 31, 2022, the Company used the following methods and significant assumptions: ● Investment securities : Fair values are determined by obtaining quoted prices on nationally recognized securities exchanges or by matrix pricing, which is a mathematical technique used widely in the industry to value debt securities by relying on their relationship to other benchmark quoted securities. ● Collateral-dependent loans : Collateral-dependent loans are carried at fair value when foreclosure is probable or repayment is expected through the sale or operation of collateral and borrower is experiencing financial difficulty. ● Foreclosed assets : Repossessed real estate (known as other real estate owned, or “OREO”) and other foreclosed assets are carried at the lower of cost or fair value. Fair value is the appraised value less expected disposition costs for OREO; fair values for any other foreclosed assets are represented by estimated sales proceeds as determined using reasonably available sources. Foreclosed assets for which appraisals can be feasibly obtained are periodically measured for impairment using updated appraisals. Fair values for other foreclosed assets are adjusted as necessary, subsequent to a periodic reevaluation of expected cash flows and the timing of resolution. If impairment is determined to exist, the book value of a foreclosed asset is immediately written down to its estimated impaired value through the income statement, thus the carrying amount is equal to the fair value and there is no valuation allowance. Assets reported at fair value on a recurring basis are summarized below: Fair Value Measurements – Recurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at March 31, 2023, using ​ ​ ​ ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Realized Gain/(Loss) (Level 3) Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 105,327 ​ $ — ​ $ 105,327 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 115,652 ​ ​ — ​ ​ 115,652 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 206,963 ​ ​ — ​ ​ 206,963 ​ ​ — Corporate bonds ​ ​ — ​ ​ — ​ ​ 51,999 ​ ​ 51,999 ​ ​ — Collateralized loan obligations ​ ​ — ​ ​ 560,979 ​ ​ — ​ ​ 560,979 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 988,921 ​ $ 51,999 ​ $ 1,040,920 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2022, using ​ ​ ​ ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Realized Gain/(Loss) (Level 3) Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 50,599 ​ $ — ​ $ 50,599 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 122,532 ​ ​ — ​ ​ 122,532 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 205,980 ​ ​ — ​ ​ 205,980 ​ ​ — Corporate bonds ​ ​ — ​ ​ — ​ ​ 57,435 ​ ​ 57,435 ​ ​ — Collateralized loan obligations ​ ​ — ​ ​ 498,377 ​ ​ — ​ ​ 498,377 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 877,488 ​ $ 57,435 ​ $ 934,923 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements - Level 3 Recurring ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateralized Loan Obligations Corporate Bonds ​ ​ 2023 ​ 2022 ​ 2023 ​ 2022 Balance of recurring Level 3 assets at January 1, ​ $ — ​ $ 195,707 ​ $ 57,435 ​ $ 27,530 Total gains or losses for the period: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in other comprehensive income ​ ​ — ​ ​ — ​ ​ (5,436) ​ ​ — Purchases ​ ​ — ​ ​ — ​ ​ — ​ ​ 13,354 Transfers out of Level 3 ​ ​ — ​ ​ (195,707) ​ ​ — ​ ​ — Balance of recurring Level 3 assets at March 31, ​ $ — ​ $ — ​ $ 51,999 ​ $ 40,884 ​ ​ All of the Company’s collateralized loan obligations with a fair value of $195.7 million as of January 1, 2022 were transferred from Level 3 to Level 2 during the first quarter of 2022 because observable market data became available due to a significant increase in trading volume for these securities during that time. ​ Assets reported at fair value on a nonrecurring basis are summarized below: Fair Value Measurements – Nonrecurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at March 31, 2023, using ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Individually evaluated collateral dependent loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 95 ​ ​ — ​ ​ 95 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total collateral dependent loans ​ $ — ​ $ 95 ​ $ — ​ $ 95 Foreclosed assets ​ $ — ​ $ — ​ $ — ​ $ — Total assets measured on a nonrecurring basis ​ $ — ​ $ 95 ​ $ — ​ $ 95 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2022, using ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Individually evaluated collateral dependent loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ 15,391 ​ ​ — ​ ​ 15,391 Total real estate ​ ​ — ​ ​ 15,391 ​ ​ — ​ ​ 15,391 Agricultural ​ ​ — ​ ​ 2,750 ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ 2,750 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total collateral dependent loans ​ $ — ​ $ 18,141 ​ $ — ​ $ 18,141 Foreclosed assets ​ $ — ​ $ — ​ $ — ​ $ — Total assets measured on a nonrecurring basis ​ $ — ​ $ 18,141 ​ $ — ​ $ 18,141 ​ The table above includes collateral-dependent loan balances for which a specific reserve has been established or on which a write-down has been taken. Information on the Company’s total collateral dependent loan balances and specific loss reserves associated with those balances is included in Note 10 below. The unobservable inputs are based on Management’s best estimates of appropriate discounts in arriving at fair market value. Adjusting any of those inputs could result in a significantly lower or higher fair value measurement. For example, an increase or decrease in actual loss rates would create a directionally opposite change in the fair value of unsecured individually identified loans.

Investments

Investments	3 Months Ended
	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Note 9 – Investments Investment Securities Pursuant to FASB’s guidance on accounting for debt securities, available for sale securities are carried on the Company’s financial statements at their estimated fair market values, with monthly tax-effected “mark-to-market” adjustments made vis-à-vis accumulated other comprehensive income in shareholders’ equity. Held-to-maturity securities are carried on the Company’s financial statements at their amortized cost, net of the allowance for credit losses. The amortized cost, estimated fair value, and allowance for credit losses of available-for-sale and held-to-maturity investment securities are as follows: Amortized Cost And Estimated Fair Value (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ Amortized Cost Gross Unrealized Gains Gross Unrealized Losses ​ Allowance for Credit Losses Estimated Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 105,600 ​ $ 66 ​ $ (339) ​ $ — ​ $ 105,327 Mortgage-backed securities ​ ​ 122,977 ​ ​ — ​ ​ (7,325) ​ ​ — ​ ​ 115,652 State and political subdivisions ​ ​ 222,609 ​ ​ 785 ​ ​ (16,431) ​ ​ — ​ ​ 206,963 Corporate bonds ​ ​ 65,190 ​ ​ — ​ ​ (13,191) ​ ​ — ​ ​ 51,999 Collateralized loan obligations ​ ​ 574,041 ​ ​ 62 ​ ​ (13,124) ​ ​ — ​ ​ 560,979 Total available-for-sale securities ​ $ 1,090,417 ​ $ 913 ​ $ (50,410) ​ $ — ​ $ 1,040,920 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses ​ Estimated Fair Value Allowance for Credit Losses Held-to-maturity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 5,795 ​ $ — ​ $ (602) ​ $ 5,193 ​ $ — Mortgage-backed securities ​ ​ 153,667 ​ ​ — ​ ​ (10,168) ​ ​ 143,499 ​ ​ — State and political subdivisions ​ ​ 173,329 ​ ​ 3,586 ​ ​ — ​ ​ 176,915 ​ ​ (63) Total held-to-maturity securities ​ $ 332,791 ​ $ 3,586 ​ $ (10,770) ​ $ 325,607 ​ $ (63) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Amortized Cost Gross Unrealized Gains Gross Unrealized Losses ​ Allowance for Credit Losses Estimated Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 50,625 ​ $ 49 ​ $ (75) ​ $ — ​ $ 50,599 Mortgage-backed securities ​ ​ 129,948 ​ ​ — ​ ​ (7,416) ​ ​ — ​ ​ 122,532 State and political subdivisions ​ ​ 223,810 ​ ​ 607 ​ ​ (18,437) ​ ​ — ​ ​ 205,980 Corporate bonds ​ ​ 65,164 ​ ​ 10 ​ ​ (7,739) ​ ​ — ​ ​ 57,435 Collateralized loan obligations ​ ​ 515,032 ​ ​ 60 ​ ​ (16,715) ​ ​ — ​ ​ 498,377 Total available-for-sale securities ​ $ 984,579 ​ $ 726 ​ $ (50,382) ​ $ — ​ $ 934,923 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Cost ​ Gross Unrecognized Gains ​ Gross Unrecognized Losses ​ Estimated Fair Value ​ Allowance for Credit Losses Held-to-maturity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 6,047 ​ $ — ​ $ (621) ​ $ 5,426 ​ $ — Mortgage-backed securities ​ ​ 157,473 ​ ​ — ​ ​ (9,915) ​ ​ 147,558 ​ ​ — State and political subdivisions ​ ​ 173,424 ​ ​ 1,603 ​ ​ — ​ ​ 175,027 ​ ​ (63) Total held-to-maturity securities ​ $ 336,944 ​ $ 1,603 ​ $ (10,536) ​ $ 328,011 ​ $ (63) ​ ​ The Company reassessed classification of certain investments and effective April 1, 2022 the Company transferred $162.1 million of Agency, Mortgaged-Backed and Municipal securities from the available-for-sale designation to the held-to-maturity designation. On October 1, 2022, a similar transfer of $198.3 million securities from available for sale to held-to-maturity was completed. The securities were transferred at their fair value as of the transfer date, with the related unrealized gain or loss as of the date of transfer included in the amortized cost basis of the transferred security and subject to amortization or accretion over each security’s remaining life. An unrealized loss of $30.1 million, on securities transferred from the available-for-sale to held-to-maturity categorization, remains as of March 31, 2023 and is included in accumulated other comprehensive income, net of tax. The remaining unrealized loss on the securities transferred from available-for-sale to held-to-maturity, will be accreted over the remaining term of the securities, with the amortized-cost basis of these securities and accumulated comprehensive income each increasing over time. A discounted-cash-flow reserve calculation was performed upon the transfer of these securities into the held-to-maturity designation and is updated on a quarterly basis. As of March 31, 2023, an allowance for credit losses of ​ ​ The following table summarizes available-for-sale debt securities that were in an unrealized loss position for which an ACL has not been recorded, based on the length of time the individual securities have been in an unrealized loss position, including the number of available-for-sale debt securities in an unrealized loss position, as of the dates indicated below. Investment Portfolio - Unrealized Losses (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ ​ Less than twelve months ​ Twelve months or more ​ Total ​ Number of Securities Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies 19 ​ $ (297) ​ $ 68,303 ​ $ (42) ​ $ 958 ​ $ (339) ​ $ 69,261 Mortgage-backed securities 338 ​ ​ (1,310) ​ ​ 29,985 ​ ​ (6,015) ​ ​ 85,644 ​ ​ (7,325) ​ ​ 115,629 State and political subdivisions 236 ​ ​ (2,747) ​ ​ 73,118 ​ ​ (13,684) ​ ​ 77,094 ​ ​ (16,431) ​ ​ 150,212 Corporate bonds 52 ​ ​ (3,074) ​ ​ 21,667 ​ ​ (10,117) ​ ​ 30,332 ​ ​ (13,191) ​ ​ 51,999 Collateralized loan obligations 65 ​ ​ (1,258) ​ ​ 148,195 ​ ​ (11,866) ​ ​ 384,889 ​ ​ (13,124) ​ ​ 533,084 Total available-for-sale 710 ​ $ (8,686) ​ $ 341,268 ​ $ (41,724) ​ $ 578,917 ​ $ (50,410) ​ $ 920,185 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ Less than twelve months ​ Twelve months or more ​ Total ​ Number of Securities Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies 8 ​ $ (75) ​ $ 27,550 ​ $ — ​ $ — ​ $ (75) ​ $ 27,550 Mortgage-backed securities 340 ​ ​ (7,108) ​ ​ 119,260 ​ ​ (308) ​ ​ 3,227 ​ ​ (7,416) ​ ​ 122,487 State and political subdivisions 252 ​ ​ (15,732) ​ ​ 147,635 ​ ​ (2,705) ​ ​ 9,807 ​ ​ (18,437) ​ ​ 157,442 Corporate bonds 52 ​ ​ (7,644) ​ ​ 54,636 ​ ​ (95) ​ ​ 405 ​ ​ (7,739) ​ ​ 55,041 Collateralized loan obligations 60 ​ ​ (10,152) ​ ​ 309,102 ​ ​ (6,563) ​ ​ 169,743 ​ ​ (16,715) ​ ​ 478,845 Total available-for-sale 712 ​ $ (40,711) ​ $ 658,183 ​ $ (9,671) ​ $ 183,182 ​ $ (50,382) ​ $ 841,365 ​ ​ The table below summarizes the Company’s gross realized gains and losses as well as gross proceeds from the sales of securities, for the periods indicated: Investment Portfolio - Realized Gains/(Losses) (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ 2023 2022 Proceeds from sales, calls and maturities of securities available for sale ​ $ 36,213 ​ $ 28,781 Gross gains on sales, calls and maturities of securities available for sale ​ ​ 45 ​ ​ 1,032 Net gains on sale of securities available for sale ​ $ 45 ​ $ 1,032 ​ The amortized cost and estimated fair value of investment securities available-for-sale and held-to-maturity at March 31, 2023 and December 31, 2022 are shown below, grouped by the remaining time to contractual maturity dates. The expected life of investment securities may not be consistent with contractual maturity dates since the issuers of the securities might have the right to call or prepay obligations with or without penalties. Estimated Fair Value of Contractual Maturities (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ Available-for-Sale ​ Held-to-Maturity ​ Amortized Cost Fair Value Amortized Cost Fair Value Maturing within one year ​ $ 24,690 ​ $ 24,749 ​ $ 668 ​ $ 666 Maturing after one year through five years ​ ​ 50,222 ​ ​ 49,963 ​ ​ 2,052 ​ ​ 2,018 Maturing after five years through ten years ​ ​ 131,381 ​ ​ 117,486 ​ ​ 18,754 ​ ​ 17,313 Maturing after ten years ​ ​ 187,107 ​ ​ 172,090 ​ ​ 157,650 ​ ​ 162,111 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 122,977 ​ ​ 115,652 ​ ​ 153,667 ​ ​ 143,499 Collateralized loan obligations ​ ​ 574,040 ​ ​ 560,980 ​ ​ — ​ ​ — ​ ​ $ 1,090,417 ​ $ 1,040,920 ​ $ 332,791 ​ $ 325,607 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Available-for-Sale ​ Held-to-Maturity ​ Amortized Cost Fair Value Amortized Cost Fair Value Maturing within one year ​ $ 12,141 ​ $ 12,184 $ 672 ​ $ 666 Maturing after one year through five years ​ ​ 21,013 ​ ​ 20,831 ​ ​ 2,059 ​ ​ 2,032 Maturing after five years through ten years ​ ​ 119,649 ​ ​ 111,513 ​ ​ 19,048 ​ ​ 17,431 Maturing after ten years ​ ​ 186,796 ​ ​ 169,486 ​ ​ 157,692 ​ ​ 160,324 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 129,948 ​ ​ 122,532 ​ ​ 157,473 ​ ​ 147,558 Collateralized loan obligations ​ ​ 515,032 ​ ​ 498,377 ​ ​ — ​ ​ — ​ ​ $ 984,579 ​ $ 934,923 ​ $ 336,944 ​ $ 328,011 ​ At March 31, 2023, the Company’s investment portfolio included 499 municipal bonds issued by 409 different government municipalities and agencies located within 37 different states, with an aggregate fair value of $383.9 million. The largest exposure to any single municipality or agency was a combined $5.2 million (fair value) in general obligation bonds issued by the City of New York (NY). In addition, the Company owned At December 31, 2022, the Company’s investment portfolio included 501 municipal bonds issued by 406 different government municipalities and agencies located within 37 states, with an aggregate fair value of $381.0 million. The largest exposure to any single municipality or agency was a combined $5.1 million (fair value) in general obligation bonds issued by the City of New York (NY). In addition, the company owned 51 subordinated debentures issued by bank holding companies totaling $57.4 million (fair value). The Company’s investments in bonds issued by corporations, states, municipalities and political subdivisions are evaluated in accordance with Financial Institution Letter 48-2012, issued by the FDIC, “Revised Standards of Creditworthiness for Investment Securities,” and other regulatory guidance. Credit ratings are considered in our analysis only as a guide to the historical default rate associated with similarly rated bonds. There have been no significant differences in our internal analyses compared with the ratings assigned by the third-party credit rating agencies. ​ The following table summarizes the amortized cost and fair values of general obligation and revenue bonds in the Company’s investment securities portfolio at the indicated dates, identifying the state in which the issuing municipality or agency operates for our largest geographic concentrations: Revenue and General Obligation Bonds by Location (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market General obligation bonds Cost Value Cost Value State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ $ 152,779 ​ $ 147,874 ​ $ 153,209 ​ $ 146,667 California ​ ​ 65,368 ​ ​ 61,651 ​ ​ 65,758 ​ ​ 60,701 Washington ​ ​ 21,597 ​ ​ 21,498 ​ ​ 21,635 ​ ​ 21,312 Other (29 & 26 states, respectively) ​ ​ 101,954 ​ ​ 100,596 ​ ​ 102,336 ​ ​ 100,480 Total general obligation bonds ​ ​ 341,698 ​ ​ 331,619 ​ ​ 342,938 ​ ​ 329,160 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue bonds ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ ​ 9,209 ​ ​ 8,852 ​ ​ 9,216 ​ ​ 8,840 California ​ ​ 3,790 ​ ​ 3,728 ​ ​ 3,788 ​ ​ 3,673 Washington ​ ​ 4,073 ​ ​ 3,523 ​ ​ 4,083 ​ ​ 3,490 Other (20 & 15 states, respectively) ​ ​ 37,168 ​ ​ 36,156 ​ ​ 37,209 ​ ​ 35,844 Total revenue bonds ​ ​ 54,240 ​ ​ 52,259 ​ ​ 54,296 ​ ​ 51,847 Total obligations of states and political subdivisions ​ $ 395,938 ​ $ 383,878 ​ $ 397,234 ​ $ 381,007 ​ ​ The revenue bonds in the Company’s investment securities portfolios were issued by government municipalities and agencies to fund public services such as utilities (water, sewer, and power), educational facilities, and general public and economic improvements. The primary sources of revenue for these bonds are delineated in the table below, which shows the amortized cost and fair market values for the largest revenue concentrations as of the indicated dates. Revenue Bonds by Type (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market Revenue bonds Cost Value Cost Value Revenue source: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Water ​ $ 21,220 ​ $ 20,098 ​ $ 21,246 ​ $ 19,977 Lease ​ ​ 7,027 ​ ​ 7,284 ​ ​ 7,035 ​ ​ 7,250 Sewer ​ ​ 6,554 ​ ​ 6,469 ​ ​ 6,560 ​ ​ 6,405 Sales tax revenue ​ ​ 4,117 ​ ​ 3,969 ​ ​ 4,123 ​ ​ 3,934 Local or GTD housing ​ ​ 3,038 ​ ​ 2,971 ​ ​ 3,040 ​ ​ 2,951 Other (9 and 10 sources, respectively) ​ ​ 12,284 ​ ​ 11,468 ​ ​ 12,292 ​ ​ 11,330 Total revenue bonds ​ $ 54,240 ​ $ 52,259 ​ $ 54,296 ​ $ 51,847 ​ Low-Income Housing Tax Credit (“LIHTC”) Fund Investments The Company has the ability to invest in limited partnerships which own housing projects that qualify for federal and/or California state tax credits, by mandating a specified percentage of low-income tenants for each project. The primary investment return comes from tax credits that flow through to investors. Because rent levels are lower than standard market rents and the projects are generally highly leveraged, each project also typically generates tax-deductible operating losses that are allocated to the limited partners for tax purposes. The Company currently has investments in four different LIHTC fund limited partnerships made in 2014, 2015, and two in 2022, all of which were California-focused funds that help the Company meet its obligations under the Community Reinvestment Act. We utilize the cost method of accounting for our LIHTC fund investments, under which we initially record on our balance sheet an asset that represents the total cash expected to be invested over the life of the partnership. Any commitments or contingent commitments for future investment are reflected as a liability. The income statement reflects tax credits and any other tax benefits from these investments “below the line” within our income tax provision, while the initial book value of the investment is amortized on a straight-line basis as an offset to noninterest income, over the time period in which the tax credits and tax benefits are expected to be received. As of March 31, 2023, our total LIHTC investment book balance was $9.9 million, which includes $7.4 million in remaining commitments for additional capital contributions. There were $0.1 million in tax credits derived from our LIHTC investments that were recognized during the three months ended March 31, 2022, and amortization expense of $0.2 million associated with those investments was netted against pre-tax noninterest income for the same time period. Our LIHTC investments are evaluated annually for potential impairment, and we have concluded that the carrying value of the investments is stated fairly and is not impaired. As of December 31, 2022, our total LIHTC investment book balance was $10.1 million, which includes $7.4 million in remaining commitments for additional capital contributions. There were $0.5 million in tax credits derived from our LIHTC investments that were recognized during the year ended December 31, 2022, and amortization expense of $0.5 million associated with those investments was netted against pre-tax noninterest income for the same time period.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2023
Receivables [Abstract]
Loans and Allowance for Credit Losses	Note 10 – Loans and Allowance for Credit Losses We adopted the new current expected credit loss accounting guidance, CECL, and all related amendments as of January 1, 2022. The following table presents loans by class as of March 31, 2023 and December 31, 2022. Accrued interest receivable on loans of $5.2 million and $6.4 million at March 31, 2023 and December 31, 2022 respectively is not included in the loans included in the table below but is included in other assets on the Company’s balance sheet. The December 31, 2022 balance in 1-4 family closed end loans reflects year-to-date 2022 loan purchases of $173.1 million. The majority of the disclosures in this footnote are prepared at the class level which is equivalent to the call report or call code classification. The final table in this section separates a roll forward of the Allowance for Credit Losses at the portfolio segment level. ​ ​ ​ ​ ​ ​ ​ ​ Loan Distribution ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ March 31, 2023 December 31, 2022 Real estate: ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 15,653 ​ $ 18,412 1-4 family - closed-end ​ ​ 414,232 ​ ​ 416,116 Equity lines ​ ​ 18,953 ​ ​ 21,330 Multi-family residential ​ ​ 92,220 ​ ​ 91,691 Commercial real estate - owner occupied ​ ​ 313,863 ​ ​ 323,873 Commercial real estate - non-owner occupied ​ ​ 912,544 ​ ​ 893,846 Farmland ​ ​ 92,906 ​ ​ 113,394 Total real estate ​ ​ 1,860,371 ​ ​ 1,878,662 Agricultural ​ ​ 26,392 ​ ​ 27,936 Commercial and industrial ​ ​ 74,726 ​ ​ 76,779 Mortgage warehouse lines ​ ​ 68,472 ​ ​ 65,439 Consumer loans ​ ​ 4,007 ​ ​ 4,124 Subtotal ​ ​ 2,033,968 ​ ​ 2,052,940 Net deferred loan fees and costs ​ ​ 24 ​ ​ (123) Loans, amortized cost basis ​ ​ 2,033,992 ​ ​ 2,052,817 Allowance for credit losses ​ ​ (23,090) ​ ​ (23,060) Net Loans ​ $ 2,010,902 ​ $ 2,029,757 ​ ​ The following tables present the amortized cost basis of nonaccrual loans, according to loan class, with and without individually evaluated reserves as of March 31, 2023 and December 31, 2022 : ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ Nonaccrual Loans ​ ​ ​ ​ With no allowance for credit loss With an allowance for credit loss ​ Total ​ Loans Past Due 90+ Accruing Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 485 ​ ​ — ​ ​ 485 ​ ​ — Equity lines ​ ​ 93 ​ ​ — ​ ​ 93 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 78 ​ ​ — ​ ​ 78 ​ ​ — Total real estate ​ ​ 656 ​ ​ — ​ ​ 656 ​ ​ — Agricultural ​ ​ 71 ​ ​ — ​ ​ 71 ​ ​ — Commercial and industrial ​ ​ 75 ​ ​ 134 ​ ​ 209 ​ ​ 88 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ 1 ​ ​ 1 ​ ​ 2 ​ ​ — Total ​ $ 803 ​ $ 135 ​ $ 938 ​ $ 88 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Nonaccrual Loans ​ ​ ​ ​ With no allowance for credit loss With an allowance for credit loss ​ Total ​ Loans Past Due 90+ Accruing Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 629 ​ ​ — ​ ​ 629 ​ ​ — Equity lines ​ ​ 59 ​ ​ — ​ ​ 59 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 15,812 ​ ​ — ​ ​ 15,812 ​ ​ — Total real estate ​ ​ 16,500 ​ ​ — ​ ​ 16,500 ​ ​ — Agricultural ​ ​ 2,826 ​ ​ 29 ​ ​ 2,855 ​ ​ — Commercial and industrial ​ ​ 83 ​ ​ 134 ​ ​ 217 ​ ​ 940 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ 7 ​ ​ 7 ​ ​ — Total ​ $ 19,409 ​ $ 170 ​ $ 19,579 ​ $ 940 ​ ​ The Company did not recognize any interest on nonaccrual loans during 2022 and would have recognized an additional $0.04 million in interest income on nonaccrual loans had those loans not been designated as nonaccrual. The following table presents the amortized cost basis of collateral-dependent loans by class as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral Dependent Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ Amortized Cost ​ Individual Reserves ​ Amortized Cost ​ Individual Reserves Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 485 ​ ​ — ​ ​ 629 ​ ​ — Equity lines ​ ​ 93 ​ ​ — ​ ​ 59 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 78 ​ ​ — ​ ​ 15,812 ​ ​ — Total real estate ​ ​ 656 ​ ​ — ​ ​ 16,500 ​ ​ — Agricultural ​ ​ 71 ​ ​ — ​ ​ 2,826 ​ ​ — Commercial and industrial ​ ​ 210 ​ ​ 39 ​ ​ 217 ​ ​ 39 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total Loans ​ $ 937 ​ $ 39 ​ $ 19,543 ​ $ 39 ​ ​ During the first quarter of 2023 the amortized cost balance of collateral-dependent loans declined by 18.6 million due to the foreclosure and subsequent sale of Farmland and other Agricultural collateral related to a single borrower, as well as declines resulting from upgrades and payoffs. The weighted average loan-to-value ratio of collateral dependent loans was 17% at March 31, 2023. There were no collateral dependent loans in the process of foreclosure as of March 31, 2023. The following tables presents the aging of the amortized cost basis in past-due loans, according to class, as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ 30-59 Days Past Due 60-89 Days Past Due ​ Loans Past Due 90+ Days ​ Total Past Due ​ Loans not Past Due ​ Total Loans Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 15,596 ​ $ 15,596 1-4 family - closed-end ​ ​ 1,158 ​ ​ — ​ ​ 31 ​ ​ 1,189 ​ ​ 413,998 ​ ​ 415,187 Equity lines ​ ​ 1 ​ ​ 88 ​ ​ 35 ​ ​ 124 ​ ​ 19,139 ​ ​ 19,263 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 92,040 ​ ​ 92,040 Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 313,860 ​ ​ 313,860 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 909,884 ​ ​ 909,884 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 93,141 ​ ​ 93,141 Total real estate ​ ​ 1,159 ​ ​ 88 ​ ​ 66 ​ ​ 1,313 ​ ​ 1,857,658 ​ ​ 1,858,971 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 26,672 ​ ​ 26,672 Commercial and industrial ​ ​ 322 ​ ​ — ​ ​ 222 ​ ​ 544 ​ ​ 75,218 ​ ​ 75,762 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Consumer loans ​ ​ 30 ​ ​ — ​ ​ — ​ ​ 30 ​ ​ 4,085 ​ ​ 4,115 Total Loans ​ $ 1,511 ​ $ 88 ​ $ 288 ​ $ 1,887 ​ $ 2,032,105 ​ $ 2,033,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ 30-59 Days Past Due 60-89 Days Past Due ​ Loans Past Due 90+ Days ​ Total Past Due ​ Loans not Past Due ​ Total Loans Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 18,358 ​ $ 18,358 1-4 family - closed-end ​ ​ 1,259 ​ ​ 87 ​ ​ 179 ​ ​ 1,525 ​ ​ 415,568 ​ ​ 417,093 Equity lines ​ ​ 35 ​ ​ — ​ ​ — ​ ​ 35 ​ ​ 21,603 ​ ​ 21,638 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 91,485 ​ ​ 91,485 Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 323,895 ​ ​ 323,895 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 891,195 ​ ​ 891,195 Farmland ​ ​ 522 ​ ​ 97 ​ ​ 15,393 ​ ​ 16,012 ​ ​ 97,582 ​ ​ 113,594 Total real estate ​ ​ 1,816 ​ ​ 184 ​ ​ 15,572 ​ ​ 17,572 ​ ​ 1,859,686 ​ ​ 1,877,258 Agricultural ​ ​ — ​ ​ — ​ ​ 2,778 ​ ​ 2,778 ​ ​ 25,416 ​ ​ 28,194 Commercial and industrial ​ ​ 19 ​ ​ 134 ​ ​ 940 ​ ​ 1,093 ​ ​ 76,601 ​ ​ 77,694 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 65,439 ​ ​ 65,439 Consumer loans ​ ​ 15 ​ ​ — ​ ​ — ​ ​ 15 ​ ​ 4,217 ​ ​ 4,232 Total Loans ​ $ 1,850 ​ $ 318 ​ $ 19,290 ​ $ 21,458 ​ $ 2,031,359 ​ $ 2,052,817 ​ Loan Modifications The Company may agree to different types of concessions when modifying a loan. There were no modifications to borrowers experiencing financial difficulty, including principal forgiveness, rate reductions, payment deferral, or term extension, during the three months ended March 31, 2023. For the three months ended March 31, 2022, there were no new TDRs and no modifications of existing TDRs. The Company monitors the credit quality of loans on a continuous basis using the regulatory and accounting classifications of pass, special mention and substandard to characterize and qualify the associated credit risk. Loans classified as “loss” are immediately charged-off. The Company uses the following definitions of risk classifications: Pass – Loans listed as pass include larger non-homogeneous loans not meeting the risk rating definitions below and smaller, homogeneous loans not assessed on an individual basis. Special Mention – Loans classified as special mention have the potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard – Loans classified as substandard are those loans with clear and well-defined weaknesses such as a highly leveraged position, unfavorable financial operating results and/or trends, or uncertain repayment sources or poor financial condition, which may jeopardize ultimate recoverability of the debt. The following tables present the amortized cost of loans by credit quality classification in addition to loan vintage as of March 31, 2023: Loan Credit Quality by Vintage (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Revolving Loans Amortized Cost ​ Total Loans Other construction/land ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ — ​ $ — ​ $ — ​ $ 3,792 ​ $ 712 ​ $ 1,892 ​ $ 9,132 ​ $ 15,528 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 68 ​ ​ — ​ ​ — ​ ​ — ​ ​ 68 Subtotal ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,860 ​ ​ 712 ​ ​ 1,892 ​ ​ 9,132 ​ ​ 15,596 1-4 family - closed-end ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 109,728 ​ ​ 237,151 ​ ​ 7,761 ​ ​ 2,038 ​ ​ 55,919 ​ ​ — ​ ​ 412,597 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,603 ​ ​ — ​ ​ 1,603 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 987 ​ ​ — ​ ​ 987 Subtotal ​ ​ — ​ ​ 109,728 ​ ​ 237,151 ​ ​ 7,761 ​ ​ 2,038 ​ ​ 58,509 ​ ​ — ​ ​ 415,187 Equity lines ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 46 ​ ​ 332 ​ ​ 400 ​ ​ 322 ​ ​ 363 ​ ​ 16,856 ​ ​ 18,319 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 20 ​ ​ — ​ ​ — ​ ​ 454 ​ ​ 474 Substandard ​ ​ — ​ ​ — ​ ​ 114 ​ ​ — ​ ​ — ​ ​ — ​ ​ 356 ​ ​ 470 Subtotal ​ ​ — ​ ​ 46 ​ ​ 446 ​ ​ 420 ​ ​ 322 ​ ​ 363 ​ ​ 17,666 ​ ​ 19,263 Multi-family residential ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 1,892 ​ ​ 23,696 ​ ​ 511 ​ ​ 11,348 ​ ​ 655 ​ ​ 23,368 ​ ​ 27,341 ​ ​ 88,811 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,229 ​ ​ — ​ ​ 3,229 Subtotal ​ ​ 1,892 ​ ​ 23,696 ​ ​ 511 ​ ​ 11,348 ​ ​ 655 ​ ​ 26,597 ​ ​ 27,341 ​ ​ 92,040 Commercial real estate - OO ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 3,275 ​ ​ 38,637 ​ ​ 24,015 ​ ​ 63,603 ​ ​ 36,273 ​ ​ 138,028 ​ ​ 5,839 ​ ​ 309,670 Special mention ​ ​ — ​ ​ 279 ​ ​ — ​ ​ 203 ​ ​ 341 ​ ​ 1,329 ​ ​ — ​ ​ 2,152 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,571 ​ ​ 467 ​ ​ 2,038 Subtotal ​ ​ 3,275 ​ ​ 38,916 ​ ​ 24,015 ​ ​ 63,806 ​ ​ 36,614 ​ ​ 140,928 ​ ​ 6,306 ​ ​ 313,860 Commercial real estate - NOO ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 31,278 ​ ​ 84,417 ​ ​ 19,416 ​ ​ 375,899 ​ ​ 24,797 ​ ​ 207,388 ​ ​ 69,399 ​ ​ 812,594 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,559 ​ ​ — ​ ​ 4,165 ​ ​ — ​ ​ 72,724 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 14,653 ​ ​ — ​ ​ 9,913 ​ ​ — ​ ​ 24,566 Subtotal ​ ​ 31,278 ​ ​ 84,417 ​ ​ 19,416 ​ ​ 459,111 ​ ​ 24,797 ​ ​ 221,466 ​ ​ 69,399 ​ ​ 909,884 Farmland ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 27,996 ​ ​ 1,350 ​ ​ 3,993 ​ ​ 1,746 ​ ​ 32,519 ​ ​ 15,428 ​ ​ 83,032 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,023 ​ ​ — ​ ​ 3,023 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 7,086 ​ ​ — ​ ​ 7,086 Subtotal ​ ​ — ​ ​ 27,996 ​ ​ 1,350 ​ ​ 3,993 ​ ​ 1,746 ​ ​ 42,628 ​ ​ 15,428 ​ ​ 93,141 Agricultural ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 3,475 ​ ​ 7,509 ​ ​ 425 ​ ​ 438 ​ ​ 18 ​ ​ 2,667 ​ ​ 11,619 ​ ​ 26,151 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 450 ​ ​ 450 Substandard ​ ​ — ​ ​ — ​ ​ 71 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 71 Subtotal ​ ​ 3,475 ​ ​ 7,509 ​ ​ 496 ​ ​ 438 ​ ​ 18 ​ ​ 2,667 ​ ​ 12,069 ​ ​ 26,672 Commercial and industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,089 ​ ​ 4,302 ​ ​ 3,893 ​ ​ 7,024 ​ ​ 5,857 ​ ​ 10,590 ​ ​ 33,439 ​ ​ 67,194 Special mention ​ ​ — ​ ​ 184 ​ ​ 119 ​ ​ 3,006 ​ ​ 41 ​ ​ 1,097 ​ ​ 3,772 ​ ​ 8,219 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 72 ​ ​ 208 ​ ​ 69 ​ ​ 349 Subtotal ​ ​ 2,089 ​ ​ 4,486 ​ ​ 4,012 ​ ​ 10,030 ​ ​ 5,970 ​ ​ 11,895 ​ ​ 37,280 ​ ​ 75,762 Mortgage warehouse lines ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Subtotal ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Consumer loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 885 ​ ​ 397 ​ ​ 181 ​ ​ 133 ​ ​ 101 ​ ​ 303 ​ ​ 2,049 ​ ​ 4,049 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 19 ​ ​ 12 ​ ​ 17 ​ ​ 14 ​ ​ 62 Substandard ​ ​ 2 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2 ​ ​ 4 Subtotal ​ ​ 887 ​ ​ 397 ​ ​ 181 ​ ​ 152 ​ ​ 113 ​ ​ 320 ​ ​ 2,065 ​ ​ 4,115 Total ​ $ 42,896 ​ $ 297,191 ​ $ 287,578 ​ $ 560,919 ​ $ 72,985 ​ $ 507,265 ​ $ 265,158 ​ $ 2,033,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross charge-offs ​ $ 437 ​ $ 13 ​ $ 250 ​ $ — ​ $ — ​ $ 1,280 ​ ​ ​ ​ ​ ​ ​ CECL replaces the legacy accounting for loans designated as purchased credit impaired (“PCI”) with loans designated as purchased credit deteriorated (“PCD”). PCD loans are loans acquired or purchased, which as of acquisition, had evidence of more than insignificant credit deterioration since origination. Due to the immaterial balance in the Company’s PCI loans as of December 31, 2021 management elected not to transition these loans into the PCD designation. As of March 31, 2023 the Company had loans categorized as PCD. As noted in footnote 3, on January 1, 2022 the Company implemented CECL and increased our ACL, previously the allowance for loan losses, with a $9.5 million cumulative adjustment. The Company’s ACL is calculated quarterly, with any difference in the calculated ACL and the recorded ACL trued-up through an entry to the provision for credit losses. Management calculates the quantitative portion of collectively evaluated reserves for all loan categories, with the exception of Farmland, Agricultural Production and Consumer loans, using a discounted cash flow (“DCF”) methodology. For purposes of calculating the quantitative portion of collectively evaluated reserves on Farmland, Agricultural Production, and Consumer categories a Remaining Life methodology is utilized. For purposes of estimating the Company’s ACL, Management generally evaluates collectively evaluated loans by Federal Call code in order to group loans with similar risk characteristics together, however management has grouped loans in selected call codes together in determining portfolio segments, due to similar risk characteristics and reserve methodologies used for certain call code classifications. The DCF quantitative reserve methodology incorporates the consideration of probability of default (“PD”) and loss given default (“LGD”) estimates to estimate periodic losses. The PD estimates are derived through the application of reasonable and supportable economic forecasts to call code specific regression models, derived from the consideration of historical bank-specific and peer loss-rate data. The loss rate data has been regressed against benchmark economic indicators, for which reasonable and supportable forecasts exist, in the development of the call-code specific regression models. Regression models are generally refreshed on an annual basis, in order to pull in more recent loss rate data. Reasonable and supportable forecasts of the selected economic metric are then input into the regression model to calculate an expected default rate. The expected default rates are then applied to expected monthly loan balances estimated through the consideration of contractual repayment terms and expected prepayments. The Company utilizes a four-quarter forecast period, after which the expected default rates revert to the historical average for each call code, over a four-quarter reversion period, on a straight-line basis. The prepayment assumptions applied to expected cash flow over the contractual life of the loans are estimated based on historical, bank-specific experience, peer data and the consideration of current and expected conditions and circumstances including the level of interest rates. The prepayment assumptions may be updated by Management in the event that changing conditions impact Management’s estimate or additional historical data gathered has resulted in the need for a reevaluation. LGD utilized in the DCF is derived from the application of the Frye-Jacobs theory which relates LGD to PD based on historical peer data, as calculated by a third-party. Economic forecasts are considered over a four-quarter forecast period, with reversion to mean occurring on a straight-line basis over four quarters. The call code regression models utilized upon implementation of CECL on January 1, 2022, and as of March 31, 2023, were identical, and relied upon reasonable and supportable forecasts of the National Unemployment Rate. Management selected the National Unemployment Rate as the driver of quantitative portion of collectively reserves on loan classes reliant upon the DCF methodology, primarily as a result of high correlation coefficients identified in regression modeling, the availability of forecasts including the quarterly FOMC forecast, and given the widespread familiarity of stakeholders with this economic metric. The quantitative reserves for Farmland, Agricultural Production and Consumer loans are calculated using a Remaining Life methodology where average historical bank specific and peer loss rates are applied to expected loan balances over an estimated remaining life of loans in calculation of the quantitative portion of collectively evaluated loans in these classes. The estimated remaining life is calculated using historical bank-specific loan attrition data. For the Farmland, Agricultural Production and Consumer classes of loans, reasonable and supportable forecasts of the National Unemployment rate, real GDP and the housing price index are considered through estimation of qualitative reserves. Management recognizes that there are additional factors impacting risk of loss in the loan portfolio beyond what is captured in the quantitative portion of reserves on collectively evaluated loans. As current and expected conditions, may vary compared with conditions over the historical lookback period, which is utilized in the calculation of quantitative reserves, management considers whether additional or reduced reserve levels on collectively evaluated loans may be warranted given the consideration of a variety of qualitative factors. Several of the following qualitative factors (“Q- factors”) considered by management reflect the legacy regulatory guidance on Q-factors, whereas several others represent factors unique to the Company or unique to the current time period. ● Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices ● Changes in international, regional and local economic and business conditions, and developments that affect the collectability of the portfolio, as reflected in forecasts of the Housing Price Index, Real GDP and the National Unemployment Rate (Farmland & Agricultural Production and Consumer segments only) ● Changes in the nature and volume of the loan portfolio ● Changes in the experience, ability, and depth of lending management and other relevant staff ● Changes in the volume and severity of past due, non-accruals loans, and adversely classified loans, as reflected in changes of the relative level of loans classified as substandard and special mention ● Changes in the quality of the Bank’s loan review processes ● Changes in the value of underlying collateral for loans not identified as collateral dependent ● Changes in loan categorization concentrations ● Other external factors, which include, the influence of peer data on estimated quantitative reserves, residual COVID-19 related risk, expected impact of current and expected inflationary environment, reliance on the National Unemployment rate as opposed to the California unemployment rate in the calculation of quantitative reserves, the expected impact of current and expected geo-political conditions The qualitative portion of the Company’s reserves on collectively evaluated loans are calculated using a combination of numeric frameworks and management judgement, to determine risk categorizations in each of the Q-factors presented above. The amount of qualitative reserves is also contingent upon the historical peer, life-of-loan-equivalent, loss rate ranges and the relative weighting of Q-factors according to management’s judgement. Although collectively evaluated reserves are generally calculated separately at the call code or loan class level, management has grouped loan classes with similar risk characteristics into the following portfolio segments: 1-4 Family Real Estate, Commercial Real Estate, Farmland & Agricultural Production, Commercial & Industrial, Mortgage Warehouse and Consumer loans. Loans secured by 1-4 family residences have a different profile from loans secured by Commercial Real Estate. Generally, the borrowers for 1-4 Family loans are consumers whereas borrowers for Commercial Real Estate are often businesses. The COVID-19 pandemic illustrated how these different categories of real estate loans were subject to different risks, which was exacerbated by the widespread work-from-home model adopted by many companies during and since the pandemic. Farmland and Agricultural Production loans are included in a single segment as these loans are often times to the same borrowers, facing the same risks relating to commodity prices, water supply and drought conditions in addition to other environmental concerns. Commercial & Industrial loans are separated into a unique segment given the uniqueness of these loans, which are often revolving and secured by other business assets as opposed to real estate. Mortgage warehouse loans are also unique in the Company’s portfolio and warrant separate presentation as an individual portfolio segment, given the specific nature of these constantly revolving lines to mortgage originators and also attributable to a very limited loss history, even after consideration of peer data. Finally, the Company splits out Consumer loans as a separate segment as a result of the small balance, homogeneous terms that characterize these loans. Management individually evaluates loans that do not share risk characteristics with other loans when estimating reserves. As of March 31, 2023, the only loans that Management considered to have different risk characteristics from other loans sharing the same Federal Call Report code were loans designated nonaccrual. ​ The following tables present the activity in the allowance for credit losses by portfolio segment for the quarters ended March 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for Credit Losses and Recorded Investment in Financing Receivables ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 Family Real Estate ​ Commercial Real Estate Farmland & Agricultural Production Commercial & Industrial ​ Mortgage Warehouse Consumer Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ $ 3,251 ​ $ 17,732 ​ $ 458 ​ $ 1,233 ​ $ 72 ​ $ 314 ​ $ 23,060 Charge-offs ​ ​ — ​ ​ — ​ ​ (1,277) ​ ​ (308) ​ ​ — ​ ​ (395) ​ ​ (1,980) Recoveries ​ ​ 205 ​ ​ — ​ ​ 1,282 ​ ​ 23 ​ ​ — ​ ​ 250 ​ ​ 1,760 Provision for credit losses ​ ​ (213) ​ ​ 67 ​ ​ 38 ​ ​ 258 ​ ​ 10 ​ ​ 90 ​ ​ 250 Ending allowance balance: ​ $ 3,243 ​ $ 17,799 ​ $ 501 ​ $ 1,206 ​ $ 82 ​ $ 259 ​ $ 23,090 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 Family Real Estate ​ Commercial Real Estate Farmland & Agricultural Production Commercial & Industrial ​ Mortgage Warehouse Consumer Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ $ 1,909 ​ $ 9,052 ​ $ 1,202 ​ $ 1,060 ​ $ 512 ​ $ 521 ​ $ 14,256 Impact of adopting ASC 326 ​ ​ 611 ​ ​ 9,628 ​ ​ (480) ​ ​ 358 ​ ​ (421) ​ ​ (242) ​ ​ 9,454 Charge-offs ​ ​ — ​ ​ — ​ ​ (1,958) ​ ​ (74) ​ ​ — ​ ​ (299) ​ ​ (2,331) Recoveries ​ ​ 87 ​ ​ 260 ​ ​ — ​ ​ 20 ​ ​ — ​ ​ 184 ​ ​ 551 Provision for credit losses ​ ​ 722 ​ ​ (1,897) ​ ​ 1,842 ​ ​ (133) ​ ​ (40) ​ ​ 106 ​ ​ 600 Ending allowance balance: ​ $ 3,329 ​ $ 17,043 ​ $ 606 ​ $ 1,231 ​ $ 51 ​ $ 270 ​ $ 22,530 ​ There were no significant changes in the Company’s loan portfolio ACL in the first quarter of 2023.

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2023
Goodwill [Abstract]
Goodwill	Note 11 – Goodwill The following table discloses changes in the carrying value of goodwill for the three months ended March 31, 2023 and 2022 (dollars in thousands, unaudited): ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 ​ 2022 Net carrying value at beginning of period ​ $ 27,357 ​ $ 27,357 ​ Impairment exists when a reporting unit’s carrying value of goodwill exceeds its fair value. Bank of the Sierra (the “Bank”) is the only subsidiary of the Company that meets the materiality criteria necessary to be deemed an operating segment, and because the Company exists primarily for the purpose of holding the stock of the Bank we have determined that only one

Borrowings and Other Arrangemen

Borrowings and Other Arrangements	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Borrowings and Other Arrangements	Note 12 – Borrowings and Other Arrangements The following table summarizes the Company’s other borrowings as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ Average ​ Balance Rate Balance Rate Overnight Fed funds purchased (1) ​ $ 150,000 ​ 4.88% ​ $ 125,000 ​ 4.08% Overnight FHLB advance (2) ​ ​ 26,800 ​ 4.84% ​ ​ 94,000 ​ 3.44% Long-term FHLB advance (2) ​ ​ 40,000 ​ 3.88% ​ ​ — ​ — Total other borrowings ​ $ 216,800 ​ 4.84% ​ $ 219,000 ​ 3.67% ​ The Company has established secured and unsecured lines of credit under which it may borrow funds from time to time on a term or overnight basis from the FHLB, FRB, and other correspondent banks. ​ Federal Funds Purchased (1) ​ Federal Home Loan Bank Borrowings (2) ​ Federal Reserve Line of Credit ​ Repurchase Agreements – ​ Long-Term Debt ​ Subordinated Debentures

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Note 13 – Revenue Recognition The Company utilizes the guidance found in ASU 2014-09, Revenue from Contracts with Customers (ASC 606), when accounting for certain noninterest income. The core principle of this guidance 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. Sufficient information should be provided to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The Company’s revenue streams that are within the scope of and accounted for under Topic 606 include service charges on deposit accounts, debit card interchange fees, and fees levied for other services the Company provides its customers. The guidance does not apply to revenue associated with financial instruments such as loans and investments, and other noninterest income such as loan servicing fees and earnings on bank-owned life insurance, which are accounted for on an accrual basis under other provisions of GAAP. All of the Company’s revenue from contracts within the scope of ASC 606 is recognized when incurred as noninterest income and gains on the sale of OREO which is classified as noninterest expense. These gains were immaterial for both of the three months ended March 31, 2023 and 2022. The following table presents the Company’s sources of noninterest income for the three month periods ended March 31, 2023 and 2022. Items outside the scope of ASC 606 are noted as such (dollars in thousands, unaudited). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the three months ended March 31, ​ For the year ended December 31, ​ 2023 2022 ​ 2022 Noninterest income ​ ​ ​ ​ ​ ​ ​ ​ ​ Service charges on deposits ​ ​ ​ ​ ​ ​ ​ ​ ​ Returned item and overdraft fees $ 1,258 $ 1,328 ​ $ 5,227 Other service charges on deposits ​ ​ 2,093 ​ ​ 2,164 ​ ​ 9,340 Debit card interchange income ​ ​ 2,029 ​ ​ 2,056 ​ ​ 8,533 Gain (loss) on limited partnerships (1) ​ ​ (166) ​ ​ (113) ​ ​ 253 Dividends on equity investments (1) ​ ​ 276 ​ ​ 246 ​ ​ 843 Unrealized (losses) gains recognized on equity investments (1) ​ ​ (291) ​ ​ (332) ​ ​ (332) Net gains on sale of securities (1) ​ ​ 45 ​ ​ 1,032 ​ ​ 1,487 Other (1) ​ ​ 1,335 ​ ​ (318) ​ ​ 5,419 Total noninterest income ​ $ 6,579 ​ $ 6,063 ​ $ 30,770 Percentage of noninterest income not within scope of ASC 606. ​ ​ 18.22% ​ ​ 8.49% ​ ​ 24.93% ​ (1) Not within scope of ASC 606. Revenue streams are not related to contracts with customers and are accounted for under other provisions of GAAP. ​ With regard to noninterest income associated with customer contracts, the Company has determined that transaction prices are fixed, and performance obligations are satisfied as services are rendered, thus there is little or no judgment involved in the timing of revenue recognition under contracts that are within the scope of ASC 606.

Share Based Compensation (Table

Share Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Compensation, Restricted Stock, Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ ​ 2023 ​ 2022 ​ ​ Shares ​ ​ Weighted Average Grant-Date Fair Value ​ Shares ​ ​ Weighted Average Grant-Date Fair Value Unvested shares, January 1, ​ 175,619 ​ $ 21.42 ​ 165,131 ​ $ 21.72 Granted ​ 29,064 ​ ​ 21.50 ​ — ​ ​ — Vested ​ (3,162) ​ ​ 25.30 ​ (3,162) ​ ​ 25.30 Forfeited ​ (514) ​ ​ 27.16 ​ (220) ​ ​ 27.16 Unvested shares, March 31, ​ 201,007 ​ $ 21.35 ​ 161,749 ​ $ 21.65 ​
Schedule of Share-based Compensation, Stock Options, Activity	The Company’s stock option activity during the nine months ended March 31, 2023 and 2022 are summarized below (dollars in thousands, except per share data, unaudited): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ ​ 2023 ​ 2022 ​ Shares Weighted Average Exercise Price ​ Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Shares Weighted Average Exercise Price ​ Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at January 1, ​ 352,249 ​ $ 25.06 ​ ​ ​ $ 348 ​ 415,870 ​ $ 24.15 ​ ​ ​ $ 1,338 Exercised ​ — ​ $ — ​ ​ ​ $ — ​ — ​ $ — ​ ​ ​ $ 91 Forfeited/Expired ​ (2,200) ​ $ 27.67 ​ ​ ​ $ — ​ (3,081) ​ $ 27.30 ​ ​ ​ $ — Outstanding at March 31, ​ 350,049 ​ $ 25.04 ​ 4.99 ​ $ 33 ​ 412,789 ​ $ 24.12 ​ 5.66 ​ $ 1,092 Exercisable at March 31, ​ 325,649 ​ $ 24.89 ​ 4.85 ​ $ 33 ​ 370,789 ​ $ 23.78 ​ 5.43 ​ $ 1,092 (1) The aggregate intrinsic value of stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on March 31, 2023. This amount changes based on changes in the market value of the Company's stock.

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	3 Months Ended
	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Financial Instruments Representing Off-Balance-Sheet Credit Risk	The following financial instruments represent off-balance-sheet credit risk (dollars in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 December 31, 2022 Commitments to extend credit ​ $ 699,176 ​ $ 889,517 Standby letters of credit ​ $ 6,052 ​ $ 6,037 ​

Fair Value Disclosures and Re_2

Fair Value Disclosures and Reporting and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of carrying amount and estimated fair values of financial instruments	Estimated fair values for the Company’s financial instruments are as follows, as of the dates noted: Fair Value of Financial Instruments (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 83,506 ​ $ 83,506 ​ $ — ​ $ — ​ $ 83,506 Investment securities available-for-sale ​ ​ 1,040,920 ​ ​ — ​ ​ 988,921 ​ ​ 51,999 ​ ​ 1,040,920 Investment securities held-to-maturity ​ ​ 332,728 ​ ​ — ​ ​ 325,607 ​ ​ — ​ ​ 325,607 Loans, net held for investment ​ ​ 2,010,807 ​ ​ — ​ ​ — ​ ​ 1,896,715 ​ ​ 1,896,715 Individually evaluated collateral dependent loans ​ ​ 95 ​ ​ — ​ ​ 95 ​ ​ — ​ ​ 95 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,948,988 ​ ​ 1,041,748 ​ ​ 1,906,751 ​ ​ — ​ ​ 2,948,499 Repurchase agreements ​ ​ 94,061 ​ ​ — ​ ​ 94,061 ​ ​ — ​ ​ 94,061 Other borrowings ​ ​ 216,800 ​ ​ — ​ ​ 216,480 ​ ​ — ​ ​ 216,480 Long-term borrowings ​ ​ 49,236 ​ ​ — ​ ​ 41,038 ​ ​ — ​ ​ 41,038 Subordinated debentures ​ ​ 35,526 ​ ​ — ​ ​ 32,757 ​ ​ — ​ ​ 32,757 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Amount Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 77,131 ​ $ 77,131 ​ $ — ​ $ — ​ $ 77,131 Investment securities available for sale ​ ​ 934,923 ​ ​ — ​ ​ 877,488 ​ ​ 57,435 ​ ​ 934,923 Investment securities held-to-maturity ​ ​ 336,881 ​ ​ — ​ ​ 328,011 ​ ​ — ​ ​ 328,011 Loans, net held for investment ​ ​ 2,011,616 ​ ​ — ​ ​ — ​ ​ 1,909,822 ​ ​ 1,909,822 Individually evaluated collateral dependent loans ​ ​ 18,141 ​ ​ — ​ ​ 18,141 ​ ​ — ​ ​ 18,141 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,846,164 ​ ​ 1,088,199 ​ ​ 1,756,443 ​ ​ — ​ ​ 2,844,642 Repurchase agreements ​ ​ 109,169 ​ ​ — ​ ​ 109,169 ​ ​ — ​ ​ 109,169 Other borrowings ​ ​ 219,000 ​ ​ — ​ ​ 219,000 ​ ​ — ​ ​ 219,000 Long-term borrowings ​ ​ 49,214 ​ ​ — ​ ​ 42,775 ​ ​ — ​ ​ 42,775 Subordinated debentures ​ ​ 35,481 ​ ​ — ​ ​ 37,171 ​ ​ — ​ ​ 37,171 ​
Schedule of assets reported at fair value on a recurring basis	Assets reported at fair value on a recurring basis are summarized below: Fair Value Measurements – Recurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at March 31, 2023, using ​ ​ ​ ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Realized Gain/(Loss) (Level 3) Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 105,327 ​ $ — ​ $ 105,327 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 115,652 ​ ​ — ​ ​ 115,652 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 206,963 ​ ​ — ​ ​ 206,963 ​ ​ — Corporate bonds ​ ​ — ​ ​ — ​ ​ 51,999 ​ ​ 51,999 ​ ​ — Collateralized loan obligations ​ ​ — ​ ​ 560,979 ​ ​ — ​ ​ 560,979 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 988,921 ​ $ 51,999 ​ $ 1,040,920 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2022, using ​ ​ ​ ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Realized Gain/(Loss) (Level 3) Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 50,599 ​ $ — ​ $ 50,599 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 122,532 ​ ​ — ​ ​ 122,532 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 205,980 ​ ​ — ​ ​ 205,980 ​ ​ — Corporate bonds ​ ​ — ​ ​ — ​ ​ 57,435 ​ ​ 57,435 ​ ​ — Collateralized loan obligations ​ ​ — ​ ​ 498,377 ​ ​ — ​ ​ 498,377 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 877,488 ​ $ 57,435 ​ $ 934,923 ​ $ — ​
Reconciliation of all assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements - Level 3 Recurring ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateralized Loan Obligations Corporate Bonds ​ ​ 2023 ​ 2022 ​ 2023 ​ 2022 Balance of recurring Level 3 assets at January 1, ​ $ — ​ $ 195,707 ​ $ 57,435 ​ $ 27,530 Total gains or losses for the period: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Included in other comprehensive income ​ ​ — ​ ​ — ​ ​ (5,436) ​ ​ — Purchases ​ ​ — ​ ​ — ​ ​ — ​ ​ 13,354 Transfers out of Level 3 ​ ​ — ​ ​ (195,707) ​ ​ — ​ ​ — Balance of recurring Level 3 assets at March 31, ​ $ — ​ $ — ​ $ 51,999 ​ $ 40,884 ​ ​
Schedule of assets reported at fair value on a nonrecurring basis	Assets reported at fair value on a nonrecurring basis are summarized below: Fair Value Measurements – Nonrecurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at March 31, 2023, using ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Individually evaluated collateral dependent loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ — ​ ​ — ​ ​ — Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 95 ​ ​ — ​ ​ 95 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total collateral dependent loans ​ $ — ​ $ 95 ​ $ — ​ $ 95 Foreclosed assets ​ $ — ​ $ — ​ $ — ​ $ — Total assets measured on a nonrecurring basis ​ $ — ​ $ 95 ​ $ — ​ $ 95 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2022, using ​ Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Individually evaluated collateral dependent loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ 15,391 ​ ​ — ​ ​ 15,391 Total real estate ​ ​ — ​ ​ 15,391 ​ ​ — ​ ​ 15,391 Agricultural ​ ​ — ​ ​ 2,750 ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ 2,750 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total collateral dependent loans ​ $ — ​ $ 18,141 ​ $ — ​ $ 18,141 Foreclosed assets ​ $ — ​ $ — ​ $ — ​ $ — Total assets measured on a nonrecurring basis ​ $ — ​ $ 18,141 ​ $ — ​ $ 18,141 ​

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Amortized Cost And Estimated Fair Value	The amortized cost, estimated fair value, and allowance for credit losses of available-for-sale and held-to-maturity investment securities are as follows: Amortized Cost And Estimated Fair Value (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ Amortized Cost Gross Unrealized Gains Gross Unrealized Losses ​ Allowance for Credit Losses Estimated Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 105,600 ​ $ 66 ​ $ (339) ​ $ — ​ $ 105,327 Mortgage-backed securities ​ ​ 122,977 ​ ​ — ​ ​ (7,325) ​ ​ — ​ ​ 115,652 State and political subdivisions ​ ​ 222,609 ​ ​ 785 ​ ​ (16,431) ​ ​ — ​ ​ 206,963 Corporate bonds ​ ​ 65,190 ​ ​ — ​ ​ (13,191) ​ ​ — ​ ​ 51,999 Collateralized loan obligations ​ ​ 574,041 ​ ​ 62 ​ ​ (13,124) ​ ​ — ​ ​ 560,979 Total available-for-sale securities ​ $ 1,090,417 ​ $ 913 ​ $ (50,410) ​ $ — ​ $ 1,040,920 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Cost Gross Unrecognized Gains Gross Unrecognized Losses ​ Estimated Fair Value Allowance for Credit Losses Held-to-maturity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 5,795 ​ $ — ​ $ (602) ​ $ 5,193 ​ $ — Mortgage-backed securities ​ ​ 153,667 ​ ​ — ​ ​ (10,168) ​ ​ 143,499 ​ ​ — State and political subdivisions ​ ​ 173,329 ​ ​ 3,586 ​ ​ — ​ ​ 176,915 ​ ​ (63) Total held-to-maturity securities ​ $ 332,791 ​ $ 3,586 ​ $ (10,770) ​ $ 325,607 ​ $ (63) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Amortized Cost Gross Unrealized Gains Gross Unrealized Losses ​ Allowance for Credit Losses Estimated Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 50,625 ​ $ 49 ​ $ (75) ​ $ — ​ $ 50,599 Mortgage-backed securities ​ ​ 129,948 ​ ​ — ​ ​ (7,416) ​ ​ — ​ ​ 122,532 State and political subdivisions ​ ​ 223,810 ​ ​ 607 ​ ​ (18,437) ​ ​ — ​ ​ 205,980 Corporate bonds ​ ​ 65,164 ​ ​ 10 ​ ​ (7,739) ​ ​ — ​ ​ 57,435 Collateralized loan obligations ​ ​ 515,032 ​ ​ 60 ​ ​ (16,715) ​ ​ — ​ ​ 498,377 Total available-for-sale securities ​ $ 984,579 ​ $ 726 ​ $ (50,382) ​ $ — ​ $ 934,923 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortized Cost ​ Gross Unrecognized Gains ​ Gross Unrecognized Losses ​ Estimated Fair Value ​ Allowance for Credit Losses Held-to-maturity ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ 6,047 ​ $ — ​ $ (621) ​ $ 5,426 ​ $ — Mortgage-backed securities ​ ​ 157,473 ​ ​ — ​ ​ (9,915) ​ ​ 147,558 ​ ​ — State and political subdivisions ​ ​ 173,424 ​ ​ 1,603 ​ ​ — ​ ​ 175,027 ​ ​ (63) Total held-to-maturity securities ​ $ 336,944 ​ $ 1,603 ​ $ (10,536) ​ $ 328,011 ​ $ (63) ​
Information Pertaining to Investment Securities Aggregated by Investment Category and Length of Time that Individual Securities in a Continuous Loss Position	The following table summarizes available-for-sale debt securities that were in an unrealized loss position for which an ACL has not been recorded, based on the length of time the individual securities have been in an unrealized loss position, including the number of available-for-sale debt securities in an unrealized loss position, as of the dates indicated below. Investment Portfolio - Unrealized Losses (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ ​ Less than twelve months ​ Twelve months or more ​ Total ​ Number of Securities Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies 19 ​ $ (297) ​ $ 68,303 ​ $ (42) ​ $ 958 ​ $ (339) ​ $ 69,261 Mortgage-backed securities 338 ​ ​ (1,310) ​ ​ 29,985 ​ ​ (6,015) ​ ​ 85,644 ​ ​ (7,325) ​ ​ 115,629 State and political subdivisions 236 ​ ​ (2,747) ​ ​ 73,118 ​ ​ (13,684) ​ ​ 77,094 ​ ​ (16,431) ​ ​ 150,212 Corporate bonds 52 ​ ​ (3,074) ​ ​ 21,667 ​ ​ (10,117) ​ ​ 30,332 ​ ​ (13,191) ​ ​ 51,999 Collateralized loan obligations 65 ​ ​ (1,258) ​ ​ 148,195 ​ ​ (11,866) ​ ​ 384,889 ​ ​ (13,124) ​ ​ 533,084 Total available-for-sale 710 ​ $ (8,686) ​ $ 341,268 ​ $ (41,724) ​ $ 578,917 ​ $ (50,410) ​ $ 920,185 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ Less than twelve months ​ Twelve months or more ​ Total ​ Number of Securities Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Available-for-sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies 8 ​ $ (75) ​ $ 27,550 ​ $ — ​ $ — ​ $ (75) ​ $ 27,550 Mortgage-backed securities 340 ​ ​ (7,108) ​ ​ 119,260 ​ ​ (308) ​ ​ 3,227 ​ ​ (7,416) ​ ​ 122,487 State and political subdivisions 252 ​ ​ (15,732) ​ ​ 147,635 ​ ​ (2,705) ​ ​ 9,807 ​ ​ (18,437) ​ ​ 157,442 Corporate bonds 52 ​ ​ (7,644) ​ ​ 54,636 ​ ​ (95) ​ ​ 405 ​ ​ (7,739) ​ ​ 55,041 Collateralized loan obligations 60 ​ ​ (10,152) ​ ​ 309,102 ​ ​ (6,563) ​ ​ 169,743 ​ ​ (16,715) ​ ​ 478,845 Total available-for-sale 712 ​ $ (40,711) ​ $ 658,183 ​ $ (9,671) ​ $ 183,182 ​ $ (50,382) ​ $ 841,365 ​ ​
Realized Gain (Loss) on Investments	The table below summarizes the Company’s gross realized gains and losses as well as gross proceeds from the sales of securities, for the periods indicated: Investment Portfolio - Realized Gains/(Losses) (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended March 31, ​ 2023 2022 Proceeds from sales, calls and maturities of securities available for sale ​ $ 36,213 ​ $ 28,781 Gross gains on sales, calls and maturities of securities available for sale ​ ​ 45 ​ ​ 1,032 Net gains on sale of securities available for sale ​ $ 45 ​ $ 1,032 ​
Investments Classified by Contractual Maturity Date	Estimated Fair Value of Contractual Maturities (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ Available-for-Sale ​ Held-to-Maturity ​ Amortized Cost Fair Value Amortized Cost Fair Value Maturing within one year ​ $ 24,690 ​ $ 24,749 ​ $ 668 ​ $ 666 Maturing after one year through five years ​ ​ 50,222 ​ ​ 49,963 ​ ​ 2,052 ​ ​ 2,018 Maturing after five years through ten years ​ ​ 131,381 ​ ​ 117,486 ​ ​ 18,754 ​ ​ 17,313 Maturing after ten years ​ ​ 187,107 ​ ​ 172,090 ​ ​ 157,650 ​ ​ 162,111 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 122,977 ​ ​ 115,652 ​ ​ 153,667 ​ ​ 143,499 Collateralized loan obligations ​ ​ 574,040 ​ ​ 560,980 ​ ​ — ​ ​ — ​ ​ $ 1,090,417 ​ $ 1,040,920 ​ $ 332,791 ​ $ 325,607 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Available-for-Sale ​ Held-to-Maturity ​ Amortized Cost Fair Value Amortized Cost Fair Value Maturing within one year ​ $ 12,141 ​ $ 12,184 $ 672 ​ $ 666 Maturing after one year through five years ​ ​ 21,013 ​ ​ 20,831 ​ ​ 2,059 ​ ​ 2,032 Maturing after five years through ten years ​ ​ 119,649 ​ ​ 111,513 ​ ​ 19,048 ​ ​ 17,431 Maturing after ten years ​ ​ 186,796 ​ ​ 169,486 ​ ​ 157,692 ​ ​ 160,324 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 129,948 ​ ​ 122,532 ​ ​ 157,473 ​ ​ 147,558 Collateralized loan obligations ​ ​ 515,032 ​ ​ 498,377 ​ ​ — ​ ​ — ​ ​ $ 984,579 ​ $ 934,923 ​ $ 336,944 ​ $ 328,011 ​
Summary of Amortized Cost and Fair Values of General Obligation and Revenue Bonds	The following table summarizes the amortized cost and fair values of general obligation and revenue bonds in the Company’s investment securities portfolio at the indicated dates, identifying the state in which the issuing municipality or agency operates for our largest geographic concentrations: Revenue and General Obligation Bonds by Location (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market General obligation bonds Cost Value Cost Value State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ $ 152,779 ​ $ 147,874 ​ $ 153,209 ​ $ 146,667 California ​ ​ 65,368 ​ ​ 61,651 ​ ​ 65,758 ​ ​ 60,701 Washington ​ ​ 21,597 ​ ​ 21,498 ​ ​ 21,635 ​ ​ 21,312 Other (29 & 26 states, respectively) ​ ​ 101,954 ​ ​ 100,596 ​ ​ 102,336 ​ ​ 100,480 Total general obligation bonds ​ ​ 341,698 ​ ​ 331,619 ​ ​ 342,938 ​ ​ 329,160 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue bonds ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ ​ 9,209 ​ ​ 8,852 ​ ​ 9,216 ​ ​ 8,840 California ​ ​ 3,790 ​ ​ 3,728 ​ ​ 3,788 ​ ​ 3,673 Washington ​ ​ 4,073 ​ ​ 3,523 ​ ​ 4,083 ​ ​ 3,490 Other (20 & 15 states, respectively) ​ ​ 37,168 ​ ​ 36,156 ​ ​ 37,209 ​ ​ 35,844 Total revenue bonds ​ ​ 54,240 ​ ​ 52,259 ​ ​ 54,296 ​ ​ 51,847 Total obligations of states and political subdivisions ​ $ 395,938 ​ $ 383,878 ​ $ 397,234 ​ $ 381,007 ​ ​ The revenue bonds in the Company’s investment securities portfolios were issued by government municipalities and agencies to fund public services such as utilities (water, sewer, and power), educational facilities, and general public and economic improvements. The primary sources of revenue for these bonds are delineated in the table below, which shows the amortized cost and fair market values for the largest revenue concentrations as of the indicated dates. Revenue Bonds by Type (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market Revenue bonds Cost Value Cost Value Revenue source: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Water ​ $ 21,220 ​ $ 20,098 ​ $ 21,246 ​ $ 19,977 Lease ​ ​ 7,027 ​ ​ 7,284 ​ ​ 7,035 ​ ​ 7,250 Sewer ​ ​ 6,554 ​ ​ 6,469 ​ ​ 6,560 ​ ​ 6,405 Sales tax revenue ​ ​ 4,117 ​ ​ 3,969 ​ ​ 4,123 ​ ​ 3,934 Local or GTD housing ​ ​ 3,038 ​ ​ 2,971 ​ ​ 3,040 ​ ​ 2,951 Other (9 and 10 sources, respectively) ​ ​ 12,284 ​ ​ 11,468 ​ ​ 12,292 ​ ​ 11,330 Total revenue bonds ​ $ 54,240 ​ $ 52,259 ​ $ 54,296 ​ $ 51,847 ​

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2023
Receivables [Abstract]
Schedule of Loan Distribution	​ ​ ​ ​ ​ ​ ​ ​ Loan Distribution ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ March 31, 2023 December 31, 2022 Real estate: ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 15,653 ​ $ 18,412 1-4 family - closed-end ​ ​ 414,232 ​ ​ 416,116 Equity lines ​ ​ 18,953 ​ ​ 21,330 Multi-family residential ​ ​ 92,220 ​ ​ 91,691 Commercial real estate - owner occupied ​ ​ 313,863 ​ ​ 323,873 Commercial real estate - non-owner occupied ​ ​ 912,544 ​ ​ 893,846 Farmland ​ ​ 92,906 ​ ​ 113,394 Total real estate ​ ​ 1,860,371 ​ ​ 1,878,662 Agricultural ​ ​ 26,392 ​ ​ 27,936 Commercial and industrial ​ ​ 74,726 ​ ​ 76,779 Mortgage warehouse lines ​ ​ 68,472 ​ ​ 65,439 Consumer loans ​ ​ 4,007 ​ ​ 4,124 Subtotal ​ ​ 2,033,968 ​ ​ 2,052,940 Net deferred loan fees and costs ​ ​ 24 ​ ​ (123) Loans, amortized cost basis ​ ​ 2,033,992 ​ ​ 2,052,817 Allowance for credit losses ​ ​ (23,090) ​ ​ (23,060) Net Loans ​ $ 2,010,902 ​ $ 2,029,757 ​
Schedule of Nonaccrual Loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nonaccrual Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ ​ Nonaccrual Loans ​ ​ ​ ​ With no allowance for credit loss With an allowance for credit loss ​ Total ​ Loans Past Due 90+ Accruing Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 485 ​ ​ — ​ ​ 485 ​ ​ — Equity lines ​ ​ 93 ​ ​ — ​ ​ 93 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 78 ​ ​ — ​ ​ 78 ​ ​ — Total real estate ​ ​ 656 ​ ​ — ​ ​ 656 ​ ​ — Agricultural ​ ​ 71 ​ ​ — ​ ​ 71 ​ ​ — Commercial and industrial ​ ​ 75 ​ ​ 134 ​ ​ 209 ​ ​ 88 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ 1 ​ ​ 1 ​ ​ 2 ​ ​ — Total ​ $ 803 ​ $ 135 ​ $ 938 ​ $ 88 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Nonaccrual Loans ​ ​ ​ ​ With no allowance for credit loss With an allowance for credit loss ​ Total ​ Loans Past Due 90+ Accruing Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 629 ​ ​ — ​ ​ 629 ​ ​ — Equity lines ​ ​ 59 ​ ​ — ​ ​ 59 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 15,812 ​ ​ — ​ ​ 15,812 ​ ​ — Total real estate ​ ​ 16,500 ​ ​ — ​ ​ 16,500 ​ ​ — Agricultural ​ ​ 2,826 ​ ​ 29 ​ ​ 2,855 ​ ​ — Commercial and industrial ​ ​ 83 ​ ​ 134 ​ ​ 217 ​ ​ 940 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ 7 ​ ​ 7 ​ ​ — Total ​ $ 19,409 ​ $ 170 ​ $ 19,579 ​ $ 940 ​
Schedule of collateral dependent loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral Dependent Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ Amortized Cost ​ Individual Reserves ​ Amortized Cost ​ Individual Reserves Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ 485 ​ ​ — ​ ​ 629 ​ ​ — Equity lines ​ ​ 93 ​ ​ — ​ ​ 59 ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 78 ​ ​ — ​ ​ 15,812 ​ ​ — Total real estate ​ ​ 656 ​ ​ — ​ ​ 16,500 ​ ​ — Agricultural ​ ​ 71 ​ ​ — ​ ​ 2,826 ​ ​ — Commercial and industrial ​ ​ 210 ​ ​ 39 ​ ​ 217 ​ ​ 39 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total Loans ​ $ 937 ​ $ 39 ​ $ 19,543 ​ $ 39 ​
Aging of Loan Balances by Number of Days Past Due	The following tables presents the aging of the amortized cost basis in past-due loans, according to class, as of March 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Past Due Loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ 30-59 Days Past Due 60-89 Days Past Due ​ Loans Past Due 90+ Days ​ Total Past Due ​ Loans not Past Due ​ Total Loans Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 15,596 ​ $ 15,596 1-4 family - closed-end ​ ​ 1,158 ​ ​ — ​ ​ 31 ​ ​ 1,189 ​ ​ 413,998 ​ ​ 415,187 Equity lines ​ ​ 1 ​ ​ 88 ​ ​ 35 ​ ​ 124 ​ ​ 19,139 ​ ​ 19,263 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 92,040 ​ ​ 92,040 Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 313,860 ​ ​ 313,860 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 909,884 ​ ​ 909,884 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 93,141 ​ ​ 93,141 Total real estate ​ ​ 1,159 ​ ​ 88 ​ ​ 66 ​ ​ 1,313 ​ ​ 1,857,658 ​ ​ 1,858,971 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 26,672 ​ ​ 26,672 Commercial and industrial ​ ​ 322 ​ ​ — ​ ​ 222 ​ ​ 544 ​ ​ 75,218 ​ ​ 75,762 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Consumer loans ​ ​ 30 ​ ​ — ​ ​ — ​ ​ 30 ​ ​ 4,085 ​ ​ 4,115 Total Loans ​ $ 1,511 ​ $ 88 ​ $ 288 ​ $ 1,887 ​ $ 2,032,105 ​ $ 2,033,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ 30-59 Days Past Due 60-89 Days Past Due ​ Loans Past Due 90+ Days ​ Total Past Due ​ Loans not Past Due ​ Total Loans Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 18,358 ​ $ 18,358 1-4 family - closed-end ​ ​ 1,259 ​ ​ 87 ​ ​ 179 ​ ​ 1,525 ​ ​ 415,568 ​ ​ 417,093 Equity lines ​ ​ 35 ​ ​ — ​ ​ — ​ ​ 35 ​ ​ 21,603 ​ ​ 21,638 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 91,485 ​ ​ 91,485 Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 323,895 ​ ​ 323,895 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 891,195 ​ ​ 891,195 Farmland ​ ​ 522 ​ ​ 97 ​ ​ 15,393 ​ ​ 16,012 ​ ​ 97,582 ​ ​ 113,594 Total real estate ​ ​ 1,816 ​ ​ 184 ​ ​ 15,572 ​ ​ 17,572 ​ ​ 1,859,686 ​ ​ 1,877,258 Agricultural ​ ​ — ​ ​ — ​ ​ 2,778 ​ ​ 2,778 ​ ​ 25,416 ​ ​ 28,194 Commercial and industrial ​ ​ 19 ​ ​ 134 ​ ​ 940 ​ ​ 1,093 ​ ​ 76,601 ​ ​ 77,694 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 65,439 ​ ​ 65,439 Consumer loans ​ ​ 15 ​ ​ — ​ ​ — ​ ​ 15 ​ ​ 4,217 ​ ​ 4,232 Total Loans ​ $ 1,850 ​ $ 318 ​ $ 19,290 ​ $ 21,458 ​ $ 2,031,359 ​ $ 2,052,817 ​
Credit Quality Classifications for Loan Balances	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Term Loans Amortized Cost Basis by Origination Year ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Revolving Loans Amortized Cost ​ Total Loans Other construction/land ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ $ — ​ $ — ​ $ — ​ $ 3,792 ​ $ 712 ​ $ 1,892 ​ $ 9,132 ​ $ 15,528 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 68 ​ ​ — ​ ​ — ​ ​ — ​ ​ 68 Subtotal ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,860 ​ ​ 712 ​ ​ 1,892 ​ ​ 9,132 ​ ​ 15,596 1-4 family - closed-end ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 109,728 ​ ​ 237,151 ​ ​ 7,761 ​ ​ 2,038 ​ ​ 55,919 ​ ​ — ​ ​ 412,597 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,603 ​ ​ — ​ ​ 1,603 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 987 ​ ​ — ​ ​ 987 Subtotal ​ ​ — ​ ​ 109,728 ​ ​ 237,151 ​ ​ 7,761 ​ ​ 2,038 ​ ​ 58,509 ​ ​ — ​ ​ 415,187 Equity lines ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 46 ​ ​ 332 ​ ​ 400 ​ ​ 322 ​ ​ 363 ​ ​ 16,856 ​ ​ 18,319 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 20 ​ ​ — ​ ​ — ​ ​ 454 ​ ​ 474 Substandard ​ ​ — ​ ​ — ​ ​ 114 ​ ​ — ​ ​ — ​ ​ — ​ ​ 356 ​ ​ 470 Subtotal ​ ​ — ​ ​ 46 ​ ​ 446 ​ ​ 420 ​ ​ 322 ​ ​ 363 ​ ​ 17,666 ​ ​ 19,263 Multi-family residential ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 1,892 ​ ​ 23,696 ​ ​ 511 ​ ​ 11,348 ​ ​ 655 ​ ​ 23,368 ​ ​ 27,341 ​ ​ 88,811 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,229 ​ ​ — ​ ​ 3,229 Subtotal ​ ​ 1,892 ​ ​ 23,696 ​ ​ 511 ​ ​ 11,348 ​ ​ 655 ​ ​ 26,597 ​ ​ 27,341 ​ ​ 92,040 Commercial real estate - OO ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 3,275 ​ ​ 38,637 ​ ​ 24,015 ​ ​ 63,603 ​ ​ 36,273 ​ ​ 138,028 ​ ​ 5,839 ​ ​ 309,670 Special mention ​ ​ — ​ ​ 279 ​ ​ — ​ ​ 203 ​ ​ 341 ​ ​ 1,329 ​ ​ — ​ ​ 2,152 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,571 ​ ​ 467 ​ ​ 2,038 Subtotal ​ ​ 3,275 ​ ​ 38,916 ​ ​ 24,015 ​ ​ 63,806 ​ ​ 36,614 ​ ​ 140,928 ​ ​ 6,306 ​ ​ 313,860 Commercial real estate - NOO ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 31,278 ​ ​ 84,417 ​ ​ 19,416 ​ ​ 375,899 ​ ​ 24,797 ​ ​ 207,388 ​ ​ 69,399 ​ ​ 812,594 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,559 ​ ​ — ​ ​ 4,165 ​ ​ — ​ ​ 72,724 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ 14,653 ​ ​ — ​ ​ 9,913 ​ ​ — ​ ​ 24,566 Subtotal ​ ​ 31,278 ​ ​ 84,417 ​ ​ 19,416 ​ ​ 459,111 ​ ​ 24,797 ​ ​ 221,466 ​ ​ 69,399 ​ ​ 909,884 Farmland ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ 27,996 ​ ​ 1,350 ​ ​ 3,993 ​ ​ 1,746 ​ ​ 32,519 ​ ​ 15,428 ​ ​ 83,032 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,023 ​ ​ — ​ ​ 3,023 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 7,086 ​ ​ — ​ ​ 7,086 Subtotal ​ ​ — ​ ​ 27,996 ​ ​ 1,350 ​ ​ 3,993 ​ ​ 1,746 ​ ​ 42,628 ​ ​ 15,428 ​ ​ 93,141 Agricultural ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 3,475 ​ ​ 7,509 ​ ​ 425 ​ ​ 438 ​ ​ 18 ​ ​ 2,667 ​ ​ 11,619 ​ ​ 26,151 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 450 ​ ​ 450 Substandard ​ ​ — ​ ​ — ​ ​ 71 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 71 Subtotal ​ ​ 3,475 ​ ​ 7,509 ​ ​ 496 ​ ​ 438 ​ ​ 18 ​ ​ 2,667 ​ ​ 12,069 ​ ​ 26,672 Commercial and industrial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 2,089 ​ ​ 4,302 ​ ​ 3,893 ​ ​ 7,024 ​ ​ 5,857 ​ ​ 10,590 ​ ​ 33,439 ​ ​ 67,194 Special mention ​ ​ — ​ ​ 184 ​ ​ 119 ​ ​ 3,006 ​ ​ 41 ​ ​ 1,097 ​ ​ 3,772 ​ ​ 8,219 Substandard ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 72 ​ ​ 208 ​ ​ 69 ​ ​ 349 Subtotal ​ ​ 2,089 ​ ​ 4,486 ​ ​ 4,012 ​ ​ 10,030 ​ ​ 5,970 ​ ​ 11,895 ​ ​ 37,280 ​ ​ 75,762 Mortgage warehouse lines ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Subtotal ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 68,472 ​ ​ 68,472 Consumer loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ ​ 885 ​ ​ 397 ​ ​ 181 ​ ​ 133 ​ ​ 101 ​ ​ 303 ​ ​ 2,049 ​ ​ 4,049 Special mention ​ ​ — ​ ​ — ​ ​ — ​ ​ 19 ​ ​ 12 ​ ​ 17 ​ ​ 14 ​ ​ 62 Substandard ​ ​ 2 ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 2 ​ ​ 4 Subtotal ​ ​ 887 ​ ​ 397 ​ ​ 181 ​ ​ 152 ​ ​ 113 ​ ​ 320 ​ ​ 2,065 ​ ​ 4,115 Total ​ $ 42,896 ​ $ 297,191 ​ $ 287,578 ​ $ 560,919 ​ $ 72,985 ​ $ 507,265 ​ $ 265,158 ​ $ 2,033,992 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross charge-offs ​ $ 437 ​ $ 13 ​ $ 250 ​ $ — ​ $ — ​ $ 1,280 ​ ​ ​ ​ ​ ​ ​
Allowance for Credit Losses on Financing Receivables.	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for Credit Losses and Recorded Investment in Financing Receivables ​ ​ ​ (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 Family Real Estate ​ Commercial Real Estate Farmland & Agricultural Production Commercial & Industrial ​ Mortgage Warehouse Consumer Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ $ 3,251 ​ $ 17,732 ​ $ 458 ​ $ 1,233 ​ $ 72 ​ $ 314 ​ $ 23,060 Charge-offs ​ ​ — ​ ​ — ​ ​ (1,277) ​ ​ (308) ​ ​ — ​ ​ (395) ​ ​ (1,980) Recoveries ​ ​ 205 ​ ​ — ​ ​ 1,282 ​ ​ 23 ​ ​ — ​ ​ 250 ​ ​ 1,760 Provision for credit losses ​ ​ (213) ​ ​ 67 ​ ​ 38 ​ ​ 258 ​ ​ 10 ​ ​ 90 ​ ​ 250 Ending allowance balance: ​ $ 3,243 ​ $ 17,799 ​ $ 501 ​ $ 1,206 ​ $ 82 ​ $ 259 ​ $ 23,090 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 Family Real Estate ​ Commercial Real Estate Farmland & Agricultural Production Commercial & Industrial ​ Mortgage Warehouse Consumer Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ $ 1,909 ​ $ 9,052 ​ $ 1,202 ​ $ 1,060 ​ $ 512 ​ $ 521 ​ $ 14,256 Impact of adopting ASC 326 ​ ​ 611 ​ ​ 9,628 ​ ​ (480) ​ ​ 358 ​ ​ (421) ​ ​ (242) ​ ​ 9,454 Charge-offs ​ ​ — ​ ​ — ​ ​ (1,958) ​ ​ (74) ​ ​ — ​ ​ (299) ​ ​ (2,331) Recoveries ​ ​ 87 ​ ​ 260 ​ ​ — ​ ​ 20 ​ ​ — ​ ​ 184 ​ ​ 551 Provision for credit losses ​ ​ 722 ​ ​ (1,897) ​ ​ 1,842 ​ ​ (133) ​ ​ (40) ​ ​ 106 ​ ​ 600 Ending allowance balance: ​ $ 3,329 ​ $ 17,043 ​ $ 606 ​ $ 1,231 ​ $ 51 ​ $ 270 ​ $ 22,530 ​

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2023
Goodwill [Abstract]
Schedule of rollforward of goodwill	​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended March 31, ​ ​ 2023 ​ 2022 Net carrying value at beginning of period ​ $ 27,357 ​ $ 27,357

Borrowings and Other Arrangem_2

Borrowings and Other Arrangements (Tables)	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Schedule Of Other Borrowings	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ Average ​ Balance Rate Balance Rate Overnight Fed funds purchased (1) ​ $ 150,000 ​ 4.88% ​ $ 125,000 ​ 4.08% Overnight FHLB advance (2) ​ ​ 26,800 ​ 4.84% ​ ​ 94,000 ​ 3.44% Long-term FHLB advance (2) ​ ​ 40,000 ​ 3.88% ​ ​ — ​ — Total other borrowings ​ $ 216,800 ​ 4.84% ​ $ 219,000 ​ 3.67% ​

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Sources of Non-interest Income	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the three months ended March 31, ​ For the year ended December 31, ​ 2023 2022 ​ 2022 Noninterest income ​ ​ ​ ​ ​ ​ ​ ​ ​ Service charges on deposits ​ ​ ​ ​ ​ ​ ​ ​ ​ Returned item and overdraft fees $ 1,258 $ 1,328 ​ $ 5,227 Other service charges on deposits ​ ​ 2,093 ​ ​ 2,164 ​ ​ 9,340 Debit card interchange income ​ ​ 2,029 ​ ​ 2,056 ​ ​ 8,533 Gain (loss) on limited partnerships (1) ​ ​ (166) ​ ​ (113) ​ ​ 253 Dividends on equity investments (1) ​ ​ 276 ​ ​ 246 ​ ​ 843 Unrealized (losses) gains recognized on equity investments (1) ​ ​ (291) ​ ​ (332) ​ ​ (332) Net gains on sale of securities (1) ​ ​ 45 ​ ​ 1,032 ​ ​ 1,487 Other (1) ​ ​ 1,335 ​ ​ (318) ​ ​ 5,419 Total noninterest income ​ $ 6,579 ​ $ 6,063 ​ $ 30,770 Percentage of noninterest income not within scope of ASC 606. ​ ​ 18.22% ​ ​ 8.49% ​ ​ 24.93% ​ (1) Not within scope of ASC 606. Revenue streams are not related to contracts with customers and are accounted for under other provisions of GAAP.

The Business of Sierra Bancorp

The Business of Sierra Bancorp (Details) - store	3 Months Ended
	Mar. 31, 2023	Jan. 31, 1978
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of branches		1
Number of acquired banks	4
Number of full service branch offices	35

The Business of Sierra Bancor_2

The Business of Sierra Bancorp - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Jan. 31, 1978
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Capital			$ 1,500
Assets	$ 3,693,984	$ 3,608,590
Cash, FDIC Insured Amount	$ 2,900,000

Current Accounting Developmen_2

Current Accounting Developments - New Accounting Pronouncements (Details) - Accounting Standards Update 2016-13 [Member]	Mar. 31, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2022

Current Accounting Developmen_3

Current Accounting Developments - Transition Impact on Allowance for Credit Losses - General Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2022	Mar. 31, 2023	Dec. 31, 2022	Oct. 01, 2022	Apr. 01, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction in loan		$ 0
Retained earnings		246,723	$ 243,082
Investment securities available for sale		1,040,920	$ 934,923
Reassessed classification of investments				$ 198,300	$ 162,100
Provision for credit losses on held-to-maturity securities		60
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Writeoff		$ 60
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reduction in loan	$ 9,500
Off balance sheet credit loss	900
Retained earnings	7,300
Investment securities available for sale	$ 0

Share Based Compensation - Gene

Share Based Compensation - General Information (Details) - shares	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	350,049	352,249	412,789	415,870
2007 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	134,449
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	402,726
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	850,000
Number of shares remained available for grant	356,420

Share Based Compensation - Shar

Share Based Compensation - Share-based Compensation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Pre-tax charge	$ 0.4	$ 0.4

Share Based Compensation - Rest

Share Based Compensation - Restricted Stock - General Information (Details)	3 Months Ended
	Mar. 31, 2023 shares
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Share Based Compensation Arrangement by Share Based Payment Award Options Exercise Price to Fair Market Value	100%
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	29,064

Share Based Compensation - Re_2

Share Based Compensation - Restricted Stock - Unamortized Compensation Cost (Details) - Restricted Stock [Member] $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized [Abstract]
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 3.1
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	2 years 3 months 18 days

Share Based Compensation - Re_3

Share Based Compensation - Restricted Stock - Activity (Details) - Restricted Stock [Member] - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested shares (in shares)	175,619	165,131
Granted (in shares)	29,064
Vested (in shares)	(3,162)	(3,162)
Forfeited (in shares)	(514)	(220)
Unvested shares (in shares)	201,007	161,749
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested shares (in dollars per share)	$ 21.42	$ 21.72
Granted (in dollars per share)	21.50
Vested (in dollars per share)	25.30	25.30
Forfeited (in dollars per share)	27.16	27.16
Unvested shares (in dollars per share)	$ 21.35	$ 21.65

Share Based Compensation- Stock

Share Based Compensation- Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding (in shares)	352,249	415,870
Forfeited/Expired (in shares)	(2,200)	(3,081)
Outstanding (in shares)	350,049	412,789
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding (in dollars per share)	$ 25.06	$ 24.15
Forfeited/Expired (in dollars per share)	27.67	27.30
Outstanding (in dollars per share)	$ 25.04	$ 24.12
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term	4 years 11 months 26 days	5 years 7 months 28 days
Aggregate intrinsic value	$ 33	$ 1,092	$ 348	$ 1,338
Aggregate intrinsic value, exercised		$ 91
Exercisable, shares (in shares)	325,649	370,789
Exercisable, weighted average exercise price (in dollars per share)	$ 24.89	$ 23.78
Exercisable, weighted average remaining contractual term	4 years 10 months 6 days	5 years 5 months 4 days
Exercisable, aggregate intrinsic value	$ 33	$ 1,092

Earnings per Share (Details)

Earnings per Share (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average shares outstanding	14,971,842	15,021,138
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Weighted Average Number Diluted Shares Outstanding Adjustment	30,524	99,852
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	327,141	301,714

Commitments and Contingent Li_3

Commitments and Contingent Liabilities- Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 699,176	$ 889,517
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 6,052	$ 6,037

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Letters of Credit Outstanding, Amount	$ 127.9
Unused commitments on mortgage warehouse lines	$ 401.5	$ 594.6

Fair Value Disclosures and Re_3

Fair Value Disclosures and Reporting and Fair Value Measurements - Carrying Amount and Estimated Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financial Assets:
Investment securities available for sale	$ 1,040,920	$ 934,923
Investment securities held-to-maturity	325,607	328,011
Financial liabilities:
Repurchase agreements	94,061	109,169
Carrying Amount [Member]
Financial Assets:
Cash and cash equivalents	83,506	77,131
Investment securities available for sale	1,040,920	934,923
Investment securities held-to-maturity	332,728	336,881
Loans, net held for investment	2,010,807	2,011,616
Individually evaluated collateral dependent loans	95	18,141
Financial liabilities:
Deposits	2,948,988	2,846,164
Repurchase agreements	94,061	109,169
Other borrowings	216,800	219,000
Long-term borrowings	49,236	49,214
Subordinated debentures	35,526	35,481
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	83,506	77,131
Investment securities available for sale	1,040,920	934,923
Investment securities held-to-maturity	325,607	328,011
Loans, net held for investment	1,896,715	1,909,822
Individually evaluated collateral dependent loans	95	18,141
Financial liabilities:
Deposits	2,948,499	2,844,642
Repurchase agreements	94,061	109,169
Other borrowings	216,480	219,000
Long-term borrowings	41,038	42,775
Subordinated debentures	32,757	37,171
Fair Value [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and cash equivalents	83,506	77,131
Investment securities available for sale	0	0
Investment securities held-to-maturity	0	0
Loans, net held for investment	0	0
Individually evaluated collateral dependent loans	0	0
Financial liabilities:
Deposits	1,041,748	1,088,199
Repurchase agreements	0	0
Other borrowings	0	0
Long-term borrowings	0	0
Subordinated debentures	0	0
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	988,921	877,488
Investment securities held-to-maturity	325,607	328,011
Loans, net held for investment	0	0
Individually evaluated collateral dependent loans	95	18,141
Financial liabilities:
Deposits	1,906,751	1,756,443
Repurchase agreements	94,061	109,169
Other borrowings	216,480	219,000
Long-term borrowings	41,038	42,775
Subordinated debentures	32,757	37,171
Fair Value [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	51,999	57,435
Investment securities held-to-maturity	0	0
Loans, net held for investment	1,896,715	1,909,822
Individually evaluated collateral dependent loans	0	0
Financial liabilities:
Deposits	0	0
Repurchase agreements	0	0
Other borrowings	0	0
Long-term borrowings	0	0
Subordinated debentures	$ 0	$ 0

Fair Value Disclosures and Re_4

Fair Value Disclosures and Reporting and Fair Value Measurements- Assets Measured on Recurring Basis, Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	$ 1,040,920	$ 934,923
U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	105,327	50,599
Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	115,652	122,532
States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	206,963	205,980
Corporate Bond [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	51,999	57,435
Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	560,979	498,377
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	1,040,920	934,923
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	105,327	50,599
Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	115,652	122,532
Fair Value, Measurements, Recurring [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	206,963	205,980
Fair Value, Measurements, Recurring [Member] | Corporate Bond [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	51,999	57,435
Fair Value, Measurements, Recurring [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	560,979	498,377
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	988,921	877,488
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	105,327	50,599
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	115,652	122,532
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	206,963	205,980
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	560,979	498,377
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	51,999	57,435
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Bond [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Excluding Accrued Interest	$ 51,999	$ 57,435

Fair Value Disclosures and Re_5

Fair Value Disclosures and Reporting and Fair Value Measurements - Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of recurring Level 3 assets		$ 195,707
Transfers out of Level 3		(195,707)
Ending balance of recurring Level 3 assets	$ 195,700
Corporate Bond [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of recurring Level 3 assets	57,435	27,530
Included in other comprehensive income	(5,436)
Purchases		13,354
Ending balance of recurring Level 3 assets	$ 51,999	$ 40,884

Fair Value Disclosures and Re_6

Fair Value Disclosures and Reporting and Fair Value Measurements - Assets Measured on Nonrecurring Basis, Fair Value (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	$ 95	$ 18,141
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	95	18,141
Consumer Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	15,391
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family Residential Construction [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Other construction/land [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family - Closed-End [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Equity Lines [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Non Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Farmland [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	15,391
Agricultural Sector [Member] | Agricultural Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	95	2,750
Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	0	0
Fair Value, Inputs, Level 1 [Member] | Consumer Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family Residential Construction [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Other construction/land [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family - Closed-End [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Equity Lines [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Non Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Farmland [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Agricultural Sector [Member] | Agricultural Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	95	18,141
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	95	18,141
Fair Value, Inputs, Level 2 [Member] | Consumer Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	15,391
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family Residential Construction [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Other construction/land [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family - Closed-End [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Equity Lines [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Non Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 2 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Farmland [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	15,391
Fair Value, Inputs, Level 2 [Member] | Agricultural Sector [Member] | Agricultural Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	2,750
Fair Value, Inputs, Level 2 [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	95	0
Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	0	0
Fair Value, Inputs, Level 3 [Member] | Consumer Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family Residential Construction [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Other construction/land [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | 1-4 Family - Closed-End [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Equity Lines [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Multi-Family Residential [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Commercial Real Estate Non Owner Occupied [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Real Estate Sector [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Farmland [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Agricultural Sector [Member] | Agricultural Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	0	0
Fair Value, Inputs, Level 3 [Member] | Commercial and Industrial Sector [Member] | Commercial Portfolio Segment [Member]
Assets, Fair Value Disclosure [Abstract]
Individually evaluated collateral dependent loans	$ 0	$ 0

Investments - Amortized Cost an

Investments - Amortized Cost and Estimated Fair Value - Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 1,090,417	$ 984,579
Gross Unrealized Gains	913	726
Gross Unrealized Losses	(50,410)	(50,382)
Allowance for Credit Losses	0	0
Investment securities available for sale	1,040,920	934,923
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	105,600	50,625
Gross Unrealized Gains	66	49
Gross Unrealized Losses	(339)	(75)
Investment securities available for sale	105,327	50,599
Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	122,977	129,948
Gross Unrealized Losses	(7,325)	(7,416)
Investment securities available for sale	115,652	122,532
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	222,609	223,810
Gross Unrealized Gains	785	607
Gross Unrealized Losses	(16,431)	(18,437)
Investment securities available for sale	206,963	205,980
Corporate Bond [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	65,190	65,164
Gross Unrealized Gains		10
Gross Unrealized Losses	(13,191)	(7,739)
Investment securities available for sale	51,999	57,435
Collateralized Loan Obligations [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	574,041	515,032
Gross Unrealized Gains	62	60
Gross Unrealized Losses	(13,124)	(16,715)
Investment securities available for sale	$ 560,979	$ 498,377

Investments - Amortized Cost _2

Investments - Amortized Cost and Estimated Fair Value - Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Amortized Cost	$ 332,791	$ 336,944
Gross Unrecognized Gains	3,586	1,603
Gross Unrecognized Losses	(10,770)	(10,536)
Investment securities held-to-maturity	325,607	328,011
Allowance for credit losses on held-to-maturity securities	(63)	(63)
U.S. Government Agencies [Member]
Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Amortized Cost	5,795	6,047
Gross Unrecognized Losses	(602)	(621)
Investment securities held-to-maturity	5,193	5,426
Mortgage-Backed Securities [Member]
Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Amortized Cost	153,667	157,473
Gross Unrecognized Losses	(10,168)	(9,915)
Investment securities held-to-maturity	143,499	147,558
States and Political Subdivisions [Member]
Debt Securities, Held-to-Maturity, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Amortized Cost	173,329	173,424
Gross Unrecognized Gains	3,586	1,603
Investment securities held-to-maturity	176,915	175,027
Allowance for credit losses on held-to-maturity securities	$ (63)	$ (63)

Investments - Gross Unrealized

Investments - Gross Unrealized Losses - General Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Oct. 01, 2022	Apr. 01, 2022
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Reassessed classification of investments		$ 198,300	$ 162,100
Unrealized loss	$ 30,100
Allowance for credit losses	$ 60

Investments - Gross Unrealize_2

Investments - Gross Unrealized Losses - Tabular Disclosure (Details) $ in Thousands	Mar. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	710	712
Gross Unrealized Losses, Less than twelve months	$ (8,686)	$ (40,711)
Fair Value, Less than twelve months	341,268	658,183
Gross Unrealized Losses, Twelve months or more	(41,724)	(9,671)
Fair Value, Twelve months or more	578,917	183,182
Total, Gross Unrealized Losses	(50,410)	(50,382)
Total, Fair Value	$ 920,185	$ 841,365
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	19	8
Gross Unrealized Losses, Less than twelve months	$ (297)	$ (75)
Fair Value, Less than twelve months	68,303	27,550
Gross Unrealized Losses, Twelve months or more	(42)
Fair Value, Twelve months or more	958
Total, Gross Unrealized Losses	(339)	(75)
Total, Fair Value	$ 69,261	$ 27,550
Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	338	340
Gross Unrealized Losses, Less than twelve months	$ (1,310)	$ (7,108)
Fair Value, Less than twelve months	29,985	119,260
Gross Unrealized Losses, Twelve months or more	(6,015)	(308)
Fair Value, Twelve months or more	85,644	3,227
Total, Gross Unrealized Losses	(7,325)	(7,416)
Total, Fair Value	$ 115,629	$ 122,487
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	236	252
Gross Unrealized Losses, Less than twelve months	$ (2,747)	$ (15,732)
Fair Value, Less than twelve months	73,118	147,635
Gross Unrealized Losses, Twelve months or more	(13,684)	(2,705)
Fair Value, Twelve months or more	77,094	9,807
Total, Gross Unrealized Losses	(16,431)	(18,437)
Total, Fair Value	$ 150,212	$ 157,442
Corporate Bond [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	52	52
Gross Unrealized Losses, Less than twelve months	$ (3,074)	$ (7,644)
Fair Value, Less than twelve months	21,667	54,636
Gross Unrealized Losses, Twelve months or more	(10,117)	(95)
Fair Value, Twelve months or more	30,332	405
Total, Gross Unrealized Losses	(13,191)	(7,739)
Total, Fair Value	$ 51,999	$ 55,041
Collateralized Loan Obligations [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total | security	65	60
Gross Unrealized Losses, Less than twelve months	$ (1,258)	$ (10,152)
Fair Value, Less than twelve months	148,195	309,102
Gross Unrealized Losses, Twelve months or more	(11,866)	(6,563)
Fair Value, Twelve months or more	384,889	169,743
Total, Gross Unrealized Losses	(13,124)	(16,715)
Total, Fair Value	$ 533,084	$ 478,845

Investments - Realized Gains (L

Investments - Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale [Abstract]
Proceeds from sales, calls and maturities of securities available for sale	$ 36,213	$ 28,781
Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract]
Gross gains on sales, calls and maturities of securities available for sale	45	1,032
Net gains on sale of securities available for sale	$ 45	$ 1,032	$ 1,487

Investments - Estimated Fair Va

Investments - Estimated Fair Value of Contractual Maturities - Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Maturing within one year, Amortized Cost	$ 24,690
Maturing within one year, Amortized Cost	0	$ 12,141
Maturing after one year through five years, Amortized Cost	50,222	21,013
Maturing after five years through ten years, Amortized Cost	131,381	119,649
Maturing after ten years, Amortized Cost	187,107	186,796
Amortized Cost	1,090,417	984,579
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Maturing within one year, Fair Value	24,749
Maturing within one year, Fair Value	0	12,184
Maturing after one year through five years, Fair Value	49,963	20,831
Maturing after five years through ten years, Fair Value	117,486	111,513
Maturing after ten years, Fair Value	172,090	169,486
Fair Value	1,040,920	934,923
Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Securities not due at a single maturity date, Amortized Cost	122,977	129,948
Amortized Cost	122,977	129,948
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Securities not due at a single maturity date, Fair Value	115,652	122,532
Fair Value	115,652	122,532
Collateralized Loan Obligations [Member]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Securities not due at a single maturity date, Amortized Cost	574,040	515,032
Amortized Cost	574,041	515,032
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Securities not due at a single maturity date, Fair Value	560,980	498,377
Fair Value	$ 560,979	$ 498,377

Investments- Estimated Fair Val

Investments- Estimated Fair Value of Contractual Maturities - Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract]
Maturing within one year (remainder of year), Amortized Cost	$ 668
Maturing within one year	0	$ 672
Maturing after one year through five years	2,052	2,059
Maturing after five years through ten years	18,754	19,048
Maturing after ten years	157,650	157,692
Amortized Cost	332,791	336,944
Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Maturing within one year, Fair Value	666
Maturing within one year, Fair Value	0	666
Maturing after one year through five years, Fair Value	2,018	2,032
Maturing after five years through ten years, Fair Value	17,313	17,431
Maturing after ten years, Fair Value	162,111	160,324
Estimated Fair Value	325,607	328,011
Mortgage-Backed Securities [Member]
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract]
Securities not due at a single maturity date, Amortized Cost	153,667	157,473
Amortized Cost	153,667	157,473
Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Securities not due at a single maturity date, Fair Value	143,499	147,558
Estimated Fair Value	$ 143,499	$ 147,558

Investments - Revenue and Gener

Investments - Revenue and General Obligation Bonds (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($) item state	Dec. 31, 2022 USD ($) item state
Debt Securities, Available-for-sale [Line Items]
Investment securities available for sale	$ 1,040,920	$ 934,923
Number of municipal bond | item	499	501
City of New York [Member]
Debt Securities, Available-for-sale [Line Items]
Investment securities available for sale		$ 5,100
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Investment securities available for sale	$ 206,963	205,980
Fair market value (available-for-sale securities and held-to-maturity securities)	$ 383,878	$ 381,007
Investment Portfolio, Securities Issued, Municipalities and Agencies, Number | item	409	406
Investment Portfolio, Securities Issued, States, Number | state	37	37
General Obligation Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Fair market value (available-for-sale securities and held-to-maturity securities)	$ 331,619	$ 329,160
General Obligation Bonds [Member] | City of New York [Member]
Debt Securities, Available-for-sale [Line Items]
Investment securities available for sale	5,200
Subordinate Debenture [Member]
Debt Securities, Available-for-sale [Line Items]
Investment securities available for sale	$ 52,000	$ 57,400
Number of subordinated debentures owned | item	51	51

Investments - Revenue and Gen_2

Investments - Revenue and General Obligation Bonds by Location (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
States and Political Subdivisions [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	$ 395,938	$ 397,234
Fair market value (available-for-sale securities and held-to-maturity securities)	383,878	381,007
General Obligation Bonds [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	341,698	342,938
Fair market value (available-for-sale securities and held-to-maturity securities)	331,619	329,160
General Obligation Bonds [Member] | TEXAS
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	152,779	153,209
Fair market value (available-for-sale securities and held-to-maturity securities)	147,874	146,667
General Obligation Bonds [Member] | CALIFORNIA
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	65,368	65,758
Fair market value (available-for-sale securities and held-to-maturity securities)	61,651	60,701
General Obligation Bonds [Member] | WASHINGTON
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	21,597	21,635
Fair market value (available-for-sale securities and held-to-maturity securities)	21,498	21,312
General Obligation Bonds [Member] | Other [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	101,954	102,336
Fair market value (available-for-sale securities and held-to-maturity securities)	100,596	100,480
Revenue Bonds [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	54,240	54,296
Fair market value (available-for-sale securities and held-to-maturity securities)	52,259	51,847
Revenue Bonds [Member] | TEXAS
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	9,209	9,216
Fair market value (available-for-sale securities and held-to-maturity securities)	8,852	8,840
Revenue Bonds [Member] | CALIFORNIA
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	3,790	3,788
Fair market value (available-for-sale securities and held-to-maturity securities)	3,728	3,673
Revenue Bonds [Member] | WASHINGTON
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	4,073	4,083
Fair market value (available-for-sale securities and held-to-maturity securities)	3,523	3,490
Revenue Bonds [Member] | Other [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	37,168	37,209
Fair market value (available-for-sale securities and held-to-maturity securities)	$ 36,156	$ 35,844

Investments - Revenue Bonds by

Investments - Revenue Bonds by Type (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
States and Political Subdivisions [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	$ 395,938	$ 397,234
Fair market value (available-for-sale securities and held-to-maturity securities)	383,878	381,007
Revenue Bonds [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	54,240	54,296
Fair market value (available-for-sale securities and held-to-maturity securities)	52,259	51,847
Revenue Bonds [Member] | Water [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	21,220	21,246
Fair market value (available-for-sale securities and held-to-maturity securities)	20,098	19,977
Revenue Bonds [Member] | Lease [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	7,027	7,035
Fair market value (available-for-sale securities and held-to-maturity securities)	7,284	7,250
Revenue Bonds [Member] | Sewer [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	6,554	6,560
Fair market value (available-for-sale securities and held-to-maturity securities)	6,469	6,405
Revenue Bonds [Member] | Sales Tax [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	4,117	4,123
Fair market value (available-for-sale securities and held-to-maturity securities)	3,969	3,934
Revenue Bonds [Member] | Local Or Guaranteed Housing [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	3,038	3,040
Fair market value (available-for-sale securities and held-to-maturity securities)	2,971	2,951
Revenue Bonds [Member] | Other Revenue Source [Member]
Marketable Securities [Line Items]
Amortized cost (available-for-sale securities and held-to-maturity securities)	12,284	12,292
Fair market value (available-for-sale securities and held-to-maturity securities)	$ 11,468	$ 11,330

Investments - Low-Income Housin

Investments - Low-Income Housing Tax Credit Fund Investments (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Investments in Affordable Housing Projects [Abstract]
Investment, book balance	$ 9.9	$ 10.1
Investment, remaining commitments for additional capital contributions	7.4	7.4
Investment, tax credit	0.1	0.5
Investment, amortization expense	$ 0.2	$ 0.5

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - General Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Accrued interest receivable, loans	$ 5,200	$ 6,400
Additional interest income	40
Amortized cost of collateral-dependent loans, increase (decrease) during the period	$ (18,600)
Weighted average loan-to-value ratio of collateral dependent loans (as a percent)	17%
Collateral dependent loans in process of foreclosure	$ 0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Past Due [Line Items]
Loan and lease receivable		$ 173,100

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Loan and Lease Distribution (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Loans, net
Subtotal	$ 2,033,968	$ 2,052,940
Deferred loan costs (fees), net	24	(123)
Loans, amortized cost basis	2,033,992	2,052,817
Allowance for credit losses on loans	(23,090)	(23,060)	$ (22,530)	$ (14,256)
Net loans	2,010,902	2,029,757
Mortgage Warehouse Lines [Member]
Loans, net
Loans, amortized cost basis	68,472	65,439
Agricultural Sector [Member]
Loans, net
Loans, amortized cost basis	26,672
Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Loans, net
Loans, amortized cost basis	68,472
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Loans, net
Subtotal	1,860,371	1,878,662
Loans, amortized cost basis	1,858,971	1,877,258
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Loans, net
Allowance for credit losses on loans	(3,243)	(3,251)	(3,329)	(1,909)
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Loans, net
Subtotal	15,653	18,412
Loans, amortized cost basis	15,596	18,358
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Loans, net
Subtotal	414,232	416,116
Loans, amortized cost basis	415,187	417,093
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Loans, net
Subtotal	18,953	21,330
Loans, amortized cost basis	19,263	21,638
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Loans, net
Subtotal	92,220	91,691
Loans, amortized cost basis	92,040	91,485
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Loans, net
Subtotal	313,863	323,873
Loans, amortized cost basis	313,860	323,895
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Loans, net
Subtotal	912,544	893,846
Loans, amortized cost basis	909,884	891,195
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Loans, net
Subtotal	92,906	113,394
Loans, amortized cost basis	93,141	113,594
Allowance for credit losses on loans	(501)	(458)	(606)	(1,202)
Commercial Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Loans, net
Allowance for credit losses on loans	(17,799)	(17,732)	(17,043)	(9,052)
Agricultural Portfolio Segment [Member]
Loans, net
Loans, amortized cost basis		28,194
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Loans, net
Subtotal	26,392	27,936
Loans, amortized cost basis	26,672
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Loans, net
Loans, amortized cost basis	75,762	77,694
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Loans, net
Subtotal	74,726	76,779
Loans, amortized cost basis	75,762
Allowance for credit losses on loans	(1,206)	(1,233)	(1,231)	(1,060)
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Loans, net
Subtotal	68,472	65,439
Allowance for credit losses on loans	(82)	(72)	(51)	(512)
Consumer Portfolio Segment [Member]
Loans, net
Subtotal	4,007	4,124
Loans, amortized cost basis	4,115	4,232
Allowance for credit losses on loans	$ (259)	$ (314)	$ (270)	$ (521)

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Nonaccrual Loans and Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	$ 803	$ 19,409
Nonaccrual loans, with an allowance for credit loss	135	170
Nonaccrual loans, total	938	19,579
Loans past due 90+ accruing	88	940
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	656	16,500
Nonaccrual loans, total	656	16,500
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	485	629
Nonaccrual loans, total	485	629
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	93	59
Nonaccrual loans, total	93	59
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	78	15,812
Nonaccrual loans, total	78	15,812
Agricultural Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	71
Nonaccrual loans, total	71
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss		2,826
Nonaccrual loans, with an allowance for credit loss		29
Nonaccrual loans, total		2,855
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	75	83
Nonaccrual loans, with an allowance for credit loss	134	134
Nonaccrual loans, total	209	217
Loans past due 90+ accruing	88	940
Consumer Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Nonaccrual [Abstract]
Nonaccrual loans, with no allowance for credit loss	1
Nonaccrual loans, with an allowance for credit loss	1	7
Nonaccrual loans, total	$ 2	$ 7

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]
Amortized cost	$ 937	$ 19,543
Individual reserves	39	39
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	656	16,500
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	485	629
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	93	59
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	78	15,812
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	71	2,826
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable Recorded Investment [Line Items]
Amortized cost	210	217
Individual reserves	$ 39	$ 39

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Past Due and Nonaccrual Loans - Tabular Disclosure (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans and leases	$ 2,033,992	$ 2,052,817
Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,887	21,458
30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,511	1,850
60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	88	318
90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	288	19,290
Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	2,032,105	2,031,359
Mortgage Warehouse Lines [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	68,472	65,439
Mortgage Warehouse Lines [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	68,472	65,439
Agricultural Sector [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	26,672
Agricultural Sector [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	26,672
Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	68,472
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,858,971	1,877,258
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,313	17,572
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,159	1,816
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	88	184
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	66	15,572
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,857,658	1,859,686
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	15,596	18,358
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	15,596	18,358
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	415,187	417,093
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,189	1,525
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1,158	1,259
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		87
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	31	179
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	413,998	415,568
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	19,263	21,638
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	124	35
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	1	35
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	88
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	35
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	19,139	21,603
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	92,040	91,485
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	92,040	91,485
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	313,860	323,895
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	313,860	323,895
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	909,884	891,195
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	909,884	891,195
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	93,141	113,594
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		16,012
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		522
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		97
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		15,393
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	93,141	97,582
Agricultural Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		28,194
Agricultural Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		2,778
Agricultural Portfolio Segment [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		2,778
Agricultural Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		25,416
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	26,672
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	75,762	77,694
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	544	1,093
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	322	19
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases		134
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | 90 Days Or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	222	940
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	75,218	76,601
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	75,762
Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	4,115	4,232
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	30	15
Consumer Portfolio Segment [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	30	15
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans and leases	$ 4,085	$ 4,217

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Past Due and Nonaccrual Loans - Additional Information (Details) $ in Thousands		3 Months Ended
	Jan. 01, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Financing Receivable, Past Due [Line Items]
Charge-offs		$ 1,980	$ 2,331
Reduction in loan		0
Modifications of existing TDRs			0
Purchased credit deteriorated loans		0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Past Due [Line Items]
Charge-offs		$ 1,277	$ 1,958
Restatement Adjustment [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period			$ 0
Accounting Standards Update 2016-13 [Member] | Restatement Adjustment [Member]
Financing Receivable, Past Due [Line Items]
Reduction in loan	$ 9,500

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Troubled Debt Restructurings - General Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Receivables [Abstract]
Modifications of existing TDRs	0

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses - Credit Quality Classifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	$ 42,896
2022	297,191
2021	287,578
2020	560,919
2019	72,985
Prior	507,265
Revolving loans, amortized cost	265,158
Loans, amortized cost basis	2,033,992	$ 2,052,817
Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Write off By Origination Year Abstract
Gross charge-off , 2023	437
Gross charge-off , 2022	13
Gross charge-off , 2021	250
Gross charge-off , Prior	1,280
Mortgage Warehouse Lines [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Loans, amortized cost basis	68,472	65,439
Agricultural Sector [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Loans, amortized cost basis	26,672
Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Revolving loans, amortized cost	68,472
Loans, amortized cost basis	68,472
Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Revolving loans, amortized cost	68,472
Loans, amortized cost basis	68,472
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Loans, amortized cost basis	1,858,971	1,877,258
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	3,860
2019	712
Prior	1,892
Revolving loans, amortized cost	9,132
Loans, amortized cost basis	15,596	18,358
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	3,792
2019	712
Prior	1,892
Revolving loans, amortized cost	9,132
Loans, amortized cost basis	15,528
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	68
Loans, amortized cost basis	68
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	109,728
2021	237,151
2020	7,761
2019	2,038
Prior	58,509
Loans, amortized cost basis	415,187	417,093
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	109,728
2021	237,151
2020	7,761
2019	2,038
Prior	55,919
Loans, amortized cost basis	412,597
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	1,603
Loans, amortized cost basis	1,603
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	987
Loans, amortized cost basis	987
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	46
2021	446
2020	420
2019	322
Prior	363
Revolving loans, amortized cost	17,666
Loans, amortized cost basis	19,263	21,638
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	46
2021	332
2020	400
2019	322
Prior	363
Revolving loans, amortized cost	16,856
Loans, amortized cost basis	18,319
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	20
Revolving loans, amortized cost	454
Loans, amortized cost basis	474
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2021	114
Revolving loans, amortized cost	356
Loans, amortized cost basis	470
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	1,892
2022	23,696
2021	511
2020	11,348
2019	655
Prior	26,597
Revolving loans, amortized cost	27,341
Loans, amortized cost basis	92,040	91,485
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	1,892
2022	23,696
2021	511
2020	11,348
2019	655
Prior	23,368
Revolving loans, amortized cost	27,341
Loans, amortized cost basis	88,811
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	3,229
Loans, amortized cost basis	3,229
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,275
2022	38,916
2021	24,015
2020	63,806
2019	36,614
Prior	140,928
Revolving loans, amortized cost	6,306
Loans, amortized cost basis	313,860	323,895
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,275
2022	38,637
2021	24,015
2020	63,603
2019	36,273
Prior	138,028
Revolving loans, amortized cost	5,839
Loans, amortized cost basis	309,670
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	279
2020	203
2019	341
Prior	1,329
Loans, amortized cost basis	2,152
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	1,571
Revolving loans, amortized cost	467
Loans, amortized cost basis	2,038
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	31,278
2022	84,417
2021	19,416
2020	459,111
2019	24,797
Prior	221,466
Revolving loans, amortized cost	69,399
Loans, amortized cost basis	909,884	891,195
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	31,278
2022	84,417
2021	19,416
2020	375,899
2019	24,797
Prior	207,388
Revolving loans, amortized cost	69,399
Loans, amortized cost basis	812,594
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	68,559
Prior	4,165
Loans, amortized cost basis	72,724
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	14,653
Prior	9,913
Loans, amortized cost basis	24,566
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	27,996
2021	1,350
2020	3,993
2019	1,746
Prior	42,628
Revolving loans, amortized cost	15,428
Loans, amortized cost basis	93,141	113,594
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	27,996
2021	1,350
2020	3,993
2019	1,746
Prior	32,519
Revolving loans, amortized cost	15,428
Loans, amortized cost basis	83,032
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	3,023
Loans, amortized cost basis	3,023
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Prior	7,086
Loans, amortized cost basis	7,086
Agricultural Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Loans, amortized cost basis		28,194
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,475
2022	7,509
2021	496
2020	438
2019	18
Prior	2,667
Revolving loans, amortized cost	12,069
Loans, amortized cost basis	26,672
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,475
2022	7,509
2021	425
2020	438
2019	18
Prior	2,667
Revolving loans, amortized cost	11,619
Loans, amortized cost basis	26,151
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Revolving loans, amortized cost	450
Loans, amortized cost basis	450
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2021	71
Loans, amortized cost basis	71
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
Loans, amortized cost basis	75,762	77,694
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	2,089
2022	4,486
2021	4,012
2020	10,030
2019	5,970
Prior	11,895
Revolving loans, amortized cost	37,280
Loans, amortized cost basis	75,762
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	2,089
2022	4,302
2021	3,893
2020	7,024
2019	5,857
Prior	10,590
Revolving loans, amortized cost	33,439
Loans, amortized cost basis	67,194
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2022	184
2021	119
2020	3,006
2019	41
Prior	1,097
Revolving loans, amortized cost	3,772
Loans, amortized cost basis	8,219
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2019	72
Prior	208
Revolving loans, amortized cost	69
Loans, amortized cost basis	349
Consumer Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	887
2022	397
2021	181
2020	152
2019	113
Prior	320
Revolving loans, amortized cost	2,065
Loans, amortized cost basis	4,115	$ 4,232
Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	885
2022	397
2021	181
2020	133
2019	101
Prior	303
Revolving loans, amortized cost	2,049
Loans, amortized cost basis	4,049
Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2020	19
2019	12
Prior	17
Revolving loans, amortized cost	14
Loans, amortized cost basis	62
Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	2
Revolving loans, amortized cost	2
Loans, amortized cost basis	$ 4

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses - Allowance for Credit Losses - Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 23,060	$ 14,256
Charge-offs	(1,980)	(2,331)
Recoveries	1,760	551
Provision for credit losses	250	600
Ending balance	23,090	22,530
ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		9,454
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,251	1,909
Recoveries	205	87
Provision for credit losses	(213)	722
Ending balance	3,243	3,329
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		611
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	458	1,202
Charge-offs	(1,277)	(1,958)
Recoveries	1,282
Provision for credit losses	38	1,842
Ending balance	501	606
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		(480)
Commercial Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	17,732	9,052
Recoveries		260
Provision for credit losses	67	(1,897)
Ending balance	17,799	17,043
Commercial Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		9,628
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,233	1,060
Charge-offs	(308)	(74)
Recoveries	23	20
Provision for credit losses	258	(133)
Ending balance	1,206	1,231
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		358
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	72	512
Provision for credit losses	10	(40)
Ending balance	82	51
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		(421)
Consumer Portfolio Segment [Member]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	314	521
Charge-offs	(395)	(299)
Recoveries	250	184
Provision for credit losses	90	106
Ending balance	$ 259	270
Consumer Portfolio Segment [Member] | ASU 2016-13
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ (242)

Goodwill - Rollforward of Goodw

Goodwill - Rollforward of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Abstract]
Goodwill, Beginning Balance	$ 27,357
Impairment	0
Goodwill, Ending Balance	$ 27,357

Goodwill - Goodwill Impairment

Goodwill - Goodwill Impairment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) segment
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of Operating Segments | segment	1
Goodwill and Intangible Asset Impairment [Abstract]
Impairment | $	$ 0

Borrowings and Other Arrangem_3

Borrowings and Other Arrangements - Tabular Disclosure (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Other Borrowings [Member]
Short-term Debt [Line Items]
Balance	$ 216,800	$ 219,000
Weighted average rate	4.84%	3.67%
Overnight Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Balance	$ 150,000	$ 125,000
Weighted average rate	4.88%	4.08%
Overnight FHLB Advance[Member]
Short-term Debt [Line Items]
Balance	$ 26,800	$ 94,000
Weighted average rate	4.84%	3.44%
Long Term FHLB Advance [Member]
Short-term Debt [Line Items]
Balance	$ 40,000
Weighted average rate	3.88%

Borrowings and Other Arrangem_4

Borrowings and Other Arrangements - General Information (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Short-term Debt [Line Items]
Repurchase agreements	$ 94,061	$ 109,169
Unsecured available lines of credit with correspondent banks
Short-term Debt [Line Items]
Available lines of credit		237,000	$ 309,000
Federal Home Loan Bank Borrowings
Short-term Debt [Line Items]
Available lines of credit	762,700	718,800
Federal Reserve Line of Credit
Short-term Debt [Line Items]
Maximum borrowing capacity	40,300	42,300
Borrowings amount	$ 0	$ 0

Borrowings and Other Arrangem_5

Borrowings and Other Arrangements - Long-Term Debt (Details) - Subordinated Debt [Member] - Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Fixed interest rate	3.25%
Debt instrument, basis spread on variable rate	2.535%
Long-term debt, net	$ 49.2	$ 49.2

Borrowings and Other Arrangem_6

Borrowings and Other Arrangements - Subordinated Debentures (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Junior Subordinated Debt [Member]
Debt Instrument [Line Items]
Long-term debt, net	$ 35.5	$ 35.5

Revenue Recognition - General I

Revenue Recognition - General Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Percentage of income outside of scope of ASC 606 (as a percent)	18.22%	8.49%	24.93%

Revenue Recognition - Nonintere

Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Noninterest income
Gain (loss) on limited partnerships	$ (166)	$ (113)	$ 253
Dividends on equity investments	276	246	843
Unrealized (losses) gains recognized on equity investments	(291)	(332)	(332)
Net gains on sale of securities	45	1,032	1,487
Other	1,335	(318)	5,419
Total noninterest income	6,579	6,063	30,770
Deposit Account [Member]
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	5,380	5,548
Returned Item and Overdraft Fees [Member]
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	1,258	1,328	5,227
Other Service Charges on Deposits [Member]
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	2,093	2,164	9,340
Debit Card [Member]
Noninterest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,029	$ 2,056	$ 8,533