CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Dec. 31, 2021	$ 17,760	$ 133,215	$ 242,750	$ 13,702	$ 407,427
Balance (in shares) at Dec. 31, 2021	17,760,243
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	14,278	0	14,278
Cash dividends declared	0	0	(1,950)	0	(1,950)
Other comprehensive income (loss)	0	0	0	(30,003)	(30,003)
Exercise of employee stock options and vesting of restricted stock units, net of shares for cashless exercise and net of shares for taxes	$ 19	(214)	0	0	(195)
Exercise of employee stock options and vesting of restricted stock units, net of shares for cashless exercise and net of shares for taxes (in shares)	19,662
Repurchases of common stock	$ (106)	(2,911)	0	0	(3,017)
Repurchases of common stock (in shares)	(106,498)
Stock-based compensation	$ 0	528	0	0	528
Balance at Mar. 31, 2022	$ 17,673	130,618	255,078	(16,301)	387,068
Balance (in shares) at Mar. 31, 2022	17,673,407
Balance at Dec. 31, 2022	$ 17,027	112,834	292,261	(65,108)	$ 357,014
Balance (ASU 2016-13 [Member]) at Dec. 31, 2022						$ 0	$ 0	$ (997)	$ 0	$ (997)
Balance (in shares) at Dec. 31, 2022	17,027,197				17,027,197
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	9,244	0	$ 9,244
Cash dividends declared	0	0	(2,208)	0	(2,208)
Other comprehensive income (loss)	0	0	0	4,729	4,729
Exercise of employee stock options and vesting of restricted stock units, net of shares for cashless exercise and net of shares for taxes	$ 35	(378)	0	0	(343)
Exercise of employee stock options and vesting of restricted stock units, net of shares for cashless exercise and net of shares for taxes (in shares)	35,375
Stock-based compensation	$ 0	525	0	0	525
Balance at Mar. 31, 2023	$ 17,062	$ 112,981	$ 298,300	$ (60,379)	$ 367,964
Balance (in shares) at Mar. 31, 2023	17,062,572				17,062,572