Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2019	$ 100,187	$ 977	$ 31,617	$ 134	$ 132,915
Balance (in shares) at Dec. 31, 2019	12,919,132
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			12,161		12,161
Other comprehensive income (loss), net of tax				4,904	4,904
Stock dividend adjustment	$ 348		(348)		0
Stock dividend adjustment (in shares)	1,310
Stock dividend declared	$ 6,307		(6,307)		0
Stock dividend declared (in shares)	649,260
Cash in lieu of fractional shares			(8)		(8)
Cash in lieu of fractional shares (in shares)	(166)
Stock-based compensation	$ 574				574
Common shares issued related to restricted stock grants and ESPP, net of restricted stock reversals	$ 111				111
Common shares issued related to restricted stock grants and ESPP, net of restricted stock reversals (in shares)	51,993
Stock options exercised, net	$ 0				0
Stock options exercised, net (in shares)	12,934
Balance at Dec. 31, 2020	$ 107,527	977	37,115	5,038	150,657
Balance (in shares) at Dec. 31, 2020	13,634,463
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			14,186		14,186
Other comprehensive income (loss), net of tax				(9,235)	(9,235)
Stock dividend adjustment	$ 329		(329)		0
Stock dividend adjustment (in shares)	1,282
Stock dividend declared	$ 6,626		(6,626)		0
Stock dividend declared (in shares)	659,471
Cash in lieu of fractional shares			(8)		(8)
Cash in lieu of fractional shares (in shares)	(168)
Stock-based compensation	$ 588				588
Common shares issued related to restricted stock grants and ESPP, net of restricted stock reversals	$ 97				97
Common shares issued related to restricted stock grants and ESPP, net of restricted stock reversals (in shares)	53,572
Stock options exercised, net	$ 0				0
Stock options exercised, net (in shares)	6,108
Stock repurchase and retirement	$ (5,374)				(5,374)
Stock repurchase and retirement (in shares)	(505,824)
Balance at Dec. 31, 2021	$ 109,793	$ 977	$ 44,338	$ (4,197)	$ 150,911
Balance (in shares) at Dec. 31, 2021	13,848,904