CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) - 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			2,679		2,679
Other comprehensive income (loss), net of tax				5,069	5,069
Stock dividend adjustment	$ 348		(348)		0
Stock dividend adjustment (in shares)	1,310
Cash in lieu of fractional shares			(8)		(8)
Cash in lieu of fractional shares (in shares)	(166)
Stock-based compensation	$ 134				134
Common shares issued related to restricted stock grants, net of reversals	$ 0				0
Common shares issued related to restricted stock grants, net of reversals (in shares)	38,224
Stock options exercised, net	$ 4				4
Stock options exercised, net (in shares)	10,067
Balance at Mar. 31, 2020	$ 100,673	977	33,940	5,203	140,793
Balance (in shares) at Mar. 31, 2020	12,968,567
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			3,178		3,178
Other comprehensive income (loss), net of tax				(4,172)	(4,172)
Stock dividend adjustment	$ 329		(329)		0
Stock dividend adjustment (in shares)	1,282
Cash in lieu of fractional shares			(8)		(8)
Cash in lieu of fractional shares (in shares)	(168)
Stock-based compensation	$ 144				144
Common shares issued related to restricted stock grants	$ 0				0
Common shares issued related to restricted stock grants (in shares)	38,400
Stock options exercised, net	$ 0				0
Stock options exercised, net (in shares)	6,108
Balance at Mar. 31, 2021	$ 108,000	$ 977	$ 39,956	$ 866	$ 149,799
Balance (in shares) at Mar. 31, 2021	13,680,085