Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	(Deficit) Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at beginning of period at Dec. 31, 2019	$ 57	$ 113,275	$ 664	$ (2,540)	$ (20,329)	$ 91,127
Balance (in shares) at Dec. 31, 2019	5,668,043
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		80				80
Exercise of stock options (in shares)	2,734
Sale of common stock, net		2,500				2,500
Sale of common stock, net (in shares)	53,293
Stock-based compensation expense		282				282
Net loss			(980)			(980)
Total other comprehensive income (loss), net of tax				(5,645)		(5,645)
Balance at end of period at Jun. 30, 2020	$ 57	116,137	(316)	(8,185)	(20,329)	87,364
Balance (in shares) at Jun. 30, 2020	5,724,070
Balance at beginning of period at Mar. 31, 2020	$ 57	115,897	378	(7,401)	(20,329)	88,602
Balance (in shares) at Mar. 31, 2020	5,721,336
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		80				80
Exercise of stock options (in shares)	2,734
Stock-based compensation expense		160				160
Net loss			(694)			(694)
Total other comprehensive income (loss), net of tax				(784)		(784)
Balance at end of period at Jun. 30, 2020	$ 57	116,137	(316)	(8,185)	(20,329)	87,364
Balance (in shares) at Jun. 30, 2020	5,724,070
Balance at beginning of period at Dec. 31, 2020	$ 63	138,413	(9,817)	(7,855)	(21,687)	99,117
Balance (in shares) at Dec. 31, 2020	6,280,856
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		168				168
Exercise of stock options (in shares)	6,370
Common stock dividend, $0.15 per share			(1,158)			(1,158)
Sale of common stock, net	$ 19	108,657				108,676
Sale of common stock, net (in shares)	1,927,049
Special dividend	$ 1	7,845	(11,250)			(3,404)
Special dividend (in shares)	125,212
Stock-based compensation expense		505				505
Net loss			(1,919)			(1,919)
Total other comprehensive income (loss), net of tax				2,963		2,963
Balance at end of period at Jun. 30, 2021	$ 83	255,588	(24,144)	(4,892)	(21,687)	204,948
Balance (in shares) at Jun. 30, 2021	8,339,487
Balance at beginning of period at Mar. 31, 2021	$ 83	255,135	(21,835)	(4,376)	(21,687)	207,320
Balance (in shares) at Mar. 31, 2021	8,333,350
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		162				162
Exercise of stock options (in shares)	6,137
Common stock dividend, $0.15 per share			(1,158)			(1,158)
Stock-based compensation expense		291				291
Net loss			(1,151)			(1,151)
Total other comprehensive income (loss), net of tax				(516)		(516)
Balance at end of period at Jun. 30, 2021	$ 83	$ 255,588	$ (24,144)	$ (4,892)	$ (21,687)	$ 204,948
Balance (in shares) at Jun. 30, 2021	8,339,487