Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Non-Voting Common Stock [Member]	Series C Preferred Stock [Member]	Total
Balance at Dec. 31, 2019	$ 54	$ 86,903	$ (2,932)	$ 28	$ (3,389)			$ 80,664
Net income			2,006					2,006
Other comprehensive income				144				144
Restricted stock expense, net of forfeitures		143						143
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes					(27)			(27)
Purchase of treasury shares					(49)			(49)
Balance at Mar. 31, 2020	54	87,046	(926)	172	(3,465)			82,881
Balance at Dec. 31, 2020	54	87,637	26,479	96	(4,069)	$ 13		110,210
Net income			6,421					6,421
Other comprehensive income				(29)				(29)
Issuance of stock based incentive plan shares, net of forfeitures
Restricted stock expense, net of forfeitures		161						161
Stock options exercised		106						106
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes					(22)			(22)
Cash dividends declared on common stock ($0.03 per share)			(196)					(196)
Balance at Mar. 31, 2021	$ 54	$ 87,904	$ 32,704	$ 67	$ (4,091)	$ 13		$ 116,651