Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Non-Voting Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2020	$ 54	$ 13	$ 87,637	$ 26,479	$ 96	$ (4,069)	$ 110,210
Net income				13,986			13,986
Other comprehensive income (loss)					(59)		(59)
Issuance of stock based incentive plan shares, net of forfeitures
Restricted stock expense, net of forfeitures			527				527
Stock options exercised			106				106
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes						(43)	(43)
Purchase of treasury shares						(970)	(970)
Dividends declared				(588)			(588)
Balance at Sep. 30, 2021	54	13	88,270	39,877	37	(5,082)	123,169
Balance at Jun. 30, 2021	54	13	88,099	35,997	50	(4,354)	119,859
Net income				4,076			4,076
Other comprehensive income (loss)					(13)		(13)
Restricted stock expense, net of forfeitures			171				171
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes						(20)	(20)
Purchase of treasury shares						(708)	(708)
Dividends declared				(196)			(196)
Balance at Sep. 30, 2021	54	13	88,270	39,877	37	(5,082)	123,169
Balance at Dec. 31, 2021	55	13	88,528	44,084	(170)	(7,180)	125,330
Net income				13,493			13,493
Other comprehensive income (loss)					(1,484)		(1,484)
Issuance of stock based incentive plan shares, net of forfeitures	1		(1)
Restricted stock expense, net of forfeitures			648				648
Stock options exercised			132				132
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes						(73)	(73)
Purchase of treasury shares						(2,339)	(2,339)
Dividends declared				(835)			(835)
Balance at Sep. 30, 2022	56	13	89,307	56,742	(1,654)	(9,592)	134,872
Balance at Jun. 30, 2022	56	13	89,061	52,814	(1,437)	(7,816)	132,691
Net income				4,249			4,249
Other comprehensive income (loss)					(217)		(217)
Restricted stock expense, net of forfeitures			246				246
Acquisition of treasury shares surrendered upon vesting of restricted stock for payment of taxes						(25)	(25)
Purchase of treasury shares						(1,751)	(1,751)
Dividends declared				(321)			(321)
Balance at Sep. 30, 2022	$ 56	$ 13	$ 89,307	$ 56,742	$ (1,654)	$ (9,592)	$ 134,872