Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 31, 2020	7,308,685
Balance at Dec. 31, 2020	$ 86,886	$ 69,578	$ 4,284	$ (16,938)	$ 143,810
Net income		13,796			13,796
Other comprehensive income (loss)			(674)		(674)
Stock-based compensation, net (in shares)	10,213
Stock-based compensation, net	$ 151				151
Treasury shares acquired				(8,124)	(8,124)
Cash dividends		(2,998)			(2,998)
Stock options exercised (in shares)	10,650
Stock options exercised	$ 94				94
Balance (in shares) at Sep. 30, 2021	7,329,548
Balance at Sep. 30, 2021	$ 87,131	80,376	3,610	(25,062)	146,055
Balance (in shares) at Jun. 30, 2021	7,325,918
Balance at Jun. 30, 2021	$ 87,131	76,150	3,893	(21,130)	146,044
Net income		5,204			5,204
Other comprehensive income (loss)			(283)		(283)
Stock-based compensation, net (in shares)	3,630
Stock-based compensation, net					0
Treasury shares acquired				(3,932)	(3,932)
Cash dividends		(978)			(978)
Balance (in shares) at Sep. 30, 2021	7,329,548
Balance at Sep. 30, 2021	$ 87,131	80,376	3,610	(25,062)	$ 146,055
Balance (in shares) at Dec. 31, 2021	7,330,548				5,888,737
Balance at Dec. 31, 2021	$ 87,131	83,971	3,462	(29,229)	$ 145,335
Net income		12,171			12,171
Other comprehensive income (loss)			(28,542)		(28,542)
Stock-based compensation, net (in shares)	20,068
Stock-based compensation, net	$ 509				509
Treasury shares acquired				(3,642)	(3,642)
Cash dividends		(2,976)			$ (2,976)
Balance (in shares) at Sep. 30, 2022	7,350,616				5,767,803
Balance at Sep. 30, 2022	$ 87,640	93,166	(25,080)	(32,871)	$ 122,855
Balance (in shares) at Jun. 30, 2022	7,347,526
Balance at Jun. 30, 2022	$ 87,562	89,900	(17,591)	(31,651)	128,220
Net income		4,249			4,249
Other comprehensive income (loss)			(7,489)		(7,489)
Stock-based compensation, net (in shares)	3,090
Stock-based compensation, net	$ 78				78
Treasury shares acquired				(1,220)	(1,220)
Cash dividends		(983)			$ (983)
Balance (in shares) at Sep. 30, 2022	7,350,616				5,767,803
Balance at Sep. 30, 2022	$ 87,640	$ 93,166	$ (25,080)	$ (32,871)	$ 122,855