Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Beginning Balance at Dec. 31, 2021	$ 282,736	$ 1,416	$ 104,745	$ 306,105		$ (129,530)
Beginning Balance, shares at Dec. 31, 2021		14,157,000
Cash dividends	(3,010)			(3,010)
Issuance of restricted stock awards		$ 18	(18)
Issuance of restricted stock awards, shares		178,000
Exercise of stock options	6	$ 6
Exercise of stock options, shares		61,000
Repurchase of common stock	(9,031)					(9,031)
Shares withheld related to net share settlement	(848)	$ (4)	(844)
Shares withheld related to net share settlement, shares		(36,000)
Share-based compensation	2,106		2,106
Net income	26,783			26,783
Ending Balance at Mar. 31, 2022	298,742	$ 1,436	105,989	329,878		(138,561)
Ending Balance, shares at Mar. 31, 2022		14,360,000
Beginning Balance at Dec. 31, 2022	308,633	$ 1,433	112,384	345,545	$ (586)	(150,143)
Beginning Balance, shares at Dec. 31, 2022		14,330,000
Cash dividends	(2,910)			(2,910)
Issuance of restricted stock awards		$ 5	(5)
Issuance of restricted stock awards, shares		56,000
Shares withheld related to net share settlement	(31)		(31)
Shares withheld related to net share settlement, shares		(1,000)
Share-based compensation	2,104		2,104
Net income	8,689			8,689
Other comprehensive income	208				208
Ending Balance at Mar. 31, 2023	$ 316,693	$ 1,438	$ 114,452	$ 351,324	$ (378)	$ (150,143)
Ending Balance, shares at Mar. 31, 2023		14,385,000