Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Total
Balances at Dec. 31, 2021	$ 2,930	$ 29,513	$ 301,611	$ (55,848)	$ 278,206
Balances (in shares) at Dec. 31, 2021	28,330,060
Increase (Decrease) in Stockholders' Equity
Stock options exercised	$ 1	119			120
Stock options exercised (in shares)	12,000
Stock-based compensation	$ 10	2,626			2,636
Stock-based compensation (in shares)	96,485
Treasury shares purchased				(767)	(767)
Treasury shares purchased (in shares)	(28,150)
Cash dividends paid			(4,536)		(4,536)
Net income			45,429		45,429
Balances at Dec. 31, 2022	$ 2,941	32,258	342,504	(56,615)	321,088
Balances (in shares) at Dec. 31, 2022	28,410,395
Increase (Decrease) in Stockholders' Equity
Stock options exercised	$ 5	108			113
Stock options exercised (in shares)	46,440
Stock-based compensation	$ 9	3,173			3,182
Stock-based compensation (in shares)	93,765
Treasury shares purchased				(1,274)	(1,274)
Treasury shares purchased (in shares)	(27,820)
Cash dividends paid			(4,554)		(4,554)
Net income			74,549		74,549
Balances at Dec. 31, 2023	$ 2,955	35,539	412,499	(57,889)	393,104
Balances (in shares) at Dec. 31, 2023	28,522,780
Increase (Decrease) in Stockholders' Equity
Stock options exercised	$ 5	125			130
Stock options exercised (in shares)	52,025
Stock-based compensation	$ 8	4,885			4,893
Stock-based compensation (in shares)	73,060
Treasury shares purchased				(3,509)	(3,509)
Treasury shares purchased (in shares)	(28,028)
Cash dividends paid			(5,716)		(5,716)
Net income			108,839		108,839
Balances at Dec. 31, 2024	$ 2,968	$ 40,549	$ 515,622	$ (61,398)	$ 497,741
Balances (in shares) at Dec. 31, 2024	28,619,837