CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Total
Balances at Dec. 31, 2022	$ 671	$ 34,528	$ 342,504	$ (56,615)	$ 321,088
Balances (in shares) at Dec. 31, 2022	5,682,079
Increase (Decrease) in Stockholders' Equity
Stock options exercised	$ 1	112			113
Stock options exercised (in shares)	5,762
Stock-based compensation		812			812
Stock-based compensation (in shares)	3,124
Treasury shares purchased				(98)	(98)
Treasury shares purchased (in shares)	(646)
Cash dividends paid			(1,137)		(1,137)
Net income			17,104		17,104
Balances at Mar. 31, 2023	$ 672	35,452	358,471	(56,713)	337,882
Balances (in shares) at Mar. 31, 2023	5,690,319
Balances at Dec. 31, 2023	$ 674	37,820	412,499	(57,889)	393,104
Balances (in shares) at Dec. 31, 2023	5,704,556
Increase (Decrease) in Stockholders' Equity
Stock options exercised		130			130
Stock options exercised (in shares)	2,400
Stock-based compensation		1,241			1,241
Stock-based compensation (in shares)	2,957
Treasury shares purchased				(172)	(172)
Treasury shares purchased (in shares)	(687)
Cash dividends paid			(1,426)		(1,426)
Net income			22,439		22,439
Balances at Mar. 31, 2024	$ 674	$ 39,191	$ 433,512	$ (58,061)	$ 415,316
Balances (in shares) at Mar. 31, 2024	5,709,226