CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2021	$ 191	$ 41,426	$ 410,738	$ (4,341)	$ 448,014
Balance (in shares) at Dec. 31, 2021	18,764,540
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net		19		2,458	2,477
Exercise of stock options, net (in shares)	191,035
Restricted stock granted		1,658		262	1,920
Restricted stock granted, shares	19,549
Purchase of company common stock				(6,500)	(6,500)
Purchase of company common stock, shares	(100,000)
Stock-based compensation expense		1,160			1,160
Net income			18,118		18,118
Balance at Mar. 31, 2022	$ 191	44,263	428,856	(8,121)	465,189
Balance (in shares) at Mar. 31, 2022	18,875,124
Increase (Decrease) in Stockholders' Equity
Treasury Stock, Value					170
Balance at Dec. 31, 2022	$ 191	40,716	498,217	(170)	$ 538,954
Balance (in shares) at Dec. 31, 2022	19,093,676				19,093,676
Increase (Decrease) in Stockholders' Equity
Exercise of stock options, net		808		108	$ 916
Exercise of stock options, net (in shares)	37,965
Payment of dividends			(95,608)		(95,608)
Stock-based compensation expense		1,474			1,474
Net income			17,670		17,670
Balance at Mar. 31, 2023	$ 191	$ 42,998	$ 420,279	$ (62)	$ 463,406
Balance (in shares) at Mar. 31, 2023	19,131,641				19,131,641
Increase (Decrease) in Stockholders' Equity
Treasury Stock, Value					$ 62