Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2021	$ 574,344	$ 16	$ 380,037	$ 194,291
Balance, shares at Dec. 31, 2021		15,940
Issuance of shares of common stock under restricted stock award agreements, shares		115
Stock-based compensation	2,485		2,485
Shares issued for exercise of stock options	479		479
Shares issued for exercise of stock options, shares		13
Net income	8,470			8,470
Balance at Mar. 31, 2022	585,778	$ 16	383,001	202,761
Balance, shares at Mar. 31, 2022		16,068
Balance at Dec. 31, 2022	633,540	$ 16	393,208	240,316
Balance, shares at Dec. 31, 2022		16,128
Issuance of shares of common stock under restricted stock award agreements, shares		76
Stock-based compensation	2,646		2,646
Shares issued for exercise of stock options	25		25
Net income	12,675			12,675
Balance at Mar. 31, 2023	$ 648,886	$ 16	$ 395,879	$ 252,991
Balance, shares at Mar. 31, 2023		16,204