Consolidated Statements of Stockholders’ Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2018		14,083
Beginning balance at Dec. 31, 2018	$ 159,783	$ 14	$ 164,793	$ (5,024)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,468			20,468
Common stock issued upon exercise of stock options (in shares)		1
Common stock issued upon exercise of stock options	3		3
Issuance of restricted stock (in shares)		272
Stock-based compensation	9,822		9,822
Dividends	(5,729)			(5,729)
Ending balance (in shares) at Dec. 31, 2019		14,356
Ending balance at Dec. 31, 2019	184,347	$ 14	174,618	9,715	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,246			14,246
Issuance of restricted stock (in shares)		156
Issuance of restricted stock		$ 1	(1)
Forfeiture of common stock (in shares)		(1)
Stock-based compensation	7,005		7,005
Treasury stock purchases	(1,261)				(1,261)
Dividends	(4,337)			(4,337)
Ending balance (in shares) at Dec. 31, 2020		14,511
Ending balance at Dec. 31, 2020	200,000	$ 15	181,622	19,624	(1,261)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,430			18,430
Issuance of restricted stock (in shares)		229
Forfeiture of common stock (in shares)		(6)
Stock-based compensation	5,457		5,457
Treasury stock purchases	(1,315)				(1,315)
Ending balance (in shares) at Dec. 31, 2021		14,734
Ending balance at Dec. 31, 2021	$ 222,572	$ 15	$ 187,079	$ 38,054	$ (2,576)