Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	11,914
Balance at Dec. 31, 2018		$ 116	$ 82,776	$ (142,552)	$ 199,107	$ 139,447
Net income					7,900	7,900
Restricted stock issued (in shares)	88
Restricted stock issued		1				1
Treasury stock repurchases (in shares)	(504)
Treasury stock repurchases				(14,285)		(14,285)
Share-based compensation			912			912
Treasury stock repurchases (in shares)	504
Net income					7,900	7,900
Balance (in shares) at Dec. 31, 2019	11,498
Balance at Dec. 31, 2019		117	83,688	(156,837)	207,007	133,975
Net income					17,827	17,827
Restricted stock issued (in shares)	80
Treasury stock repurchases (in shares)	122
Treasury stock repurchases				(2,281)		(2,281)
Share-based compensation			460			460
Treasury stock repurchases (in shares)	(122)
Net income					17,827	17,827
Balance (in shares) at Dec. 31, 2020	11,456
Balance at Dec. 31, 2020		117	84,148	(159,118)	224,834	149,981
Net income					76,516	76,516
Restricted stock issued (in shares)	9
Treasury stock repurchases (in shares)	(291)
Treasury stock repurchases				(10,828)		(10,828)
Share-based compensation			441			441
Treasury stock repurchases (in shares)	291
Net income					76,516	76,516
Stock Split		117	117
Stock Split		(117)	(117)
Balance (in shares) at Dec. 31, 2021	11,174
Balance at Dec. 31, 2021		$ 234	$ 84,472	$ (169,946)	$ 301,350	$ 216,110