Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings (Accumulated Deficit)
Beginning Balance at Dec. 31, 2020	$ 91,033	$ 121	$ 297,712	$ (2,372)	$ (204,428)
Purchase of treasury shares	(488)	0	0	(488)	0
Vesting of share-based compensation	0	2	(2)	0	0
Amortization of share-based compensation	1,131	0	1,131	0	0
Net Income (Loss)	28,380	0	0	0	28,380
Ending Balance at Mar. 31, 2021	$ 120,056	123	298,841	(2,860)	(176,048)
Purchase of treasury stock (shares)	60,177
Vesting of share-based compensation (shares)	283,113
Beginning Balance at Dec. 31, 2021	$ 292,532	168	413,017	(2,984)	(117,669)
Purchase of treasury shares	(2,462)	0	0	(2,462)	0
Treasury Stock, Value, Acquired Pursuant to Purchase Price Adjustment	(1,146)	0	0	(1,146)	0
Vesting of share-based compensation	0	3	(3)	0	0
Issuance pursuant to acquisition	12	0	12	0	0
Amortization of share-based compensation	1,101	0	1,101	0	0
Net Income (Loss)	(64,255)	0	0	0	(64,255)
Ending Balance at Mar. 31, 2022	$ 225,782	$ 171	$ 414,127	$ (6,592)	$ (181,924)
Purchase of treasury stock (shares)	96,012
Vesting of share-based compensation (shares)	318,390
Treasury Shares Pursuant to Purchase Price Adjustment (shares)	41,191
Issuance pursuant to acquisition (shares)	489