UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) - USD ($) $ in Thousands	Common Stock [Member]	Warrant [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2020	$ 378	$ 4,788	$ 424,104	$ (463,007)	$ (33,737)
Net income (loss)	0	0	0	(19,328)	(19,328)
Share-based compensation expense	0	0	(204)	0	(204)
Shares withheld for taxes	0	0	(5)	0	(5)
Other	3	0	(3)	0	0
Balance at Mar. 31, 2021	381	4,788	423,892	(482,335)	(53,274)
Balance at Dec. 31, 2020	378	4,788	424,104	(463,007)	(33,737)
Net income (loss)					(54,351)
Balance at Jun. 30, 2021	381	4,788	424,814	(517,358)	(87,375)
Balance at Mar. 31, 2021	381	4,788	423,892	(482,335)	(53,274)
Net income (loss)	0	0	0	(35,023)	(35,023)
Share-based compensation expense	0	0	934	0	934
Shares withheld for taxes	0	0	(12)	0	(12)
Balance at Jun. 30, 2021	381	4,788	424,814	(517,358)	(87,375)
Balance at Dec. 31, 2021	382	4,788	425,066	(495,077)	(64,841)
Net income (loss)	0	0	0	(48,614)	(48,614)
Share-based compensation expense	0	0	518	0	518
Shares withheld for taxes	0	0	(66)	0	(66)
Other	2	0	(2)	0	0
Balance at Mar. 31, 2022	384	4,788	425,516	(543,691)	(113,003)
Balance at Dec. 31, 2021	382	4,788	425,066	(495,077)	(64,841)
Net income (loss)					(19,394)
Balance at Jun. 30, 2022	385	0	430,695	(514,471)	(83,391)
Balance at Mar. 31, 2022	384	4,788	425,516	(543,691)	(113,003)
Net income (loss)	0	0	0	29,220	29,220
Share-based compensation expense	0	0	856	0	856
Expiration of warrants	0	(4,788)	4,788	0	0
Shares withheld for taxes	0	0	(464)	0	(464)
Other	1	0	(1)	0	0
Balance at Jun. 30, 2022	$ 385	$ 0	$ 430,695	$ (514,471)	$ (83,391)