Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Preferred stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2018		24,645,825	91,784
Beginning balance at Dec. 31, 2018	$ 222,547	$ 142,655		$ 174,379	$ (94,487)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued pursuant to stock-based compensation plan (in shares)		299,769
Payment-in-kind dividends (in shares)			8,544
Stock-based compensation	1,359			1,359
Net loss	(103,019)				(103,019)
Ending balance (in shares) at Dec. 31, 2019		24,945,594	100,328
Ending balance at Dec. 31, 2019	120,887	$ 142,655		175,738	(197,506)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued pursuant to stock-based compensation plan (in shares)		366,617
Shares issued pursuant to stock-based compensation plan	274			274
Payment-in-kind dividends (in shares)			4,566
Net loss	(118,139)				(118,139)
Cancellation of Predecessor equity (in shares)		(25,312,211)	(104,894)
Cancellation of Predecessor equity	(3,022)	$ (142,655)		(176,012)	315,645
Issuance of Successor common stock (in shares)		10,000,149
Issuance of Successor common stock	91,874	$ 10		91,864
Issuance of Successor warrants	1,089			1,089
Ending balance (in shares) at Nov. 30, 2020		10,000,149	0
Ending balance at Nov. 30, 2020	92,963	$ 10		92,953	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(716)				(716)
Ending balance (in shares) at Dec. 31, 2020		10,000,149	0
Ending balance at Dec. 31, 2020	$ 92,247	$ 10		$ 92,953	$ (716)