Condensed Consolidated Statements of Changes in Stockholders’ Equity (Deficit) - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-In Capital	Treasury Shares	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2018		71,182,016		(253,598)
Beginning balance at Dec. 31, 2018	$ 13,332	$ 7	$ 321,753	$ (997)	$ (307,431)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation (in shares)		2,379,431
Stock-based compensation	3,645		3,645
Common stock withheld for taxes on stock-based compensation (in shares)		(165,183)
Common stock withheld for taxes on stock-based compensation	(320)		(320)
Common stock issued for extinguishment of debt (in shares)		17,641,638
Common stock issued for extinguishment of debt	32,990	$ 2	32,988
Gain on extinguishment of debt	7,078		7,078
Dividends on preferred stock	(4,825)		(4,825)
Net loss	(22,692)				(22,692)
Ending balance (in shares) at Mar. 31, 2019		91,037,902		(253,598)
Ending balance at Mar. 31, 2019	29,208	$ 9	360,319	$ (997)	(330,123)
Beginning balance (in shares) at Dec. 31, 2019		91,584,460		(253,598)
Beginning balance at Dec. 31, 2019	(238,158)	$ 9	342,382	$ (997)	(579,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation (in shares)		3,931,834
Stock-based compensation	1,064	$ 1	1,063
Common stock withheld for taxes on stock-based compensation (in shares)		(132,100)
Common stock withheld for taxes on stock-based compensation	(37)		(37)
Gain on extinguishment of debt			7,100
Dividends on preferred stock	(7,172)		(7,172)
Net loss	(1,904)				(1,904)
Ending balance (in shares) at Mar. 31, 2020		95,384,194		(253,598)
Ending balance at Mar. 31, 2020	$ (246,207)	$ 10	$ 336,236	$ (997)	$ (581,456)