CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]		Additional Paid-in Capital [Member]	Retained Earnings [Member]		AOCI Including Portion Attributable to Noncontrolling Interest [Member]	Noncontrolling Interest [Member]		Parent [Member]	Total
Balance, at Dec. 31, 2019	$ 4	[1]	$ 200,507	$ (183,149)	[1]	$ (14,422)	$ 1,081	[1]	$ 4,021	$ 2,940
Stock-based compensation expense		[1]	252		[1]			[1]	252	252
Repurchase of common stock for employee tax withholding		[1]	(172)		[1]			[1]	(172)	(172)
Preferred stock accrued dividends			(307)						(307)	(307)
Net income (loss)		[1]		(12,038)	[1]		40	[1]	(11,998)	(12,038)
Foreign currency translation adjustment						(1,634)			(1,634)	(1,634)
Balance, at Mar. 31, 2020	4		200,280	(195,187)		(16,056)	1,121		(9,838)	(10,959)
Balance, at Dec. 31, 2020	6	[1]	221,590	(197,423)	[1]	(12,446)	1,211	[1]	12,938	11,727	[2]
Stock-based compensation expense		[1]	382		[1]			[1]	382	382
Repurchase of common stock for employee tax withholding		[1]	(164)		[1]			[1]	(164)	(164)
Conversion of convertible senior notes			5,631						5,631	5,631
Preferred stock accrued dividends		[1]	(326)		[1]			[1]	(326)	(326)
Net income (loss)		[1]		(24,086)	[1]		35	[1]	(24,051)	(24,086)
Foreign currency translation adjustment		[1]			[1]	(58)		[1]	(58)	(58)
Balance, at Mar. 31, 2021	$ 6	[1]	$ 227,113	$ (221,509)	[1]	$ (12,504)	$ 1,246	[1]	$ (5,648)	$ (6,894)	[2]

[1] After giving effect to a 1 for 10 reverse stock split effective July 9, 2020.

[2] After giving effect to a 1 for 10 reverse stock split effective July 9, 2020.