Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Deficit) [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2017	$ 161,761	$ 12,361	$ 152,992	$ 38,980	$ (45,392)	$ 2,820
Stock-based compensation	1,539		1,539
Debt-to-equity conversion (Note 9)	872					872
Comprehensive (loss) income:
Net (loss) income	(67,476)			(69,335)		1,859
Other comprehensive loss	(4,219)				(4,042)	(177)
Comprehensive loss	(71,695)					1,682
Issuance of common stock including excess tax benefits of $0	492	134	358
Ending Balance at Dec. 31, 2018	92,969	12,495	154,889	(30,355)	(49,434)	5,374
Stock-based compensation	1,293		1,293
Comprehensive (loss) income:
Net (loss) income	(19,560)			(20,986)		1,426
Other comprehensive loss	(19,312)				(19,228)	(84)
Comprehensive loss	(38,872)					1,342
Issuance of common stock including excess tax benefits of $0	226	157	69
Ending Balance at Dec. 31, 2019	$ 55,616	$ 12,652	$ 156,251	$ (51,341)	$ (68,662)	$ 6,716