CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Dec. 31, 2016	$ 78	$ 3,229	$ 25	$ (135,537)	$ 2,229	$ (129,976)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	(9,532)	1,430	(8,102)
Foreign currency translation gain (loss)	0	0	7	0	0	7
Gain on extinguishment of subordinated debt	0	1,031	0	0	0	1,031
Stock-based compensation	0	50	0	0	0	50
Distributions	0	0	0	0	(2,573)	(2,573)
Ending balance at Sep. 30, 2017	78	4,310	32	(145,069)	1,086	(139,563)
Beginning balance at Jun. 30, 2017	78	4,283	26	(142,025)	235	(137,403)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	(3,044)	1,078	(1,966)
Foreign currency translation gain (loss)	0	0	6	0	0	6
Gain on extinguishment of subordinated debt	0	27	0	0	0	27
Distributions	0	0	0	0	(227)	(227)
Ending balance at Sep. 30, 2017	78	4,310	32	(145,069)	1,086	(139,563)
Beginning balance at Dec. 31, 2017	78	4,310	32	(141,370)	913	(136,037)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	2,040	1,480	3,520
Foreign currency translation gain (loss)	0	0	(9)	0	0	(9)
Distributions	0	0	0	0	(1,138)	(1,138)
Ending balance at Sep. 30, 2018	78	4,310	23	(135,449)	1,255	(129,783)
Beginning balance at Jun. 30, 2018	78	4,310	25	(139,562)	773	(134,376)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	4,113	715	4,828
Foreign currency translation gain (loss)	0	0	(2)	0	0	(2)
Distributions	0	0	0	0	(233)	(233)
Ending balance at Sep. 30, 2018	78	4,310	23	(135,449)	1,255	(129,783)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment due to change in accounting policy	$ 0	$ 0	$ 0	$ 3,881	$ 0	$ 3,881