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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment due to change in accounting policy	$ 0	$ 0	$ 0	$ 3,881	$ 0	$ 3,881
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	(2,073)	765	(1,308)
Foreign currency translation gain (loss)	0	0	(7)	0	0	(7)
Distributions	0	0	0	0	(905)	(905)
Ending balance at Jun. 30, 2018	78	4,310	25	(139,562)	773	(134,376)
Beginning balance at Mar. 31, 2018	78	4,310	30	(139,475)	1,147	(133,910)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	(87)	531	444
Foreign currency translation gain (loss)	0	0	(5)	0	0	(5)
Distributions	0	0	0	0	(905)	(905)
Ending balance at Jun. 30, 2018	78	4,310	25	(139,562)	773	(134,376)
Beginning balance at Dec. 31, 2018	78	4,310	17	(139,129)	2,621	(132,103)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	(5,154)	220	(4,934)
Foreign currency translation gain (loss)	0	0	2	0	0	2
Distributions	0	0	0	0	(984)	(984)
Ending balance at Jun. 30, 2019	78	4,310	19	(144,283)	1,857	(138,019)
Beginning balance at Mar. 31, 2019	78	4,310	19	(142,542)	2,378	(135,757)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	(1,741)	(253)	(1,994)
Distributions	0	0	0	0	(268)	(268)
Ending balance at Jun. 30, 2019	$ 78	$ 4,310	$ 19	$ (144,283)	$ 1,857	$ (138,019)