CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Deficit [Member]	Treasury Stock [Member]	Non-controlling Interest [Member]	Total
Beginning balance at Dec. 31, 2020		$ 24	$ 432,801	$ (81,780)	$ (256,628)	$ (809)	$ 19,878	$ 113,486
Beginning balance, shares at Dec. 31, 2020		2,371,992				(12,074)
Share-based compensation			1,170					1,170
Net (loss) income					(3,397)		(60)	(3,457)
Distribution to noncontrolling interest							(1,250)	(1,250)
Vesting of restricted stock
Vesting of restricted stock, shares		24,050
Shares withheld						$ (191)		(191)
Shares withheld, shares						(5,089)
Currency translation adjustment				293				293
Ending balance at Mar. 31, 2021		$ 24	433,971	(81,487)	(260,025)	$ (1,000)	18,568	110,051
Ending balance, shares at Mar. 31, 2021		2,396,042				(17,163)
Beginning balance at Dec. 31, 2021		$ 24	437,022	(82,094)	(261,362)	$ (1,006)	18,083	110,667
Beginning balance, shares at Dec. 31, 2021		2,397,766				(17,392)
Share-based compensation			805					805
Net (loss) income					(1,535)		(194)	(1,729)
Vesting of restricted stock
Vesting of restricted stock, shares		34,066
Shares withheld						$ (372)		(372)
Shares withheld, shares						(8,694)
Currency translation adjustment				541				541
Ending balance at Mar. 31, 2022		$ 24	$ 437,827	$ (81,553)	$ (262,897)	$ (1,378)	$ 17,889	$ 109,912
Ending balance, shares at Mar. 31, 2022		2,431,832				(26,086)