Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
U.S. federal, state and local - current									$ (72)	$ 0	$ (110)
Foreign - current									(583)	(3,414)	(6,709)
Total current tax (benefit)									(655)	(3,414)	(6,819)
Deferred:
Foreign - deferred									1	(990)	995
Total deferred tax (benefit) expense									1	(990)	995
Total income tax (benefit)	$ (349)	$ 45	$ (160)	$ (190)	$ (999)	$ (1,133)	$ (250)	$ (2,022)	$ (654)	$ (4,404)	$ (5,824)