Income Taxes (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax expense (benefit):
Federal	$ 26	$ 0	$ 97
State and local	35	19	76
Foreign	272	28
Total current tax expense	333	47	173
Deferred tax expense:
Federal	0	0	0
State and local	0	0	0
Foreign	(46)	(12)
Total deferred tax expense	(46)	(12)	0
Total income tax expense	$ 287	$ 35	$ 173