Condensed Consolidated Statements of Comprehensive Income (Loss) (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (3,182)	$ (1,770)	$ (5,756)	$ (3,054)
Other comprehensive income:
Foreign currency translation adjustment loss	13	475	(14)	157
Total Comprehensive loss	$ (3,169)	$ (1,295)	$ (5,770)	$ (2,897)