Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (2,289)	$ (772)	$ (8,065)	$ (3,826)
Other comprehensive income:
Foreign currency translation adjustment loss	(1)	(221)	(15)	(51)
Total Comprehensive loss	$ (2,290)	$ (993)	$ (8,080)	$ (3,877)