CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net loss	$ (6,328)	$ (2,703)	$ (6,416)	$ (6,554)
Other comprehensive income (loss), net of tax;
Foreign currency translation adjustment	378	(282)	133	(992)
Other comprehensive income (loss)	378	(282)	133	(992)
Comprehensive loss	$ (5,950)	$ (2,985)	$ (6,283)	$ (7,546)