Consolidated Statements Of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (25,873)	$ (26,444)	$ (7,348)
Foreign currency translation adjustment	(3,624)	(1,398)	(795)
Comprehensive loss	$ (29,497)	$ (27,842)	$ (8,143)