CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (4,416)	$ (6,917)	$ (11,430)	$ (17,550)
Other comprehensive loss
Foreign currency translation	0	(75)	0	(70)
Comprehensive loss	$ (4,416)	$ (6,992)	$ (11,430)	$ (17,620)