CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (3,102)	$ (9,703)	$ (15,901)
Other comprehensive income (loss):
Foreign currency translation adjustment	(100)	(762)	214
Comprehensive loss	$ (3,202)	$ (10,465)	$ (15,687)