CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
Net loss	$ (4,638)	$ (4,889)	$ (10,633)	$ (10,433)
Other comprehensive income
Foreign currency translation	5		5
Comprehensive loss	$ (4,633)	$ (4,889)	$ (10,628)	$ (10,433)