Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statements of Comprehensive Loss [Abstract]
Net loss	$ (3,245)	$ (3,343)	$ (11,127)	$ (10,033)
Other comprehensive income (loss):
Foreign currency translation adjustments	(82)	(46)	(17)	8
Total comprehensive loss	$ (3,327)	$ (3,389)	$ (11,144)	$ (10,025)