Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statements of Comprehensive Loss [Abstract]
Net loss	$ (3,343)	$ (2,144)	$ (10,033)	$ (7,159)
Other comprehensive income (loss):
Foreign currency translation adjustments	(46)	67	8	39
Total comprehensive loss	$ (3,389)	$ (2,077)	$ (10,025)	$ (7,120)