Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statements of Comprehensive Loss [Abstract]
Net loss	$ (3,874)	$ (3,120)	$ (7,882)	$ (6,690)
Other comprehensive income:
Foreign currency translation adjustments	30	41	65	54
Total comprehensive loss	$ (3,844)	$ (3,079)	$ (7,817)	$ (6,636)