Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Condensed Consolidated Statements of Comprehensive Loss [Abstract]
Net loss	$ (1,302)	$ (1,047)	$ (2,826)	$ (7,634)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	58	(177)	(281)	(812)
Unrealized holding gain on available-for-sale securities	1	1	14	15
Total other comprehensive income (loss)	59	(176)	(267)	(797)
Comprehensive loss	$ (1,243)	$ (1,223)	$ (3,093)	$ (8,431)