Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,134)	$ 3,390	$ 6,704
Other comprehensive (loss) income components:
Foreign currency translation	(1,099)	(1,433)	1,184
Unrealized loss on short term investments			(80)
Reclassification adjustment for gains included in net income			(17)
Total other comprehensive (loss) income	(1,099)	(1,433)	1,087
Comprehensive (loss) income	$ (3,233)	$ 1,957	$ 7,791