Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 422	$ (18,673)	$ (9,249)
Other comprehensive income (loss):
Unrealized loss on investments, net of tax	(68)	0	0
Foreign currency translation adjustments	61	(104)	1
Comprehensive income (loss)	$ 415	$ (18,777)	$ (9,248)