Consolidated Statements of Comprehensive Income Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (7,840)	$ (8,931)	$ (11,286)	$ (4,940)
Other comprehensive (loss) income, net of tax
Changes in cumulative translation adjustment	(4)	(3)	(2)	14
Comprehensive loss	$ (7,844)	$ (8,934)	$ (11,288)	$ (4,926)