Consolidated Statements of Comprehensive Income Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (8,931)	$ (6,908)	$ (4,940)	$ (8,420)
Other comprehensive loss, net of tax
Changes in cumulative translation adjustment	(3)	(4)	14	(15)
Comprehensive loss	$ (8,934)	$ (6,912)	$ (4,926)	$ (8,435)