Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (13,808)	$ (6,079)	$ (7,074)
Other comprehensive loss, net of tax
Changes in cumulative translation adjustment	(22)	(2)	(47)
Comprehensive loss	$ (13,830)	$ (6,081)	$ (7,121)