Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Loss from continuing operations	$ (3,421)	$ (1,870)	$ (5,285)	$ (2,011)
Income (loss) from discontinued operations, net of tax	319	(876)	(13,621)	(33,200)
Net loss	(3,102)	(2,746)	(18,906)	(35,211)
Other comprehensive income (loss):
Foreign currency translation adjustment	148	(68)	134	256
Comprehensive income (loss)	$ (2,954)	$ (2,814)	$ (18,772)	$ (34,955)