Income Taxes - Components of (Benefit) Provision for Income Taxes from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current income tax (benefit) provision:
Federal	$ (64)	$ (102)
State	86	101
Foreign	4	3
Total current	26	2
Deferred income tax benefit:
Federal	(1,140)	(36)
State	(247)
Total deferred	(1,387)	(36)
Total income tax benefit	$ (1,361)	$ (34)