Discontinued Operations - Components Included in Loss (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]
Net sales									$ 1,078	$ 6,262	$ 16,564
Cost of sales									588	4,690	12,254
Gross Profit									490	1,572	4,310
Operating expenses of discontinued operations									657	3,079	4,746
Other expenses (income)									0	64	(68)
(Loss) gain on disposal of discontinued operations									(534)	(30)	3,915
(Loss) income from discontinued operations before income taxes									(701)	(1,601)	3,547
(Benefit from) provision for income taxes									(10)	(2)	1
(Loss) income from discontinued operations	$ (373)	$ (142)	$ (81)	$ (95)	$ (685)	$ (659)	$ (238)	$ (17)	$ (691)	$ (1,599)	$ 3,546