Discontinued Operations - Components of the Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 132	$ 0	$ 1,078
Cost of sales	0	84	0	588
Gross profit	0	48	0	490
Operating expenses of discontinued operations	0	95	0	657
Other expenses	0	6	0	0
Loss on disposal of discontinued operations	0	89	12	161
Loss from discontinued operations before income taxes	0	(142)	(12)	(328)
Benefit from income taxes	0	0	0	(10)
Loss from discontinued operations	$ 0	$ (142)	$ (12)	$ (318)