Operating Segments and Related Information - Schedule of Discontinued Operations Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting [Abstract]
Revenue, net	$ 0	$ (14)	$ 1,266
Cost of sales	1,350	1,112	4,743
Selling, general and administrative expense	14	184	1,253
Depreciation and amortization	8	14	35
Pretax loss from discontinued operations	(1,372)	(1,324)	(4,765)
Income tax expense	0	0	0
Net loss from discontinued operations	$ (1,372)	$ (1,324)	$ (4,765)