Operating Segments - Schedule of Other Operating Segment Adjustments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Depreciation and amortization expense	$ 739	$ 903
Segment goodwill impairment expense	0	3,020
Interest expense	997	2,278
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization expense	739	903
Segment goodwill impairment expense	0	3,020
Interest expense	869	1,170
Unallocated Amounts
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0	0
Segment goodwill impairment expense	0	0
Interest expense	$ 128	$ 1,108