Property and Equipment (Schedule of Property and Equipment by Major Asset Class) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment	$ 39,697	$ 46,332
Less: Accumulated depreciation and amortization	(15,325)	(14,333)
Property and equipment, net, excluding construction in progress	24,372	31,999
Construction in progress	139	975
Property and equipment, net	24,511	32,974
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,616	2,090
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	7,954	12,242
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	17,817	21,469
Computer and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	2,333	2,694
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	1,296	1,208
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	499	646
Right Of Use Assets - Finance Leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	7,938	5,739
Service Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 244	$ 244