Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Finance leases - vehicles	$ 11,505	$ 11,081
Gross property and equipment	41,303	38,035
Less: Accumulated amortization on finance leases	(5,263)	(4,669)
Less:  Accumulated depreciation	(16,340)	(12,079)
Property and equipment, net of accumulated amortization and depreciation	19,700	21,287
Depreciation	5,500	5,600
Land and improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	400	400
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment	7,751	7,701
Machinery and equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 21,647	$ 18,853