Property and Equipment - Components of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Components of Property, Plant and Equipment
Property and equipment	$ 16,396	$ 20,541
Less accumulated depreciation	(11,100)	(11,454)
Property and equipment, net	5,296	9,087
Land
Components of Property, Plant and Equipment
Property and equipment	886	2,415
Land improvements
Components of Property, Plant and Equipment
Property and equipment	520	867
Buildings and leasehold improvements
Components of Property, Plant and Equipment
Property and equipment	5,473	6,364
Machinery and equipment
Components of Property, Plant and Equipment
Property and equipment	6,843	7,760
Furniture and fixtures
Components of Property, Plant and Equipment
Property and equipment	620	649
Transportation equipment
Components of Property, Plant and Equipment
Property and equipment	878	1,190
Computer equipment and software
Components of Property, Plant and Equipment
Property and equipment	$ 1,176	$ 1,296