Property and Equipment - Components of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Components of Property, Plant and Equipment
Property and equipment	$ 16,554	$ 16,261
Less accumulated depreciation	(11,710)	(11,435)
Property and equipment, net	4,844	4,826
Land
Components of Property, Plant and Equipment
Property and equipment	886	886
Land improvements
Components of Property, Plant and Equipment
Property and equipment	520	520
Buildings and leasehold improvements
Components of Property, Plant and Equipment
Property and equipment	5,356	5,356
Machinery and equipment
Components of Property, Plant and Equipment
Property and equipment	6,687	6,758
Furniture and fixtures
Components of Property, Plant and Equipment
Property and equipment	520	532
Transportation equipment
Components of Property, Plant and Equipment
Property and equipment	784	784
Computer equipment and software
Components of Property, Plant and Equipment
Property and equipment	$ 1,801	$ 1,425