Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 55,164	$ 53,515
Less accumulated depreciation	(34,569)	(33,385)
Total property, plant and equipment, net	20,595	20,130
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,565	1,565
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,079	17,920
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	32,620	32,073
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	640	640
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	900	900
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,360	$ 417

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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