Property, Plant, and Equipment - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 20,809	$ 18,557
Less: accumulated depreciation	(10,607)	(8,783)
Property, plant and equipment, net	10,202	9,774
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	1,340	1,340
Buildings and land improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 2,486	2,486
Buildings and land improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	15 years
Buildings and land improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	39 years
Manufacturing equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	7 years
Property, plant, and equipment, gross	$ 13,791	13,261
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 477	443
Furniture, fixtures and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Furniture, fixtures and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Property, plant, and equipment, gross	$ 161	140
Hardware and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 1,603	887
Hardware and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	3 years
Hardware and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (Years)	5 years
Machinery in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 951	$ 0