Property, Plant and Equipment, net - Schedule of property, plant, and equipment (Details) - USD ($) $ in Thousands	Sep. 26, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 76,401	$ 62,702
Less: accumulated depreciation	26,008	18,973
Property, Plant and Equipment, Net, Total	50,393	43,729
Land [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	1,330	1,330
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	10,123	8,594
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	47,042	44,690
Construction in process [Member]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 17,906	$ 8,088