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Inventory - Schedule of Inventory Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 1,023 $ 396
Work in process 2,424 2,660
Finished goods 1,798 941
Inventory, gross 5,245 3,997
Reserve for obsolescence (440) (174)
Total inventory, net $ 4,805 $ 3,823