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Inventories (Details) - USD ($)
Jun. 30, 2022
Dec. 31, 2021
Inventories    
Raw materials $ 1,759,561 $ 440,759
Work-in-process 1,700,549 549,369
Finished goods 166,101 108,508
Inventory reserve (8,563) (25,418)
Inventory, Net $ 3,617,648 $ 1,073,218