Annual report pursuant to Section 13 and 15(d)

Inventories, Net - Additional Information (Details)

v3.20.4
Inventories, Net - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Inventories, Net      
Net realizable value on inventory write-down $ 500,600 $ 773,235  
Inventory Reserve For Obsolescence   $ 1,273,835 $ 4,572,659