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Inventories (Tables)
12 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory

At March 31, 2020 and March 31, 2019, the inventory balances are composed of:

 

    March 31, 2020     March 31, 2019  
Finished product   $ 1,916,417     $ 2,628,241  
Raw materials     1,771,006       1,635,130  
Work in process     720,650       509,226  
                 
    $ 4,408,073     $ 4,772,597