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Inventories (Tables)
6 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory

At September 30, 2018 and March 31, 2018, the inventory balances are composed of:

 

    September 30, 2018     March 31, 2018  
Finished product   $ 1,550,590     $ 809,680  
Raw materials     1,559,864       1,471,666  
Work in process     267,952       123,661  
                 
    $ 3,378,406     $ 2,405,007