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Inventories (Tables)
3 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory

At June 30, 2019 and March 31, 2019, the inventory balances are composed of:

 

   June 30, 2019   March 31, 2019 
Finished product  $2,809,738   $2,628,241 
Raw materials   2,207,151    1,635,130 
Work in process   536,232    509,226 
           
   $5,553,121   $4,772,597