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INVENTORY (Tables)
 9 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventory balances by category
Inventory balances by category are as follows:
 
December 31, 2017
 
March 31, 2017
Finished products
$
27,717

 
$
15,530

Parts and supplies
3,140

 
793

Inventory
$
30,857

 
$
16,323