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INVENTORY (Tables)
 12 Months Ended
Mar. 31, 2017
Inventory Disclosure [Abstract]  
Inventory balances by category
Inventory balances by category are as follows:
 
 
March 31,
 
 
2017
 
2016
Finished products
 
$
15,530

 
$
14,321

Parts and supplies
 
793

 
1,567

Inventory
 
$
16,323

 
$
15,888