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INVENTORY
 3 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
INVENTORY
INVENTORY
Inventory balances by category are as follows:
 
June 30, 2017
 
March 31, 2017
Finished products
$
10,819

 
$
15,530

Parts and supplies
817

 
793

Inventory
$
11,636

 
$
16,323


Estimated product returns included in inventory at June 30, 2017 and March 31, 2017 were $401 and $529, respectively.