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INVENTORY (Tables)
3 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory Balances by Category
Inventory balances by category were as follows:
 June 30, 2020March 31, 2020
Finished products$18,039  $17,984  
Parts and supplies1,447  1,124  
Inventory$19,486  $19,108