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INVENTORIES (Tables)
9 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories Inventories consist of the following (in thousands):
December 31,
2020
March 31,
2020
Raw materials$15,428 $15,311 
Work in process46 819 
Finished goods5,600 5,376 
Deferred costs4,966 721 
$26,040 $22,227