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INVENTORIES (Tables)
12 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories are stated at the lower of actual cost or net realizable value. Cost is determined by using the FIFO method. Inventories consisted of the following (in thousands):
 March 31,
 20202019
Raw materials$15,311  $14,432  
Work in process819  1,181  
Finished goods5,376  7,738  
Deferred costs721  2,919  
$22,227  $26,270