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INVENTORIES
12 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
INVENTORIES 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