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INVENTORIES
9 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
INVENTORIES INVENTORIES
Inventories are stated at the lower of actual cost or net realizable value. Cost is determined by using the first in, first out (FIFO) method. Inventories consist of the following (in thousands):

December 31,
2019
 
March 31,
2019
Raw materials
$
14,980

 
$
14,432

Work in process
121

 
1,181

Finished goods
4,473

 
7,738

Deferred costs
5,403

 
2,919


$
24,977

 
$
26,270