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INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Mar. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 15,311 $ 14,432
Work in process 819 1,181
Finished goods 5,376 7,738
Deferred costs 721 2,919
Total inventories $ 22,227 $ 26,270