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INVENTORIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Mar. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 13,221 $ 13,189
Work in process 152 16
Finished goods 4,362 6,168
Deferred costs 3,765 3,440
Total inventories $ 21,500 $ 22,813