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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Mar. 31, 2014
INVENTORIES [Abstract]    
Raw materials $ 13,853 $ 14,348
Work-in-process 3,149 3,463
Finished goods 11,985 9,167
Inventories $ 28,987 $ 26,978