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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
INVENTORIES [Abstract]    
Raw materials $ 12,621 $ 9,046
Work-in-process 3,696 3,369
Finished goods 10,469 7,182
Inventories $ 26,786 $ 19,597