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Certain Financial Statement Information Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Mar. 31, 2014
Schedule of Inventories    
Finished goods $ 10,713 $ 9,375
Work in process 5,457 6,510
Raw materials 1,422 3,061
Inventories, total $ 17,592 $ 18,946