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Inventories (Detail) - Inventories (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Sep. 30, 2013
Inventory Disclosure [Abstract]    
Raw materials $ 2,559 $ 1,587
Work-in-process 796 404
Finished goods 3,109 2,800
Total $ 6,464 $ 4,791