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Inventory (Schedule of Components of Inventory) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Sep. 30, 2014
Inventory Disclosure [Abstract]    
Raw materials $ 7,092us-gaap_InventoryRawMaterialsNetOfReserves $ 7,255us-gaap_InventoryRawMaterialsNetOfReserves
Work in-process 4,577us-gaap_InventoryWorkInProcessNetOfReserves 4,403us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods 3,832us-gaap_InventoryFinishedGoodsNetOfReserves 3,986us-gaap_InventoryFinishedGoodsNetOfReserves
Inventory $ 15,501us-gaap_InventoryNet $ 15,644us-gaap_InventoryNet