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Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Sep. 30, 2014
Inventory Disclosure [Abstract]    
Raw Materials $ 1,897 $ 1,978
Work in Process 2,596 2,618
Finished Goods 1,221 1,819
Parts and Supplies 8,039 9,633
Inventory, Net $ 13,753 $ 16,048