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Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Sep. 30, 2015
Inventory Disclosure [Abstract]    
Raw Materials $ 3,223 $ 1,641
Work in Process 3,943 2,641
Finished Goods 1,071 1,199
Parts and Supplies 9,195 8,496
Inventory, Net $ 17,432 $ 13,977