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Inventory (Tables)
12 Months Ended
Sep. 30, 2017
InventoryDisclosureAbstract  
Schedule Of Inventory Current [Table Text Block]
September 30,September 30,
20172016
Raw materials$4,104$2,538
Work in process3,7314,158
Finished goods1,6921,558
Parts and supplies7,3964,982
Total inventories$16,923$13,236