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Inventory (Tables)
6 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Schedule Of Inventory Current [Table Text Block]
March 31,September 30,
20152014
Raw materials$ 1,551 $ 1,978
Work in process 2,400 2,618
Finished goods 1,809 1,819
Parts and supplies 7,609 9,633
Total inventories$ 13,369 $ 16,048