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Inventory (Tables)
3 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Schedule Of Inventory Current [Table Text Block]
December 31,September 30,
20132013
Raw materials$ 2,611$ 2,389
Work in process 3,180 3,519
Finished goods 1,368 1,545
Parts and supplies 9,493 12,694
Total inventories$ 16,652$ 20,147