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Inventories (Details) (USD $)
Dec. 31, 2012
Sep. 30, 2012
Inventory Disclosure [Abstract]    
Raw materials, including corn, coal, chemicals and supplies $ 2,760,603 $ 2,048,130
Work in process 1,252,169 1,432,257
Ethanol and distillers grains 3,018,712 2,442,549
Total 7,031,484 5,922,936
Inventory Valuation Reserves $ 552,000 $ 368,000