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Commitments and Contingencies (Details)
 3 Months Ended 12 Months Ended
Oct. 31, 2014
Fixed Purchase Price [Member]
Oct. 31, 2014
Purchase Price To Be Determined [Member]
Oct. 31, 2014
One Earth Energy And Nu Gen Energy [Member]
lb
T
bu
gal
Jan. 31, 2014
One Earth Energy [Member]
Commitments and Contingencies (Details) [Line Items]        
Quantity of Bushels under Forward Purchase Contract (in US Bushels)     8,400,000  
Percentage Of Purchase Contracts 13.00% 87.00%    
Quantity of Ethanol under Sales Commitment (in US Gallons)     42,500,000  
Quantity of Distillers Grains Under Sales Commitment (in US Tons)     122,000  
Quantity of Non-food Grade Corn Oil Under Sales Commitments (in Pounds)     10,200,000  
Supply Commitment Expected Period Of Delivery     They expect to deliver a majority of the ethanol, distillers grains and non-food grade corn oil through March 2015.  
Maximum Period to Notify Other Party for Grain Agreement Period Extension       100 months