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Derivative Instruments Narrative (Details) (USD $)
Oct. 31, 2013
Oct. 31, 2012
Margin requirements [Member]
   
Derivative [Line Items]    
Restricted Cash and Cash Equivalents, Current $ 393,750 $ 494,000
Corn Contracts [Member]
   
Derivative [Line Items]    
Outstanding corn derivative instrument 1,125,000 1,235,000