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Derivative Instrument, Income Statement (Details) (USD $)
12 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments, Gain (Loss) Recognized in Income, Net $ 1,134,402us-gaap_DerivativeGainLossOnDerivativeNet $ 155,563us-gaap_DerivativeGainLossOnDerivativeNet $ (1,651,799)us-gaap_DerivativeGainLossOnDerivativeNet
Corn Contracts [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative cost of goods $ 1,134,402gfe_DerivativeCostOfGoods
/ us-gaap_DerivativeInstrumentRiskAxis
= gfe_CornContractsMember
$ 155,563gfe_DerivativeCostOfGoods
/ us-gaap_DerivativeInstrumentRiskAxis
= gfe_CornContractsMember
$ (1,651,799)gfe_DerivativeCostOfGoods
/ us-gaap_DerivativeInstrumentRiskAxis
= gfe_CornContractsMember