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Derivative Instruments - Schedule of Gains (Losses) From Derivative Instruments (Details) - Not designated as hedging instrument - USD ($)
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Ethanol contracts | Revenues    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivative $ 61,271 $ (135,797)
Corn contracts | Cost of goods sold    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivative 38,355 675,365
Natural gas contracts | Cost of goods sold    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) on derivative $ 6,321 $ 19,806