DERIVATIVE INSTRUMENTS, Gains (losses) (Details) - Derivatives not designated as hedging instruments - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Derivative Instruments
Total gain (loss)	$ (319,246)	$ 441,182	$ (999,167)	$ 670,652
Corn contracts | Cost of goods sold
Derivative Instruments
Total gain (loss)	(287,301)	409,362	(803,632)	638,832
Ethanol contracts | Revenues.
Derivative Instruments
Total gain (loss)	$ (31,945)	$ 31,820	$ (195,535)	$ 31,820