Condensed Consolidated Statements of Changes in Members’ Equity - USD ($)	Members' Equity attributable to Granite Falls Energy, LLC	Non-controlling Interest	Total
Balance - at Oct. 31, 2018	$ 75,083,782	$ 21,846,265	$ 96,930,047
Changes in Members' Equity
Member distribution	(1,224,226)		(1,224,226)
Net loss attributable to non-controlling interest		(967,125)	(967,125)
Net loss attributable to Granite Falls Energy, LLC	(3,577,502)		(3,577,502)
Balance - at Jan. 31, 2019	70,282,054	20,879,140	91,161,194
Balance - at Oct. 31, 2018	75,083,782	21,846,265	96,930,047
Changes in Members' Equity
Net loss attributable to Granite Falls Energy, LLC			(5,480,151)
Balance - at Apr. 30, 2019	68,379,405	20,350,533	88,729,938
Balance - at Jan. 31, 2019	70,282,054	20,879,140	91,161,194
Changes in Members' Equity
Net loss attributable to non-controlling interest		(528,607)	(528,607)
Net loss attributable to Granite Falls Energy, LLC	(1,902,649)		(1,902,649)
Balance - at Apr. 30, 2019	68,379,405	20,350,533	88,729,938
Balance - at Oct. 31, 2019	65,468,635	19,215,914	84,684,549
Changes in Members' Equity
Acquisition of non-controlling interest	(78,817)	(2,146,183)	(2,225,000)
Net loss attributable to non-controlling interest		(1,185,371)	(1,185,371)
Net loss attributable to Granite Falls Energy, LLC	(1,500,699)		(1,500,699)
Balance - at Jan. 31, 2020	63,889,119	15,884,360	79,773,479
Balance - at Oct. 31, 2019	65,468,635	19,215,914	84,684,549
Changes in Members' Equity
Net loss attributable to Granite Falls Energy, LLC			(13,383,886)
Balance - at Apr. 30, 2020	52,005,932	12,724,135	64,730,067
Balance - at Jan. 31, 2020	63,889,119	15,884,360	79,773,479
Changes in Members' Equity
Net loss attributable to non-controlling interest		(3,160,225)	(3,160,225)
Net loss attributable to Granite Falls Energy, LLC	(11,883,187)		(11,883,187)
Balance - at Apr. 30, 2020	$ 52,005,932	$ 12,724,135	$ 64,730,067