Members' Equity (Details) - USD ($)				1 Months Ended	12 Months Ended
	Dec. 19, 2015	Dec. 17, 2015	Dec. 18, 2014	Dec. 31, 2016	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Membership Units, Par value					$ 0
Membership Units, Authorized					30,606	30,606	30,606
Membership Units, Issued					30,606	30,606	30,606
Membership Units, Outstanding					30,606	30,606	30,606
Distribution Made to Membership, Cash Distribution Paid per Unit	$ 315			$ 365	$ 1,050	$ 180
Distribution Made to Member or Limited Partner, Cash Distributions Paid	$ 9,641,000			$ 11,171,000	$ 32,136,000	$ 5,509,080
Noncontrolling Interest [Member]
Distribution Made to Member or Limited Partner, Cash Distributions Paid					$ 2,006,559	$ 4,621,340
Heron Lake BioEnergy, LLC [Member]
Distribution Made to Membership, Cash Distribution Paid per Unit		$ 0.05	$ 0.12
Distribution Made to Member or Limited Partner, Cash Distributions Paid		$ 3,897,000	$ 9,352,000
Distributions received		1,971,000	4,731,000
Heron Lake BioEnergy, LLC [Member] | Noncontrolling Interest [Member]
Distribution Made to Member or Limited Partner, Cash Distributions Paid		$ 1,926,000	$ 4,621,000
Heron Lake BioEnergy, LLC [Member] | Capital Unit, Class A [Member]
Membership Units, Outstanding		39,420,949	39,420,949
Heron Lake BioEnergy, LLC [Member] | Capital Unit, Class B [Member]
Membership Units, Outstanding		15,000,000	15,000,000