Consolidated Statements of Changes in Members' Equity - USD ($)	Class A units	Class B units	Parent [Member]	Noncontrolling Interest	Total
Balance at Oct. 31, 2014			$ 55,047,120	$ 853,323	$ 55,900,443
Balance (in units) at Oct. 31, 2014	62,932,107	15,000,000
Increase (Decrease) in Stockholders' Equity
Member Distributions			(9,351,853)		(9,351,853)
Net income attributable to non-controlling interest				228,483	228,483
Net income attributable to Heron Lake BioEnergy, LLC			6,751,233		6,751,233
Balance at Oct. 31, 2015			52,446,500	1,081,806	53,528,306
Balance (in units) at Oct. 31, 2015	62,932,107	15,000,000
Increase (Decrease) in Stockholders' Equity
Member Distributions			(3,896,604)	(80,998)	(3,977,602)
Net income attributable to non-controlling interest				244,616	244,616
Net income attributable to Heron Lake BioEnergy, LLC			4,949,700		4,949,700
Balance at Oct. 31, 2016			53,499,596	1,245,424	$ 54,745,020
Balance (in units) at Oct. 31, 2016	62,932,107	15,000,000			77,932,107
Increase (Decrease) in Stockholders' Equity
Net income attributable to non-controlling interest				247,638	$ 247,638
Net income attributable to Heron Lake BioEnergy, LLC			7,268,355		7,268,355
Balance at Oct. 31, 2017			$ 60,767,951	$ 1,493,062	$ 62,261,013
Balance (in units) at Oct. 31, 2017	62,932,107	15,000,000			77,932,107