Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Cash Flow From Operating Activities:
Net income (loss)	$ (5,177,834)	$ 1,166,993	$ 7,515,993
Adjustments to reconcile net income (loss) to net cash provided by (used in) operations:
Depreciation and amortization	5,253,479	5,037,645	5,021,798
(Gain) loss on sale of asset	4,864	(24,815)	(45,000)
Change in fair value of commodity derivative instruments	(375,216)	(1,240,386)	(728,073)
Changes in operating assets and liabilities:
Accounts receivable	(938,562)	79,290	575,225
Inventory	122,428	665,658	(1,199,799)
Commodity derivative instruments	679,851	953,942	1,276,397
Prepaid expenses and other current assets	(15,345)	(133,874)	(77,253)
Accounts payable	(103,915)	594,150	(107,013)
Accrued expenses	(420,609)	428,769	17,699
Accrued railcar rehabilitation costs	551,000
Net cash provided by (used in) operating activities	(419,859)	7,527,372	12,249,974
Cash Flows from Investing Activities:
Capital expenditures	(432,291)	(2,533,767)	(1,174,527)
Acquisition of non-controlling interest	(225,000)
Proceeds from disposal of asset		24,815	45,000
Net cash used in investing activities	(657,291)	(2,508,952)	(1,129,527)
Cash Flows from Financing Activities:
Checks drawn in excess of bank balance			(1,866,683)
Payments on long-term debt	(325,021)	(438,484)	(486,041)
Distributions to Heron Lake BioEnergy, LLC members		(8,568,321)
Distribution to non-controlling interest		(81,000)
Net cash used in financing activities	(325,021)	(9,087,805)	(2,352,724)
Net increase (Decrease) in Cash and Restricted Cash	(1,402,171)	(4,069,385)	8,767,723
Cash and Restricted Cash—Beginning of Period	5,995,982	10,065,367	1,297,644
Cash and Restricted Cash—End of Period	4,593,811	5,995,982	10,065,367
Supplemental Disclosure of Cash Flow Information
Interest expense	98,815	132,036	$ 212,491
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Capital expenditures included in accounts payable	$ 125,186	$ 48,568