Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Cash Flow From Operating Activities
Net income	$ 7,515,993	$ 5,194,316	$ 6,979,716
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	5,021,798	4,781,673	4,593,710
Gain on sale of asset	(45,000)
Change in fair value of commodity derivative instruments	(728,073)	(1,054,729)	(831,227)
Changes in operating assets and liabilities:
Restricted cash			264,086
Accounts receivable	575,225	1,063,979	(1,615,200)
Inventory	(1,199,799)	(605,199)	(72,079)
Commodity derivative instruments	1,276,397	1,069,540	591,578
Prepaid expenses and other current assets	(77,253)	(23,380)	131,267
Accounts payable	(107,013)	1,313,978	(124,087)
Accrued expenses	17,699	209,657	(27,866)
Net cash provided by operating activities	12,249,974	11,949,835	9,889,898
Cash Flows from Investing Activities
Capital expenditures	(1,174,527)	(2,484,667)	(6,181,858)
Proceeds from disposal of asset	45,000
Net cash used in investing activities	(1,129,527)	(2,484,667)	(6,181,858)
Cash Flows from Financing Activities
Proceeds from long-term debt		9,820,222	13,440,990
Checks drawn in excess of bank balance	(1,866,683)	30,001	1,836,682
Payments on long-term debt	(486,041)	(15,166,428)	(9,169,704)
Distributions to Heron Lake BioEnergy, LLC members		(3,896,604)	(9,351,853)
Distribution to non-controlling interest		(80,998)
Net cash used in financing activities	(2,352,724)	(9,293,807)	(3,243,885)
Net increase in cash	8,767,723	171,361	464,155
Cash - Beginning of period	1,297,644	1,126,283	662,128
Cash - End of period	10,065,367	1,297,644	1,126,283
Supplemental Disclosure of Cash Flow Information
Interest expense	$ 212,491	$ 397,837	444,625
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Capital expenditures included in accounts payable			$ 349,482