Acquisition (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2013 gal	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012	Oct. 31, 2012	Oct. 31, 2011
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue	$ 94,461,603	$ 83,407,497	$ 269,219,558	$ 246,226,425
Cash Acquired from Acquisition	1,660,078	3,636,715	1,660,078	3,636,715	685,828	13,064,560
Business Acquisition, Cost of Acquired Entity, Cash Paid	8,000,000		8,000,000
Business Acquisition, Cost of Acquired Entity, Purchase Price	17,024,500		17,024,500
Plant production capacity	60,000,000
Business Acquisition, Purchase Price Allocation, Notes Payable and Long-term Debt	4,024,500		4,024,500
Business Acquisition, Cost of Acquired Entity, Liabilities Incurred	5,000,000		5,000,000
Restricted Cash and Cash Equivalents	922,955		922,955		494,000
Inventory, Net	10,147,915		10,147,915			12,013,169
Property, Plant and Equipment, Net	89,838,602		89,838,602		40,418,082
Goodwill	1,099,579		1,099,579		0
Total Assets	115,646,085		115,646,085		61,133,132
Accounts Payable, Current	2,538,717		2,538,717		3,527,840
Accrued Liabilities, Current	759,167		759,167		318,819
Stockholders' Equity Attributable to Noncontrolling Interest	6,784,847		6,784,847		0
Business Acquisition, Pro Forma Net Income (Loss)	4,446,282	(99,065)	5,948,791	5,728,847
Earnings Per Share, Basic and Diluted	$ 71.02	$ (18.48)	$ 177.32	$ 84.70
Project Viking, LLC [Member]
Business Acquisition [Line Items]
Equity Method Investment, Ownership Percentage	100.00%		100.00%
Heron Lake Bioenergy [Member]
Business Acquisition [Line Items]
Net Income (Loss) Attributable to Noncontrolling Interest	834,036	171,232	191,471	1,150,813
Cash Acquired from Acquisition	1,022,764		1,022,764
Equity Method Investment, Ownership Percentage	63.30%		63.30%
Business Acquisition, Cost of Acquired Entity, Purchase Price	17,024,500		17,024,500
Plant production capacity	50,000,000
Membership Units, Acquired	39,080,949
Membership Units, Issued	61,697,104		61,697,104
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	36.66%		36.66%
Restricted Cash and Cash Equivalents	510,955		510,955
Accounts Receivable, Net, Current	3,005,121		3,005,121
Inventory, Net	2,303,157		2,303,157
Prepaid Expense, Current	1,107,025		1,107,025
Property, Plant and Equipment, Net	51,625,774		51,625,774
Other Assets, Noncurrent	924,252		924,252
Goodwill	1,099,579		1,099,579
Total Assets	61,598,627		61,598,627
Accounts Payable, Current	(936,893)		(936,893)
Accrued Liabilities, Current	(399,623)		(399,623)
Notes Payable	(36,452,764)		(36,452,764)
Stockholders' Equity Attributable to Noncontrolling Interest	(6,784,847)		(6,784,847)
Earnings Per Share, Basic and Diluted	$ 118.02	$ (8.83)	$ 188.11	$ 149.58
Management Services Agreement, Initial Term	three years
Management Services Agreement, Monthly Fee, Year 1	$ 35,000
Management Serices Agreement, Monthly Fee Percent of Salaries, Year 2	50.00%
Management Serices Agreement, Monthly Fee Percent of Salaries, Year 2	50.00%
Management Serives Agreement, Renewal Terms	one-year
Management Services Agreement, Termination Notice	90-days
Capital Unit, Class A [Member]
Business Acquisition [Line Items]
Membership Units, Acquired	24,080,949
Capital Unit, Class B [Member]
Business Acquisition [Line Items]
Membership Units, Acquired	15,000,000