Commitments and Contingencies Narrative (Details) (USD $)	3 Months Ended	12 Months Ended
	Jan. 31, 2013	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Selling and Marketing Expense		$ 796,000	$ 743,000	$ 1,006,000
Entity-Wide Revenue, Major Customer, Percentage	100.00%
Natural Gas [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Future Commitment, Dollar		0	719,000
Future Commitments, Natural Gas		1,600,000
Future Commitment, Pipeline		9.5
Future Commitment, DT		1,400,000
Corn Contracts [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Inventory Dollars, Outside Storage		2,346,000
Accounts Payable		4,002,000	1,996,000
Commitments and Contingencies		350,000
Inventory, Outside storage		550,000
Purchases For Inventory		153,216,000	148,289,000	123,676,000
Ethanol Contracts [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Future Commitment, Dollar		6,283,000	8,747,000
Revenue Concentration, Future Commitment		36.00%
Distillers Grains [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Future Commitment, Dollar		3,052,000	1,773,000
Revenue Concentration, Future Commitment		27.00%	65.00%
Initial Length [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Written Notice		P1Y
Renewal Notice [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Written Notice		P90D
Corn Oil [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Written Notice		90 days
Contract, Initial Length		one year
Fees and Commissions		(74,000)	(55,000)	(44,000)
Distillers Grains [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Written Notice		P90D
Contract, Initial Length		P1Y
Fees and Commissions		$ (745,000)	$ (650,000)	$ (460,000)
Natural Gas [Member]
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Written Notice		P12M
Contract, Initial Length		P1Y