Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Condensed Statements of Operations [Abstract]
Revenues	$ 50,974,398	$ 59,067,109	$ 101,976,052	$ 117,759,611
Cost of Goods Sold	48,700,701	53,522,021	98,269,478	106,586,418
Gross Profit	2,273,697	5,545,088	3,706,574	11,173,193
Operating Expenses	1,489,496	1,371,245	2,890,342	2,794,632
Operating Income	784,201	4,173,843	816,232	8,378,561
Other Income (Expense)
Other income (expense), net	31,128	(4,568)	98,807	42,406
Interest income	1,737	747	4,536	4,395
Interest expense	(104,678)	(109,027)	(180,642)	(179,494)
Total other expense, net	(71,813)	(112,848)	(77,299)	(132,693)
Net Income	712,388	4,060,995	738,933	8,245,868
Less:Net Income Attributable to Non-controlling Interest	12,874	881,356	27,893	1,299,137
Net Income Attributable to Granite Falls Energy, LLC	$ 699,514	$ 3,179,639	$ 711,040	$ 6,946,731
Weighted Average Units Outstanding - Basic and Diluted	30,606	30,606	30,606	30,606
Net Income Per Unit - Basic and Diluted	$ 22.86	$ 103.89	$ 23.23	$ 226.97
Distributions Per Unit - Basic and Diluted			$ 315.00	$ 1,050.00