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Nature Of Business	3 Months Ended
Nature Of Business	Dec. 31, 2017
Nature Of Business [Abstract]
Nature Of Business	Nature of Business Southwest Iowa Renewable Energy, LLC (the “Company”), located in Council Bluffs, Iowa, was formed in March, 2005 and began producing ethanol in February, 2009. The Company is permitted to produce up to 140 million gallons of ethanol per year. The Company sells its ethanol, distillers grains, corn syrup and corn oil in the continental United States, Mexico, and the Pacific Rim.