2.2.0.25 true Sheet 00090 - Document - Document and Entity Information Document and Entity Information http://www.sireethanol.com/role/DocumentDocumentAndEntityInformation false R1.xml false Sheet 00100 - Statement - Balance Sheets Balance Sheets http://www.sireethanol.com/role/StatementBalanceSheets false R2.xml false Sheet 00105 - Statement - Balance Sheets (Parenthetical) Balance Sheets (Parenthetical) http://www.sireethanol.com/role/StatementBalanceSheetsParenthetical false R3.xml false Sheet 00200 - Statement - Statements of Operations Statements of Operations http://www.sireethanol.com/role/StatementStatementsOfOperations false R4.xml false Sheet 00300 - Statement - Condensed Statements of Cash Flows Condensed Statements of Cash Flows http://www.sireethanol.com/role/StatementCondensedStatementsOfCashFlows false R5.xml false Sheet 10101 - Disclosure - Nature of Business Nature of Business http://www.sireethanol.com/role/DisclosureNatureOfBusiness false R6.xml false Sheet 10201 - Disclosure - Summary of Significant Accounting Policies Summary of Significant Accounting Policies http://www.sireethanol.com/role/DisclosureSummaryOfSignificantAccountingPolicies false R7.xml false Sheet 10301 - Disclosure - Inventory Inventory http://www.sireethanol.com/role/DisclosureInventory false R8.xml false Sheet 10401 - Disclosure - Members' Equity Members' Equity http://www.sireethanol.com/role/DisclosureMembersEquity false R9.xml false Sheet 10501 - Disclosure - Revolving Loan/Credit Agreements Revolving Loan/Credit Agreements http://www.sireethanol.com/role/DisclosureRevolvingLoanCreditAgreements false R10.xml false Notes 10601 - Disclosure - Notes Payable Notes Payable http://www.sireethanol.com/role/DisclosureNotesPayable false R11.xml false Sheet 10701 - Disclosure - Fair Value Measurement Fair Value Measurement http://www.sireethanol.com/role/DisclosureFairValueMeasurement false R12.xml false Sheet 10801 - Disclosure - Incentive Compensation Incentive Compensation http://www.sireethanol.com/role/DisclosureIncentiveCompensation false R13.xml false Sheet 10901 - Disclosure - Related Party Transactions Related Party Transactions http://www.sireethanol.com/role/DisclosureRelatedPartyTransactions false R14.xml false Sheet 11001 - Disclosure - Commitments Commitments http://www.sireethanol.com/role/DisclosureCommitments false R15.xml false Sheet 11101 - Disclosure - Major Customers Major Customers http://www.sireethanol.com/role/DisclosureMajorCustomers false R16.xml false Sheet 11201 - Disclosure - Contingent Liability Contingent Liability http://www.sireethanol.com/role/DisclosureContingentLiability false R17.xml false Book All Reports All Reports false 1 12 3 0 2 94 false false As_Of_3_31_2011_dei_LegalEntityAxis_us-gaap_CommonClassAMember 1 As_Of_3_31_2010 1 As_Of_9_30_2009 1 Duration_1_1_2011_To_3_31_2011 14 Duration_10_1_2009_To_3_31_2010 33 Duration_10_1_2010_To_3_31_2011 57 As_Of_3_31_2011 36 Duration_10_1_2009_To_9_30_2010 1 As_Of_9_30_2010 36 As_Of_3_31_2011_dei_LegalEntityAxis_cik_SeriesCMember 1 As_Of_3_31_2011_dei_LegalEntityAxis_us-gaap_CommonClassBMember 1 Duration_1_1_2010_To_3_31_2010 14 true true