| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | false |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | Kenneth Dickerson |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 3126351800 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO Box 497068 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | Chicago |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60649 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 22167 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 37111 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | false |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 33872 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | false |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | -1081 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | false |
| IRS990EZ/ForeignOfficeInd | 0 | false |
| IRS990EZ/Form1120PolFiledInd | 0 | false |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 22167 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 37111 |
| IRS990EZ/GrossReceiptsAmt | 0 | 33872 |
| IRS990EZ/GrossReceiptsForPublicUseAmt | 0 | 0 |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InitiationFeesAndCapContriAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/BOYAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/EOYAmt | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | false |
| IRS990EZ/MethodOfAccountingAccrualInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 20195 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 21129 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 20195 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 21129 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 7200 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 1.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Kalvin Wilson |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Charles Clemens |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Bruce Nash |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | Vice President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Treasurer |
| IRS990EZ/OperateHospitalInd | 0 | false |
| IRS990EZ/Organization501cInd | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | false |
| IRS990EZ/OrganizationHadUBIInd | 0 | false |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 0 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 2015 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 27753 |
| IRS990EZ/PoliticalCampaignActyInd | 0 | false |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | Our mission is to bring about the union |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | Our mission is to bring about the union of college men of similar high ideals of scholarship and manhood in order to stimulate the attainment of ideas and ambitions of its members. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 33566 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SubjectToProxyTaxInd | 0 | false |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 1972 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 15982 |
| IRS990EZ/TanningServicesProvidedInd | 0 | false |
| IRS990EZ/TotalExpensesAmt | 0 | 34953 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 33566 |
| IRS990EZ/TotalRevenueAmt | 0 | 33872 |
| IRS990EZ/TransactionWithControlEntInd | 0 | false |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Description AmountBank Charges 118Conventions 5,508Founders Day 200Keeper of Finance 1,212Keeper of Records and Seal 538New Member 1,390Omega Psi Phi 1,800Programs 4,088Service Charge 214Standing Committee 11,297Remodeling 1,388 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Description AmountAdjustment 2,015 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Category Beginning of Year End of YearLiabilties 1,972 15,982 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Description of other expenses Part I line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Other changes in net assets or fund balances Part I line 20 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Description of total liabilities Part II line 26 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | false |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Kenneth Dickerson |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-09-26 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | Sigma Omega Chapter |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SIGM |
| ReturnHeader/Filer/EIN | 0 | 461177971 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO BOX 497068 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Chicago |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | IL |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 60649 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 921101859 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | BB&A Taxes LLC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 9058 S Clyde Ave |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Chicago |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | IL |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 60617 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7736785061 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-03-25 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Marcus Gulley |
| ReturnHeader/ReturnTs | 0 | 2026-03-25T02:02:47-04:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2023-11-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-10-31 |
| ReturnHeader/TaxYr | 0 | 2023 |