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| IRS990/ActivityOrMissionDesc | 0 | To promote the members' common interest in enhancing the success of the securities business by encouraging high standards of ethical conduct among the people engaged in the securities business, and at the same time promoting good fellowship and a spirit of cooperation among the members. |
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| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Matt Cook |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4103759673 |
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| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BALTIMORE |
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| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 21202 |
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| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 288773 |
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| IRS990/CollectionsOfArtInd | 0 | false |
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| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 205170 |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 152406 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 200 International Dr |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Baltimore |
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| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 21202 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | The Four Seasons Hotel Baltimore |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONFERENCE |
| IRS990/CreditCounselingInd | 0 | false |
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| IRS990/CYOtherExpensesAmt | 0 | 224325 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 362550 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 142872 |
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| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
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| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Damon Hall |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Sam Kennedy |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Matt Cook |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Thomas Coleman Jr |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Krissy Bernstein |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Dan Muhly |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Brian Berman |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Steve Chmil |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Shawn Glisson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Rebecca Lahar |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Director |
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| IRS990/FormationYr | 0 | 2002 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
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| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
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| IRS990/GroupReturnForAffiliatesInd | 0 | false |
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| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
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| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 0 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 475 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
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| IRS990/IRPDocumentCnt | 0 | 1 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
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| IRS990/LegalDomicileStateCd | 0 | MD |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | To promote the members' common interest in enhancing the success of the securities business by encouraging high standards of ethical conduct among the people engaged in the securities business, and at the same time promoting good fellowship and a spirit of cooperation among the members. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
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| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 546211 |
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| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
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| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 546211 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
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| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | BANK CHARGES AND CC FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | ANNUAL MEETING |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 8303 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 1682 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 457 |
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| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 3000 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 0 |
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| IRS990/PoliticalCampaignActyInd | 0 | false |
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| IRS990/PrincipalOfficerNm | 0 | Damon E Hall |
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| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Winter Confer Reg & Dues |
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| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
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| IRS990/PYInvestmentIncomeAmt | 0 | 2790 |
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| IRS990/PYOtherExpensesAmt | 0 | 224961 |
| IRS990/PYOtherRevenueAmt | 0 | 600 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 324864 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -146707 |
| IRS990/PYTotalExpensesAmt | 0 | 474961 |
| IRS990/PYTotalRevenueAmt | 0 | 328254 |
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| IRS990/ReconcilationRevenueExpnssAmt | 0 | 142872 |
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| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
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| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 252791 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 257438 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleC/AgreeCarryoverPriorYearInd | 0 | false |
| IRS990ScheduleC/Form1120POLFiledInd | 0 | false |
| IRS990ScheduleC/OnlyInHouseLobbyingInd | 0 | true |
| IRS990ScheduleC/SubstantiallyAllDuesNondedInd | 0 | false |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | The Association has 3 classes of members: active members, associate members, and honorary members. Active members shall be limited to persons employed in any professional capacity as security trader or security salesman with a member firm of the National Association of Securities Dealers or an investment institution located within the states of Delaware, Maryland Lancaster, Lebanon and York in the Commonwealth of Pennsylvania. Only active members in good standing as defined in the By-Laws may vote, hold office or be a member of the Board of Governors of the Corporation. Associate members shall be limited to former active members who cease to meet the qualifications for active members but who have been approved as associate members by the Board of Governors. Honorary members shall be any persons designated as such by the Board of Governors Directors. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | There shall be a nominating committee consisting of five members, not more than one who shall be employed by the same organization. The chair person of the committee shall be the retiring President of the Corporation. The Board of Governors shall appoint four additional members. The committee shall be appointed at least one month prior to the annual meeting. The names of the committee members and its nominees shall be included in the notice calling the annual meeting. Any twenty members of the Corporation may, in writing, nominate an additional candidate or candidates for office. Notice of such nominations must be in the hands of the Secretary at least three weeks before the annual meeting and shall be communicated to the members as soon thereafter as reasonably possible. Each active member shall be entitled to one vote for each Board member to be elected at the annual members meeting, or any other actions to be taken at any annual or special meeting. An active member may cast a vote by proxy. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | By-Laws may be amended at any meeting of the organization by a vote of not less than two-thirds of the active members present, provided that written notice of the proposed amendment has been served on the Secretary by at least twenty members not less than thirty days before the meeting, and that a copy of the amendment has been sent to the members by the Secretary at least ten days previous to the meeting. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | The Form 990 is reviewed by the Treasurer before it is filed with the IRS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | The governing documents are made a available upon request for the same period of disclosure as set forth in section 6104d. The organization does not have conflict of interest policy or audited financial statements. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section A, Line 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section A, Line 7a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part VI, Section A, Line 7b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Form 990, Part VI, Section C, Line 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | true |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 403839 |
| IRS990/TotalAssetsEOYAmt | 0 | 546211 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 403839 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 546211 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 0 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 224325 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 500 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 500 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 403339 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 546211 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 362550 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 4647 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 362550 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 367197 |
| IRS990/TotalVolunteersCnt | 0 | 10 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 403839 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 546211 |
| IRS990/TravelGrp/TotalAmt | 0 | 0 |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 10 |
| IRS990/VotingMembersIndependentCnt | 0 | 10 |
| IRS990/WebsiteAddressTxt | 0 | http://midatlanticsecuritytraders.com/ |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Matt Cook |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-03-12 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | MID-ATLANTIC SECURITY TRADERS |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | ASSOCIATION INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | MID- |
| ReturnHeader/Filer/EIN | 0 | 521449753 |
| ReturnHeader/Filer/PhoneNum | 0 | 4432241970 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 1122 Kenilworth Drive 201 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | BALTIMORE |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MD |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 21204 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 030483170 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | C E A SCHOLTES AND ASSOCIATES |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 106 TUNBRIDGE ROAD |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | BALTIMORE |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MD |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 21212 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 4103230010 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | CHRIS SCHOLTES CPA |
| ReturnHeader/ReturnTs | 0 | 2026-03-12T11:00:37-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |