Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 02-0688679 • 501(c)3 • Bar Harbor, ME
Profile
To promote a healthy lifestyle and encourage this with exercise through running, jogging and walking.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
61st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
62nd percentile
Higher net margin than 62% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
95th percentile
Faster asset growth than 95% of similar nonprofits.
Revenue Growth
96th percentile
Faster revenue growth than 96% of similar nonprofits.
Assets
Up$23,157
Up $9,692 (+72%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$23,157
Up $9,692 (+72%) from 2024
Revenue
Up$151,315
Up $93,185 (+160%) from 2024
Expenses
Up$141,623
Up $87,386 (+161%) from 2024
Net Income
Up$9,692
Up $5,799 (+149%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
To promote a healthy lifestyle and encourage this with exercise through running, jogging and walking.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $13,465 | $23,157 | ▲ $9,692 |
| Total Assets | $13,465 | $23,157 | ▲ $9,692 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $13,465 | $23,157 | ▲ $9,692 |
| Total Net Assets Fund Balance | $13,465 | $23,157 | ▲ $9,692 |
| Total Liabilities and Net Assets / Fund Balance | $13,465 | $23,157 | ▲ $9,692 |
| Name | Title |
|---|---|
| Gary Allen | President |
| David Goodrich | Director |
| Edward Swain | Director |
| Marsha Hayes | Director |
| Pattie Mcnally | Director |
| Mary Ropp | Treasurer/se |
| Melissa Relyea | Vice Preside |
| Line Item | Amount |
|---|---|
| Other Expenses | $141,623 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Advertising | $92,555 | - | - | $92,555 |
| Fees for Services Accounting | $1,295 | - | - | $1,295 |
| Other Expenses | $50 | - | - | $50 |
| Office Expenses | $12 | - | - | $12 |
| Total Functional Expenses | $141,623 | $0 | $0 | $141,623 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“All directors are provided a copy of the 990 and presentation to directors is made by the treasurer.”
“Financial information and governing documents are made openly available at the main office of mount desert island marathon, inc.”
“Organized and advertised an official marathon, set up the race according to official standards, yet utilized local support. Entrants race and enjoy mount desert island.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO PROMOTE A HEALTHY LIFESTYLE AND ENCOURAGE THIS WITH EXERCISE THROUGH RUNNING, JOGGING AND WALKING. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 92555 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 92555 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | MARY ROPP |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2072889828 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1369 STATE HIGHWAY 102 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine2Txt | 0 | SUITE 1 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BAR HARBOR |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | ME |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 04609 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 13465 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 23157 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 856 |
| IRS990/CYOtherExpensesAmt | 0 | 141623 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 150459 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 9692 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 141623 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 151315 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | ORGANIZED AND ADVERTISED AN OFFICIAL MARATHON, SET UP THE RACE ACCORDING TO OFFICIAL STANDARDS, YET UTILIZED LOCAL SUPPORT. ENTRANTS RACE AND ENJOY MOUNT DESERT ISLAND. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 47761 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 1295 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1295 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | DAVID GOODRICH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARSHA HAYES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | PATTIE MCNALLY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | EDWARD SWAIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | GARY ALLEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MELISSA RELYEA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | MARY ROPP |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TREASURER/SE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormationYr | 0 | 2003 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 151315 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 856 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 856 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | ME |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO PROMOTE A HEALTHY LIFESTYLE AND ENCOURAGE THIS WITH EXERCISE THROUGH RUNNING, JOGGING AND WALKING. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 13465 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 23157 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 13465 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 23157 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 12 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 12 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | DONATIONS |
| IRS990/OtherExpensesGrp/Desc | 1 | EVENT MANAGEMENT |
| IRS990/OtherExpensesGrp/Desc | 2 | DUES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 41711 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 6000 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 50 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 41711 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 6000 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 50 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | GARY ALLEN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 713940 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM SERVICE REVENUE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 150459 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 150459 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | ORGANIZED AND ADVERTISED AN OFFICIAL MARATHON, SET UP THE RACE ACCORDING TO OFFICIAL STANDARDS, YET UTILIZED LOCAL SUPPORT. ENTRANTS RACE AND ENJOY MOUNT DESERT ISLAND. |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 93862 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYOtherExpensesAmt | 0 | 54237 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 58130 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 3893 |
| IRS990/PYTotalExpensesAmt | 0 | 54237 |
| IRS990/PYTotalRevenueAmt | 0 | 58130 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 9692 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 151315 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 58130 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 64882 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 21008 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 18658 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 313993 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 313993 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 151315 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 58130 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 64882 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 21008 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 18658 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 313993 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 151315 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 58130 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 64882 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 21008 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 18658 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 313993 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | ORGANIZED AND ADVERTISED AN OFFICIAL MARATHON, SET UP THE RACE ACCORDING TO OFFICIAL STANDARDS, YET UTILIZED LOCAL SUPPORT. ENTRANTS RACE AND ENJOY MOUNT DESERT ISLAND. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | ALL DIRECTORS ARE PROVIDED A COPY OF THE 990 AND PRESENTATION TO DIRECTORS IS MADE BY THE TREASURER. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | FINANCIAL INFORMATION AND GOVERNING DOCUMENTS ARE MADE OPENLY AVAILABLE AT THE MAIN OFFICE OF MOUNT DESERT ISLAND MARATHON, INC. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PAGE 2, PART III, LINE 4D |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | ME |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 13465 |
| IRS990/TotalAssetsEOYAmt | 0 | 23157 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 13465 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 23157 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 141623 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 141623 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 13465 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 23157 |
| IRS990/TotalOtherProgSrvcExpenseAmt | 0 | 93862 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 141623 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 150459 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 151315 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 151315 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 13465 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 23157 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 1369 STATE HIGHWAY 102 SUITE 1 |
| IRS990/USAddress/CityNm | 0 | BAR HARBOR |
| IRS990/USAddress/StateAbbreviationCd | 0 | ME |
| IRS990/USAddress/ZIPCd | 0 | 04609 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 7 |
| IRS990/VotingMembersIndependentCnt | 0 | 7 |
| IRS990/WebsiteAddressTxt | 0 | MDIMARATHON.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | GARY ALLEN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 2072889828 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-02-26 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | MOUNT DESERT ISLAND MARATHON INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | MOUN |
| ReturnHeader/Filer/EIN | 0 | 020688679 |
| ReturnHeader/Filer/PhoneNum | 0 | 2072889828 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 1369 STATE HIGHWAY 102 SUITE 1 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | BAR HARBOR |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | ME |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 04609 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 010522385 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | JEFFREY R DOW CPA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 23 BIRCH AVE |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | ELLSWORTH |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | ME |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 04605 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 2076675518 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-02-26 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | JEFFREY R DOW |
| ReturnHeader/PreparerPersonGrp/SelfEmployedInd | 0 | X |
| ReturnHeader/ReturnTs | 0 | 2026-03-01T07:20:03-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |
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