Liabilities / Assets
85th percentile
Higher debt load relative to assets than 85% of similar nonprofits.
EIN 38-3419653 • 501(c)3 • Ann Arbor, MI
Profile
Oak trails school is a montessori school which offers before and aftercare and summer camp in addition to the academic programs offered during the academic year for its students taught by approximately 4 instructors.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
85th percentile
Higher debt load relative to assets than 85% of similar nonprofits.
Liabilities / Revenue
94th percentile
Higher debt load relative to revenue than 94% of similar nonprofits.
Net Margin
77th percentile
Higher net margin than 77% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
66th percentile
Faster asset growth than 66% of similar nonprofits.
Revenue Growth
41st percentile
Faster revenue growth than 41% of similar nonprofits.
Assets
Down$421,715
Down $4,081 (-1.0%) from 2024
Liabilities
Up$140,046
Up $5,545 (+4.1%) from 2024
Net Assets
Down$281,669
Down $9,626 (-3.3%) from 2024
Revenue
Down$128,142
Down $31,293 (-20%) from 2024
Expenses
Up$129,768
Up $8,191 (+6.7%) from 2024
Net Income
Down-$1,626
Down $39,484 (-104%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
Oak trails school is a montessori school which offers before and aftercare and summer camp in addition to the academic programs offered during the academic year for its students taught by approximately 5 instructers.
Oak trails school is a montessori school which offers before and aftercare and summer camp in addition to the academic programs offered during the academic year for its students taught by approximately 4 instructors.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $216,138 | $210,879 | ▼ $5,259 |
| Savings and Temporary Cash Investments | - | $153,391 | - |
| Cash and Non-Interest-Bearing Accounts | $209,658 | $39,126 | ▼ $170,532 |
| Total Assets | $425,796 | $421,715 | ▼ $4,081 |
| Other Assets Total | - | $18,319 | - |
| Liabilities | |||
| Unsecured Notes Loans Payable | $132,000 | $140,000 | ▲ $8,000 |
| Accounts Payable and Accrued Expenses | $2,501 | $46 | ▼ $2,455 |
| Total Liabilities | $134,501 | $140,046 | ▲ $5,545 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $291,295 | $281,669 | ▼ $9,626 |
| Total Net Assets Fund Balance | $291,295 | $281,669 | ▼ $9,626 |
| Total Liabilities and Net Assets / Fund Balance | $425,796 | $421,715 | ▼ $4,081 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | $175,758 | $43,015 | $218,773 |
| Land | $35,000 | - | $35,000 |
| Leasehold Improvements | $121 | $1,336 | $1,457 |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Heidi Knab | President | FT | $48,720 | $48,720 |
| Nanette Glencer | Secretary | - | $627 | $627 |
| Name | Title |
|---|---|
| Jenna Sendra | Vice Preside |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $89,643 |
| Other Expenses | $40,125 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Current Officers, Directors, Trustees, and Key Employees | $49,347 | - | - | $49,347 |
| Other Salaries and Wages | $28,306 | - | - | $28,306 |
| Occupancy | $25,978 | - | - | $25,978 |
| Payroll Taxes | $5,958 | - | - | $5,958 |
| Other Employee Benefits | $4,570 | - | - | $4,570 |
| Insurance | $4,569 | - | - | $4,569 |
| Depreciation Depletion | $3,287 | - | - | $3,287 |
| Information Technology | $1,767 | - | - | $1,767 |
| Pension Plan Contributions | $1,462 | - | - | $1,462 |
| Fees for Services Accounting | - | $951 | - | $951 |
| Office Expenses | $599 | - | - | $599 |
| Conferences and Meetings | $316 | - | - | $316 |
| Advertising | $67 | - | - | $67 |
| Other Expenses | $-655 | - | - | $-655 |
| Total Functional Expenses | $128,817 | $951 | $0 | $129,768 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“No review was or will be conducted.”
“The nondiscrimination policy and other policies are available to the general public through the school's website and printed literature.”
“All revenue are derived for the primary purpose of this organization which is to provide montessori school instruction to the preprimary level and in the kindergarten through six grade level.”
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/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 2501 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 46 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | OAK TRAILS SCHOOL IS A MONTESSORI SCHOOL WHICH OFFERS BEFORE AND AFTERCARE AND SUMMER CAMP IN ADDITION TO THE ACADEMIC PROGRAMS OFFERED DURING THE ACADEMIC YEAR FOR ITS STUDENTS TAUGHT BY APPROXIMATELY 4 INSTRUCTORS. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 67 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 67 |
| IRS990/AllOtherContributionsAmt | 0 | 500 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | HEIDI KNAB |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7346628016 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 6727 WARREN ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ANN ARBOR |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MI |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 48105 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 209658 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 39126 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 49347 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 49347 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 316 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 316 |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 500 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2390 |
| IRS990/CYOtherExpensesAmt | 0 | 40125 |
| IRS990/CYOtherRevenueAmt | 0 | 6600 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 118652 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1626 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 89643 |
| IRS990/CYTotalExpensesAmt | 0 | 129768 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 128142 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 3287 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 3287 |
| IRS990/Desc | 0 | ALL REVENUE ARE DERIVED FOR THE PRIMARY PURPOSE OF THIS ORGANIZATION WHICH IS TO PROVIDE MONTESSORI SCHOOL INSTRUCTION TO THE PREPRIMARY LEVEL AND IN THE KNDERGARDEN THROUGH SIXTH GRADE LEVEL. |
| 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 | 5 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 76154 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 951 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 951 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| 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/PersonNm | 0 | HEIDI KNAB |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | NANETTE GLENCER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JENNA SENDRA |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 48720 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 627 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE PRESIDE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/Form990TFiledInd | 0 | true |
| IRS990/FormationYr | 0 | 1956 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 3 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 128142 |
| IRS990/GrossRentsGrp/PersonalAmt | 0 | 6600 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 1767 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 1767 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 4569 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 4569 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2390 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2390 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 44351 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 216138 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 210879 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 255230 |
| IRS990/LegalDomicileStateCd | 0 | MI |
| 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 | OAK TRAILS SCHOOL IS A MONTESSORI SCHOOL WHICH OFFERS BEFORE AND AFTERCARE AND SUMMER CAMP IN ADDITION TO THE ACADEMIC PROGRAMS OFFERED DURING THE ACADEMIC YEAR FOR ITS STUDENTS TAUGHT BY APPROXIMATELY 4 INSTRUCTORS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 291295 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 281669 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 6600 |
| IRS990/NetRentalIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 6600 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 291295 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 281669 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 25978 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 25978 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 599 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 599 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 18319 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 4570 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 4570 |
| IRS990/OtherExpensesGrp/Desc | 0 | SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | TUITION DISCOUNTS |
| IRS990/OtherExpensesGrp/Desc | 2 | BANK CHARGES |
| IRS990/OtherExpensesGrp/Desc | 3 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 2322 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 844 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 80 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | -655 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2322 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 844 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 80 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | -655 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 28306 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 28306 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 5958 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 5958 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 1462 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 1462 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | HEIDI KNAB |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | -8000 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | DAYCARE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 117889 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 763 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 117889 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 763 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | ALL REVENUE ARE DERIVED FOR THE PRIMARY PURPOSE OF THIS ORGANIZATION WHICH IS TO PROVIDE MONTESSORI SCHOOL INSTRUCTION TO THE PREPRIMARY LEVEL AND IN THE KINDERGARTEN THROUGH SIX GRADE LEVEL. |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 52663 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYOtherExpensesAmt | 0 | 34758 |
| IRS990/PYOtherRevenueAmt | 0 | 6600 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 152835 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 37858 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 86819 |
| IRS990/PYTotalExpensesAmt | 0 | 121577 |
| IRS990/PYTotalRevenueAmt | 0 | 159435 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -1626 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/RentalIncomeOrLossGrp/PersonalAmt | 0 | 6600 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 118652 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 153391 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 35000 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 35000 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 121 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 1336 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 1457 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 175758 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 43015 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 218773 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 210879 |
| IRS990ScheduleE/ComplianceWithRevProc7550Ind | 0 | true |
| IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceAthltProgInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEducPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceOtherActyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceSchsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd | 0 | false |
| IRS990ScheduleE/GovernmentFinancialAidRcvdInd | 0 | false |
| IRS990ScheduleE/GovernmentFinancialAidRvkdInd | 0 | false |
| IRS990ScheduleE/MaintainCpyOfAllSolInd | 0 | true |
| IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd | 0 | true |
| IRS990ScheduleE/MaintainRacialCompRecsInd | 0 | true |
| IRS990ScheduleE/MaintainScholarshipsRecsInd | 0 | true |
| IRS990ScheduleE/NondiscriminatoryPolicyStmtInd | 0 | true |
| IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd | 0 | true |
| IRS990ScheduleE/PolicyStmtInBrochuresEtcInd | 0 | true |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 0 | INFORMATION ON NONDISCRIMINATORY POLICY IS AVAILABLE AT THE SCHOOL AND ON THE SCHOOL WEBSITE AT HTTP://OAKTRAILS.ORG. |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE E, LINE 3 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | ALL REVENUE ARE DERIVED FOR THE PRIMARY PURPOSE OF THIS ORGANIZATION WHICH IS TO PROVIDE MONTESSORI SCHOOL INSTRUCTION TO THE PREPRIMARY LEVEL AND IN THE KINDERGARTEN THROUGH SIX GRADE LEVEL. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE NONDISCRIMINATION POLICY AND OTHER POLICIES ARE AVAILABLE TO THE GENERAL PUBLIC THROUGH THE SCHOOL'S WEBSITE AND PRINTED LITERATURE. |
| 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 | true |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| 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 | 425796 |
| IRS990/TotalAssetsEOYAmt | 0 | 421715 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 425796 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 421715 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 500 |
| IRS990/TotalEmployeeCnt | 0 | 5 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 951 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 128817 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 129768 |
| IRS990/TotalGrossUBIAmt | 0 | 6600 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 134501 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 140046 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 134501 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 140046 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 291295 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 281669 |
| IRS990/TotalOtherProgSrvcExpenseAmt | 0 | 52663 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 128817 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 118652 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 49347 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 121042 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 128142 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 6600 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 425796 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 421715 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | true |
| IRS990/UnsecuredNotesLoansPayableGrp/BOYAmt | 0 | 132000 |
| IRS990/UnsecuredNotesLoansPayableGrp/EOYAmt | 0 | 140000 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 6727 WARREN ROAD |
| IRS990/USAddress/CityNm | 0 | ANN ARBOR |
| IRS990/USAddress/StateAbbreviationCd | 0 | MI |
| IRS990/USAddress/ZIPCd | 0 | 48105 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 3 |
| IRS990/VotingMembersIndependentCnt | 0 | 0 |
| IRS990/WebsiteAddressTxt | 0 | WWW.OAKTRAILS.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | HEIDI KNAB |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7346628016 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-02-10 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | OAK TRAILS SCHOOL INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | OAKT |
| ReturnHeader/Filer/EIN | 0 | 383419653 |
| ReturnHeader/Filer/PhoneNum | 0 | 7346628016 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 6727 WARREN RD |
| ReturnHeader/Filer/USAddress/CityNm | 0 | ANN ARBOR |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MI |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 48105 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 814639364 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | SPA ASSOCIATES LLC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 39555 ORCHARD HILL PLACE STE 130 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | NOVI |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MI |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 48375 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7344537958 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-02-27 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | SIVA ANNADI |
| ReturnHeader/ReturnTs | 0 | 2026-02-27T15:44:31-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-06-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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