| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO PROVIDE SUPPORT TO MAIMONIDES SCHOOL OF BROOKLINE, MA |
| IRS990/AuditCommitteeInd | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | HARVEY GERTEL TRUSTEE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7814443399 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 19 BROOK RD 201 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEEDHAM |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02494 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 11303 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 10935 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 0 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 802405 |
| IRS990/CYInvestmentIncomeAmt | 0 | 24272 |
| IRS990/CYOtherExpensesAmt | 0 | 39859 |
| IRS990/CYOtherRevenueAmt | 0 | 215228 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -602764 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 842264 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 239500 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | ORGANIZATION HELPS FUND MAIMONIDES SCHOOL TO FACILITATE ITS OPERATING EXPENSES. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 802405 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 3900 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 3900 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | HARVEY GERTEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | PETER B FINN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | RICHARD SAVAL |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantAmt | 0 | 802405 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 802405 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 802405 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 239500 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 3 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 24272 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 24272 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 8035437 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 7432941 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO PROVIDE SUPPORT TO MAIMONIDES SCHOOL OF BROOKLINE, MA |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 8042740 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 7439976 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | INVESTMENT FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | STATE TAXES & FILING FE |
| IRS990/OtherExpensesGrp/Desc | 2 | BANK CHARGES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 35601 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 250 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 108 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 35601 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 250 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 108 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 4000 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 3900 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | PARTNERSHIP INCOME |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | NET REALIZED & UNREALI |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 313177 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | -97949 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 313177 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | -97949 |
| IRS990/OtherRevenueTotalAmt | 0 | 215228 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 3969283 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 3969283 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | HARVEY GERTEL |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 26370 |
| IRS990/PYOtherExpensesAmt | 0 | 39429 |
| IRS990/PYOtherRevenueAmt | 0 | 569879 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 556820 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 39429 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 596249 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -602764 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 1 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/CurrentYearAmt | 0 | 405131 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/PriorYearAmt | 0 | 596249 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/DepreciationDepletionGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/DepreciationDepletionGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/NetSTCapitalGainAdjNetIncmGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/NetSTCapitalGainAdjNetIncmGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/CurrentYearAmt | 0 | 28773 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/PriorYearAmt | 0 | 39429 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/CurrentYearAmt | 0 | 405131 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/PriorYearAmt | 0 | 596249 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/ProductionIncomeGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/ProductionIncomeGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/RecoveriesPYDistributionsGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/RecoveriesPYDistributionsGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/CurrentYearAmt | 0 | 376358 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/PriorYearAmt | 0 | 556820 |
| IRS990ScheduleA/DistributableAmountGrp/CYAdjNetIncomeDistributableAmt | 0 | 556820 |
| IRS990ScheduleA/DistributableAmountGrp/CYDistributableAsAdjustedAmt | 0 | 473297 |
| IRS990ScheduleA/DistributableAmountGrp/CYGreaterAdjustedMinimumAmt | 0 | 473297 |
| IRS990ScheduleA/DistributableAmountGrp/CYIncomeTaxImposedPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYPct85AdjustedNetIncomeAmt | 0 | 473297 |
| IRS990ScheduleA/DistributableAmountGrp/CYTotalMinAstDistributableAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistriAppDistributableAmt | 0 | 473297 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistribAppUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistributableAsAdjustedAmt | 0 | 473297 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistrCPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYTotalAnnualDistributionsAmt | 0 | 802405 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionAmt | 0 | 329108 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr1Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr2Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistriCyovToNextYrAmt | 0 | 329108 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear1Amt | 0 | 329108 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear2Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear3Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriCYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/TotalExcessDistributionCyovAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/UnderdistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYAdministrativeExpensePaidAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYDistriAttentiveSuprtOrgAmt | 0 | 802405 |
| IRS990ScheduleA/DistributionsGrp/CYDistributableAsAdjustedAmt | 0 | 473297 |
| IRS990ScheduleA/DistributionsGrp/CYDistributionYrRt | 0 | 1.000 |
| IRS990ScheduleA/DistributionsGrp/CYOtherDistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYPaidAccomplishExemptPrpsAmt | 0 | 802405 |
| IRS990ScheduleA/DistributionsGrp/CYPdInExcessIncomeActivityAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYTotalAnnualDistributionsAmt | 0 | 802405 |
| IRS990ScheduleA/DistributionsGrp/ExemptUseAssetsAcquisPaidAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/QualifiedSetAsideAmt | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | 1 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/OfficersCloseRelationshipInd | 0 | 1 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/SupportedOrgVoiceInvestmentInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/TimelyProvidedDocumentsInd | 0 | 0 |
| IRS990ScheduleA/IRSWrittenDeterminationInd | 0 | X |
| IRS990ScheduleA/MinimumAssetAmountGrp/AcquisitionIndebtednessGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AcquisitionIndebtednessGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyFMVOfSecGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyFMVOfSecGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/DiscountClaimedAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/FMVOtherNonExemptUseAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/FMVOtherNonExemptUseAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/RecoveriesPYDistriMinAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/RecoveriesPYDistriMinAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/CurrentYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 042103810 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 802405 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | MAIMONIDES SCHOOL OF BROOKLINE MASS |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType3NonFuncInd | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 802405 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 3900 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | AUDIT FEES |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 0 | 6987684 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 1 | 433592 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 2 | 11665 |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 0 | JCEP, LLP |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 1 | ARIEL FUND LIMITED |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 2 | ASCOT FUND |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 0 | F |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 1 | F |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 2 | F |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalBookValueSecuritiesAmt | 0 | 7432941 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 3900 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 0 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 802405 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | TO FACILITATE MAIMONIDES DAY SCHOOL'S OPERATING EXPENSES |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | MAIMONIDES SCHOOL |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 042103810 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 34 PHILBRICK RD |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | BROOKLINE |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 02445 |
| IRS990ScheduleI/RecipientTable/ValuationMethodUsedDesc | 0 | BOOK |
| IRS990ScheduleI/Total501c3OrgCnt | 0 | 1 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | A DRAFT OF THE FORM 990 IS PROVIDED TO THE ORGANIZATION BY THE PAID PREPARER. THE DRAFT IS REVIEWED BY THE ORGANIZATION'S SENIOR STAFF RESPONSIBLE FOR FINANCE AND OPERATIONS, WITH INPUT FROM THE APPROPRIATE BOARD MEMBERS UPON REQUEST. ONCE ANY REVISIONS HAVE BEEN MADE, THE FINAL DRAFT IS PROVIDED TO ALL BOARD MEMBERS AT THE BOARD MEETING PRIOR TO FILING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | DOCUMENTS MAY BE INSPECTED UPON REQUEST AT THE ORGANIZATION'S OFFICE. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TempOrPermanentEndowmentsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
| IRS990/TotalAssetsBOYAmt | 0 | 8046740 |
| IRS990/TotalAssetsEOYAmt | 0 | 7443876 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 8046740 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 7443876 |
| IRS990/TotalCompGreaterThan150KInd | 0 | 0 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 39859 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 802405 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 842264 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 4000 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 3900 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 4000 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 3900 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 8042740 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 7439976 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 802405 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 239500 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 239500 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 8046740 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 7443876 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990/TypeOfOrganizationAssocInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990/UnrestrictedNetAssetsGrp/BOYAmt | 0 | 4073457 |
| IRS990/UnrestrictedNetAssetsGrp/EOYAmt | 0 | 3470693 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 19 BROOK ROAD NO 201 |
| IRS990/USAddress/CityNm | 0 | NEEDHAM |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 02494 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 4 |
| IRS990/VotingMembersIndependentCnt | 0 | 3 |
| IRS990/WebsiteAddressTxt | 0 | NONE |
| IRS990/WhistleblowerPolicyInd | 0 | 0 |
| ReturnHeader/BuildTS | 0 | 2016-12-15 16:53:06Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | HARVEY GERTEL |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TRUSTEE |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7814443399 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2016-08-10 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | SAVAL CHARITABLE TRUST |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SAVA |
| ReturnHeader/Filer/EIN | 0 | 226511492 |
| ReturnHeader/Filer/PhoneNum | 0 | 7814443399 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 19 BROOK ROAD NO 201 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | NEEDHAM |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02494 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 222351602 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | ROY S SCHREIBER & CO CPAS |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 9 WASHINGTON PLACE |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | SHARON |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 020671933 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7817842929 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2016-08-10 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | ROY S SCHREIBER CPA |
| ReturnHeader/PreparerPersonGrp/SelfEmployedInd | 0 | X |
| ReturnHeader/ReturnTs | 0 | 2016-08-19T16:32:40-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2015-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2016-06-30 |
| ReturnHeader/TaxYr | 0 | 2015 |