| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 3900 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 3900 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO PROVIDE SUPPORT TO MAIMONIDES SCHOOL OF BROOKLINE, MA |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | HARVEY GERTEL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7814443399 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 19 BROOK ROAD STE 201 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEEDHAM |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02494 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 6269 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 5135 |
| 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 | 60962 |
| IRS990/CYOtherExpensesAmt | 0 | 50122 |
| IRS990/CYOtherRevenueAmt | 0 | 493340 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 504180 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 50122 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 554302 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | ORGANIZATION HELPS FUND MAIMONIDES SCHOOL TO FACILITATE ITS OPERATING EXPENSES. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 3900 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 3900 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| 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 | false |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 554302 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 3 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 60962 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 60962 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 8254177 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 8759491 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO PROVIDE SUPPORT TO MAIMONIDES SCHOOL OF BROOKLINE, MA |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 8256546 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 8760726 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | INVESTMENT FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | STATE TAXES & FILING FEES |
| IRS990/OtherExpensesGrp/Desc | 2 | BANK CHARGES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 45881 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 287 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 54 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 45881 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 287 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 54 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | NET REALIZED & UNREALIZED GAI |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | PARTNERSHIP INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 512464 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | -19124 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 512464 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | -19124 |
| IRS990/OtherRevenueTotalAmt | 0 | 493340 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 3969283 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 3969283 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | HARVEY GERTEL |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 40215 |
| IRS990/PYOtherExpensesAmt | 0 | 42918 |
| IRS990/PYOtherRevenueAmt | 0 | 815236 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 812533 |
| IRS990/PYTotalExpensesAmt | 0 | 42918 |
| IRS990/PYTotalRevenueAmt | 0 | 855451 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 504180 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | true |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/CurrentYearAmt | 0 | 60962 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/AdjustedGrossIncomeGrp/PriorYearAmt | 0 | 40215 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/DepreciationDepletionGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/NetSTCapitalGainAdjNetIncmGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/CurrentYearAmt | 0 | 50122 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherExpensesGrp/PriorYearAmt | 0 | 42918 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/CurrentYearAmt | 0 | 60962 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/OtherGrossIncomeGrp/PriorYearAmt | 0 | 40215 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/ProductionIncomeGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/RecoveriesPYDistributionsGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/CurrentYearAmt | 0 | 10840 |
| IRS990ScheduleA/AdjustedNetIncomeGrp/TotalAdjustedNetIncomeGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYAdjNetIncomeDistributableAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYDistributableAsAdjustedAmt | 0 | 241 |
| IRS990ScheduleA/DistributableAmountGrp/CYGreaterAdjustedMinimumAmt | 0 | 241 |
| IRS990ScheduleA/DistributableAmountGrp/CYIncomeTaxImposedPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYPct85AdjustedNetIncomeAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYTotalMinAstDistributableAmt | 0 | 241 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistribAppUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYDistributableAsAdjustedAmt | 0 | 241 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistrCPYAmt | 0 | 241 |
| IRS990ScheduleA/DistributionAllocationsGrp/CyovAppliedUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/CYTotalAnnualDistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovAmt | 0 | 8963 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr1Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr2Amt | 0 | 9204 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr3Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistributionCyovYr4Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessDistriCyovToNextYrAmt | 0 | 8963 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear1Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear2Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear3Amt | 0 | 8963 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear4Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/ExcessFromYear5Amt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriCYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/RemainingUnderdistriPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributionAllocationsGrp/TotalExcessDistributionCyovAmt | 0 | 9204 |
| IRS990ScheduleA/DistributionAllocationsGrp/UnderdistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYAdministrativeExpensePaidAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYDistriAttentiveSuprtOrgAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYDistributableAsAdjustedAmt | 0 | 241 |
| IRS990ScheduleA/DistributionsGrp/CYDistributionYrRt | 0 | 0.000000000000 |
| IRS990ScheduleA/DistributionsGrp/CYOtherDistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYPaidAccomplishExemptPrpsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYPdInExcessIncomeActivityAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/CYTotalAnnualDistributionsAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/ExemptUseAssetsAcquisPaidAmt | 0 | 0 |
| IRS990ScheduleA/DistributionsGrp/QualifiedSetAsideAmt | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | true |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | false |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/OfficersCloseRelationshipInd | 0 | true |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/SupportedOrgVoiceInvestmentInd | 0 | false |
| IRS990ScheduleA/Form990SchAType3SprtOrgAllGrp/TimelyProvidedDocumentsInd | 0 | false |
| IRS990ScheduleA/IRSWrittenDeterminationInd | 0 | X |
| IRS990ScheduleA/MinimumAssetAmountGrp/AcquisitionIndebtednessGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/CurrentYearAmt | 0 | 5700 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AdjustedFMVLessIndebtednessGrp/PriorYearAmt | 0 | 7000 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/CurrentYearAmt | 0 | 5700 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyCashBalancesGrp/PriorYearAmt | 0 | 7000 |
| IRS990ScheduleA/MinimumAssetAmountGrp/AverageMonthlyFMVOfSecGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/CurrentYearAmt | 0 | 86 |
| IRS990ScheduleA/MinimumAssetAmountGrp/CashDeemedCharitableGrp/PriorYearAmt | 0 | 105 |
| IRS990ScheduleA/MinimumAssetAmountGrp/DiscountClaimedAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/FMVOtherNonExemptUseAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/CurrentYearAmt | 0 | 5614 |
| IRS990ScheduleA/MinimumAssetAmountGrp/NetVlNonExemptUseAssetsGrp/PriorYearAmt | 0 | 6895 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/CurrentYearAmt | 0 | 196 |
| IRS990ScheduleA/MinimumAssetAmountGrp/PctOfNetVlNonExemptUseAstGrp/PriorYearAmt | 0 | 241 |
| IRS990ScheduleA/MinimumAssetAmountGrp/RecoveriesPYDistriMinAssetGrp/PriorYearAmt | 0 | 0 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/CurrentYearAmt | 0 | 5700 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalFMVOfNonExemptUseAssetGrp/PriorYearAmt | 0 | 7000 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/CurrentYearAmt | 0 | 196 |
| IRS990ScheduleA/MinimumAssetAmountGrp/TotalMinimumAssetGrp/PriorYearAmt | 0 | 241 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 042103810 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | true |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | MAIMONIDES SCHOOL OF BROOKLINE |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType3NonFuncInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/CloselyHeldEquityInterestsGrp/BookValueAmt | 0 | 8759491 |
| IRS990ScheduleD/CloselyHeldEquityInterestsGrp/MethodValuationCd | 0 | F |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 50122 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 554302 |
| IRS990ScheduleD/TotalBookValueSecuritiesAmt | 0 | 8759491 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 50122 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 554302 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 554302 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 50122 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | false |
| 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 FORM 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. DOCUMENTS MAY BE INSPECTED UPON REQUEST AT THE ORGANIZATION'S OFFICE. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | DOCUMENTS MAY BE INSPECTED UPON REQUEST AT THE ORGANIZATION'S OFFICE. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI |
| 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 | MA |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TempOrPermanentEndowmentsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 8260446 |
| IRS990/TotalAssetsEOYAmt | 0 | 8764626 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 8260446 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 8764626 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 50122 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 50122 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 3900 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 3900 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 3900 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 3900 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 8256546 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 8760726 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 554302 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 554302 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 8260446 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 8764626 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationAssocInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UnrestrictedNetAssetsGrp/BOYAmt | 0 | 4287263 |
| IRS990/UnrestrictedNetAssetsGrp/EOYAmt | 0 | 4791443 |
| IRS990/USAddress/AddressLine1Txt | 0 | 19 BROOK ROAD STE 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 | false |
| ReturnHeader/BuildTS | 0 | 2018-06-14 16:35:46Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | HARVEY GERTEL |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TRUSTEE |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 7814443399 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2018-08-31 |
| 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 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | NEEDHAM |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02494 |
| ReturnHeader/FilingSecurityInformation/AtSubmissionCreationDeviceId | 0 | 76DB6805C95D3F74F856608C28A6FCD9860165CD |
| ReturnHeader/FilingSecurityInformation/AtSubmissionFilingDeviceId | 0 | 5B5102230EDB4B5B0BE56A08D204BCBDA26EA6B8 |
| ReturnHeader/FilingSecurityInformation/FilingLicenseTypeCd | 0 | P |
| ReturnHeader/FilingSecurityInformation/IPAddress/IPv4AddressTxt | 0 | 24.63.195.31 |
| ReturnHeader/FilingSecurityInformation/IPDt | 0 | 2018-09-12 |
| ReturnHeader/FilingSecurityInformation/IPTimezoneCd | 0 | CD |
| ReturnHeader/FilingSecurityInformation/IPTm | 0 | 04:57:39 |
| 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 | 2018-08-31 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | ROY S SCHREIBER CPA |
| ReturnHeader/PreparerPersonGrp/SelfEmployedInd | 0 | X |
| ReturnHeader/ReturnTs | 0 | 2018-09-12T05:57:39-04:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2017-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2018-06-30 |
| ReturnHeader/TaxYr | 0 | 2017 |