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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 53723 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO ENHANCE EQUITY BY PROVIDING SCHOLARSHIPS TO LOW INCOME FAMILIES. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 5138 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 857 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 8499 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 14494 |
| IRS990/AllOtherContributionsAmt | 0 | 14873471 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | RACHEL ELGINSMITH |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4159865650 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 475 14TH STREET 290 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | OAKLAND |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94612 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 46726 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 190457 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
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| IRS990/CollectionsOfArtInd | 0 | 0 |
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| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 53000 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 53000 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 404000 |
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| IRS990/CompensationProcessOtherInd | 0 | 0 |
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| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 1730 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 17261 |
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| IRS990/CYInvestmentIncomeAmt | 0 | 705780 |
| IRS990/CYOtherExpensesAmt | 0 | 590330 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1637139 |
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| IRS990/CYTotalExpensesAmt | 0 | 17216390 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 875590 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 15579251 |
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| IRS990/DeductibleNonCashContriInd | 0 | 1 |
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| IRS990/Desc | 0 | THE BASIC FUND (THE FUND) IS A PRIVATELY FUNDED PROGRAM DEDICATED TO BROADENING THE EDUCATIONAL EQUITY BY HELPING LOW-INCOME FAMILIES IN ALAMEDA, CONTRA COSTA, MARIN, NAPA, SAN FRANCISCO, SAN MATEO, SANTA CLARA, SOLANO, AND SONOMA COUNTIES AFFORD THE COST OF TUITION AT PRIVATE OR PAROCHIAL SCHOOLS OF THEIR CHOICE. THE SCHOLARSHIPS ARE OFFERED TO STUDENTS IN PRE-KINDERGARTEN THROUGH EIGHTH GRADE. |
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| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 18132440 |
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| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 23703 |
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| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 34318 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 178641 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 18 | 0.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 19 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 20 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 21 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 22 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 23 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 24 | X |
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| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | RACHEL ELGINSMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CHRISTINE WEISS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JAMES H HERBERT II |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BRIAN GRIGGS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JOHN COUCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JEREMY PETERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JANISHA SABNANI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | RICHARD C BARKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | LAUREL BROWMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | CRYSTAL BRYANT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | JEFFREY G EDWARDS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JONO GRAYSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | JURGEN HUCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | RUPERT H JOHNSON JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | JOHN C KERN JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | JOHN E KERRIGAN JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | TED KRUTTSCHNITT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | RONNIE LOTT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | MARISSA MAR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | MICHAEL MCCARTHY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | TIM RANZETTA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | WILLIAM T RING |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | MARTIN ROMO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | ERIC A SCHWARTZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | WARREN E SPIEKER JR |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHIEF EXECUTIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHIEF ADVANCEMENT OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DEPUTY GENERAL COUNSEL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1997 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | -204 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 23 |
| IRS990/GrantAmt | 0 | 15261255 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 7832457 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 7832457 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 7428798 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 7428798 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 19476 |
| IRS990/GrossReceiptsAmt | 0 | 15598931 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 23 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 22428 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 1848 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 18334 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 42610 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 1541 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 9491 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 2549 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 13581 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 705984 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 705984 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 360000 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 18917489 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 7797260 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 83669 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 41898 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 27412 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 111081 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 19680 |
| 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 | THE BASIC FUND IS A PRIVATELY FUNDED PROGRAM WHOSE MISSION IS TO ADVANCE EDUCATIONAL EQUITY FOR LOW-INCOME FAMILIES BY HELPING OFFSET THE COST OF TUITION AT PRIVATE SCHOOLS IN THE BAY AREA. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 22575742 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 21288198 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | -204 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | -204 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 340795 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2203375 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3155758 |
| IRS990/NoncashContributionsAmt | 0 | 5617201 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 42699 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 7116 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 70617 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 120432 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 24891 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1502 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 13384 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 39777 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 475099 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 355908 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 25169 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 4726 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 72243 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 102138 |
| IRS990/OtherExpensesGrp/Desc | 0 | BAD DEBT EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 1 | PROGRAM COSTS |
| IRS990/OtherExpensesGrp/Desc | 2 | OTHER |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 29545 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 1880 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 713 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 6056 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 3110 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 29545 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 6056 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 5703 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 538222 |