| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 55445 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 64106 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 246560 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 198665 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE LITTLE SCHOOL PROVIDES AN ENRICHING EDUCATIONAL AND CHILDCARE PROGRAM FOR OVER 100CHILDREN AGED BETWEEN 2 AND 6 YEARS FROM SEPTEMBER TO JULY. |
| IRS990/AllOtherContributionsAmt | 0 | 1091931 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | MATT LINDEN EXECUTIVE DIRECTOR |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4155670430 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1520 LYON ST |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SAN FRANCISCO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94115 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 331 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 142 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 2767 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 6721 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 148642 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 158130 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 404 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 1414 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 18376 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 20194 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContriRptFundraisingEventAmt | 0 | 231311 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1569192 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 285811 |
| IRS990/CYInvestmentIncomeAmt | 0 | 472 |
| IRS990/CYOtherExpensesAmt | 0 | 849199 |
| IRS990/CYOtherRevenueAmt | 0 | 14551 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2000838 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 340392 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2109651 |
| IRS990/CYTotalExpensesAmt | 0 | 3244661 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 57780 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 3585053 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 812001 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 782364 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 5162 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 18068 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 234880 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 258110 |
| IRS990/Desc | 0 | PROVIDING AN ENRICHING EDUCATIONAL AND CHILDCARE PROGRAM FOR CHILDREN AGED BETWEEN 2 AND 6 YEARS FROM SEPTEMBER TO JULY. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | THE LITTLE SCHOOL |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 48 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 2949693 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 380 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1330 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 17290 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 19000 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 148 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 518 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 6729 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 7395 |
| IRS990/FeesForServicesManagementGrp/FundraisingAmt | 0 | 785 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 2748 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 35727 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 39260 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 748 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 2616 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 34010 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 37374 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 7.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 7.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 7.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 7.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | 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/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 8100 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | AARON BELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ABBY ANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ADRIANA VERMUT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ASHLEY KOCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | CATHY SCHEMBER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | CHARMAINE PATTISON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | HOLLY TELISKA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JOSH OLSHANSKY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JULIE MEYER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | LAELA STURDY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | LIESL HARTMANN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MATTHEW RECTOR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MICHAEL SIMMONS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | MOLLY WOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | PAT ROBERTSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | TRACY RHODES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | VIVIAN CHANG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | MATT LINDEN |
| 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/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 87051 |
| 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/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE-PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | PAST BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | MEMBER-AT-LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 0 |
| IRS990/FormationYr | 0 | 1990 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 231311 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 19326 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 23250 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 18 |
| IRS990/GovernmentGrantsAmt | 0 | 245950 |
| IRS990/GrantAmt | 0 | 285811 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 285811 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 285811 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 3604379 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 18 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 425 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 1488 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 19343 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 21256 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 323 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1132 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 14710 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 16165 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 793 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 2777 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 36103 |
| IRS990/InterestGrp/TotalAmt | 0 | 39673 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 472 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 472 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 2571446 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 2702736 |
| IRS990/IRPDocumentCnt | 0 | 18 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 876259 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 6519995 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 6261885 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 7138144 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| 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 LITTLE SCHOOL IS A PRIVATE NON-PROFIT PRESCHOOL FOUNDED TO PROVIDE YOUNG CHILDREN IN SAN FRANCISCO WITH A DEVELOPMENTAL, CHILD-CENTERED PRESCHOOL EXPERIENCE. THE LITTLE SCHOOL IS COMMITTED TO PROVIDING INDIVIDUALIZED QUALITY ATTENTION TO CHILDREN, PARENTS, AND STAFF. AS AN INSTITUTION, WE ARE COMMITTED TO HELPING EACH SEGMENT OF OUR COMMUNITY GROW IN THEIR ABILITY TO COMMUNICATE AND RESPECT ONE ANOTHER. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 1150000 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 443478 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 9488127 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 10083044 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 3924 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 3924 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 254525 |
| IRS990/NoncashContributionsAmt | 0 | 3034 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 2930 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 10254 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 133305 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 146489 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 874 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3059 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 39764 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 43697 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 400 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 400 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 4664 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 16477 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 211060 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 232201 |
| IRS990/OtherExpensesGrp/Desc | 0 | PFA REBATES |
| IRS990/OtherExpensesGrp/Desc | 1 | OTHER EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | INSTRUCTIONAL MATERIALS |
| IRS990/OtherExpensesGrp/Desc | 3 | STUDENT TRANSPORTATION |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1699 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 640 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 274 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 5947 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 34963 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 2239 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 960 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 77308 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 34962 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 29111 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 12483 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 84954 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 69925 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 31990 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 13717 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611110 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISC. INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 10627 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 10627 |
| IRS990/OtherRevenueTotalAmt | 0 | 10627 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 31143 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 111806 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1395357 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1538306 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 2603 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 9110 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 118426 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 130139 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 1018 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3561 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 46296 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 50875 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 2523060 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 2790512 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 32098 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 31053 |
| IRS990/PrincipalOfficerNm | 0 | MATT LINDEN |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION AND FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2000838 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 2000838 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 2480486 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 265883 |
| IRS990/PYInvestmentIncomeAmt | 0 | 431 |
| IRS990/PYOtherExpensesAmt | 0 | 879782 |
| IRS990/PYOtherRevenueAmt | 0 | 13593 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1952490 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1003446 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2297889 |
| IRS990/PYTotalExpensesAmt | 0 | 3443554 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 4447000 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 340392 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 2011465 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 2134743 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 2178111 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |