| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 74091 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 82492 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 379749 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 286043 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | +PROVIDING EDUCATIONAL SERVICES TO CHILDREN WITH MOVEMENT DISORDERS SUCH AS CEREBRAL PALSY. |
| IRS990/AllOtherContributionsAmt | 0 | 638600 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 85 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 1607 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 1692 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | THE ORGANIZATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6507779130 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 818 MAHLER ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BURLINGAME |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94010 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 596974 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 481083 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 165515 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 88492 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 254007 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1444667 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 20703 |
| IRS990/CYOtherExpensesAmt | 0 | 374936 |
| IRS990/CYOtherRevenueAmt | 0 | 6775 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 3311159 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1666985 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2741383 |
| IRS990/CYTotalExpensesAmt | 0 | 3116319 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 572 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 4783304 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 12386 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 692 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 13144 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 13836 |
| IRS990/Desc | 0 | PROGRAMS ARE DEDICATED TO PROVIDING EXCEPTIONAL EDUCATIONAL SERVICES TO CHILDREN WITH MOVEMENT DISORDERS SUCH AS CEREBRAL PALSY. IN OUR HIGHLY SKILLED AND NURTURING ENVIRONMENT, WE INTEGRATE ACADEMIC AND MOTOR-SKILL DEVELOPMENT. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 59 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 2861707 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1644 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 31232 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 32876 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 3863 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 14969 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 18832 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 10870 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 6757 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 17627 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 16.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| 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 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| 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/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/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 12565 |
| 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 | 10296 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 10978 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 32017 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | KINGA E CEZGENI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ANN WILSON GREEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | SARA HAWKINSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | LYNETTE MULLINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ANN TRUONG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | WILLIAM WOLF JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | MELANIE HUNTLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JENNIFER PARKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | RUSSELL VERNICK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | BRYAN VU |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | KARLA ALCANTAR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JOANNA HAMLIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | BRENDA HUEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ELIZABETH SCHOELEN |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 164300 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 48000 |
| 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 | 104277 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 113737 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 123786 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 109413 |
| 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/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | CHIEF FINANCIAL OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TEACHER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TEACHER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TEACHER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TEACHER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2004 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 3999 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GovernmentGrantsAmt | 0 | 806067 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1152832 |
| IRS990/GrossReceiptsAmt | 0 | 5932137 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1154 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 21954 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 23108 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 470 |
| IRS990/InterestGrp/TotalAmt | 0 | 470 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 16704 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 16704 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1243768 |
| IRS990/IRPDocumentCnt | 0 | 32 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 80808 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 75357 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 61521 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 142329 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1148833 |
| IRS990/LoanOutstandingInd | 0 | 1 |
| IRS990/LoansFromOfficersDirectorsGrp/BOYAmt | 0 | 11332 |
| 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 AVALON ACADEMY IS A SCHOOL DEDICATED TO PROVIDING EXCEPTIONAL EDUCATIONAL SERVICES TO CHILDREN WITH MOVEMENT DISORDERS SUCH AS CEREBRAL PALSY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 997501 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2669165 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 3999 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 3999 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 4679 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 997501 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2669165 |
| IRS990/NoncashContributionsAmt | 0 | 501370 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 8291 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 157522 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 165813 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 535 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 10979 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 15100 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 26614 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 5775 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 90902 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 16679 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 151375 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 168054 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | LICENSES AND CERTIFICAT |
| IRS990/OtherExpensesGrp/Desc | 2 | MINOR EQUIPMENT AND REP |
| IRS990/OtherExpensesGrp/Desc | 3 | BANK AND MERCHANT FEES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 37 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4675 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 2821 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 2432 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 343 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 37958 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 8220 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 7003 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 6516 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 42633 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 11041 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 9472 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 6859 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611110 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 6775 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 6775 |
| IRS990/OtherRevenueTotalAmt | 0 | 6775 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 14169 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 2064320 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2078489 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 9159 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 172320 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 181479 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 59354 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 59354 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 37455 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 88340 |
| IRS990/PrincipalOfficerNm | 0 | SARA HAWKINSON |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 624110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | THERAPY SERVICES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3261280 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 49879 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 3261280 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 49879 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 212601 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 57 |
| IRS990/PYOtherExpensesAmt | 0 | 392128 |
| IRS990/PYOtherRevenueAmt | 0 | 3045 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2682520 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 80759 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2425336 |
| IRS990/PYTotalExpensesAmt | 0 | 2817464 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 2898223 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 500000 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1666985 |
| 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 | 3311159 |
| 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 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 22437 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 59267 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 81704 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 3116319 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 39084 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 21541 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 60625 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 4679 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 4679 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 4783304 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | ACCOUNTING STANDARDS REQUIRE AN ORGANIZATION TO EVALUATE ITS TAX POSITIONS AND PROVIDE A LIABILITY FOR ANY POSITIONS THAT WOULD NOT BE CONSIDERED 'MORE LIKELY THAN NOT' TO BE UPHELD UNDER A TAX AUTHORITY EXAMINATION. MANAGEMENT HAS EVALUATED ITS TAX POSITIONS AND HAS CONCLUDED THAT A PROVISION FOR A TAX LIABILITY IS NOT NECESSARY AT JUNE 30, 2023. GENERALLY, THE ORGANIZATION'S INFORMATION RETURNS REMAIN OPEN FOR EXAMINATION FOR A PERIOD OF THREE (FEDERAL) OR FOUR (STATE OF CALIFORNIA) YEARS FROM THE DATE OF FILING. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 61521 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 3116319 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 4783304 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 4787983 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 3116319 |
| IRS990ScheduleE/ComplianceWithRevProc7550Ind | 0 | 1 |
| IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceAthltProgInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceEducPlcyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceOtherActyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceSchsInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd | 0 | 0 |
| IRS990ScheduleE/GovernmentFinancialAidRcvdInd | 0 | 0 |
| IRS990ScheduleE/GovernmentFinancialAidRvkdInd | 0 | 0 |
| IRS990ScheduleE/MaintainCpyOfAllSolInd | 0 | 1 |
| IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd | 0 | 1 |
| IRS990ScheduleE/MaintainRacialCompRecsInd | 0 | 1 |
| IRS990ScheduleE/MaintainScholarshipsRecsInd | 0 | 1 |
| IRS990ScheduleE/NondiscriminatoryPolicyStmtInd | 0 | 1 |
| IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd | 0 | 1 |
| IRS990ScheduleE/PolicyStmtInBrochuresEtcInd | 0 | 1 |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 0 | ON AN ANNUAL BASIS, AVALON PUBLISHES ITS STATEMENT OF NON-DISCRIMINATION IN A WIDELY CIRCULATED NEWSPAPER SUCH AS THE SAN FRANCISCO CHRONICLE. |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE E, PART I, LINE 3 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompensationSurveyInd | 0 | X |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/Form990OfOtherOrganizationsInd | 0 | X |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 164300 |