| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 681437 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 686639 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | HTH LEARNING SUPPORTS THE CHARTER SCHOOLS OPERATED BY HIGH TECH HIGH. |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ROBERTA NORRIS CFO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6198145084 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 2861 WOMBLE ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SAN DIEGO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 92106 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 262457 |
| IRS990/CYInvestmentIncomeAmt | 0 | 201436 |
| IRS990/CYOtherExpensesAmt | 0 | 8018787 |
| IRS990/CYOtherRevenueAmt | 0 | 27403 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 6278716 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -1773689 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 8281244 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 6507555 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 4788031 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 4788031 |
| IRS990/Desc | 0 | PROVIDE FACILITIES FOR PUBLIC CHARTER SCHOOLS OPERATED BY HTH LEARNING'S RELATED ORGANIZATION, HIGH TECH HIGH. HTH LEARNING'S AWARD-WINNING EDUCATIONAL FACILITIES SERVE ITS RELATED ORGANIZATION, HIGH TECH HIGH. THESE FACILITIES ARE MADE AVAILABLE TO OVER 5,200 PUBLIC SCHOOL STUDENTS. HTH LEARNING COLLECTS RENTS FROM EACH OF THE SCHOOLS THAT USE THESE FACILITIES AND, GRANTS FUNDING BACK TO THE SCHOOLS FROM THE RENT PROCEEDS ALLOWING THE SCHOOLS TO REINVEST THOSE DOLLARS DIRECTLY INTO THE CLASSROOM. |
| 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 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 3150415 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 7453 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 7453 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 50004 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 50004 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 13651 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 102948 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 116599 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 8.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 42.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | 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 | 69212 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 41246 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | GARY JACOBS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN CAHALIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JIM MAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ROBERTA NORRIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | PATRICK FROST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JACKIE CHEN |
| 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/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 257730 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 201473 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY/TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | CEO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | GENERAL COUNSEL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | FORMER CFO |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1999 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 1 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 3 |
| IRS990/GrantAmt | 0 | 262457 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 262457 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 262457 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 6507555 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 3 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 39152 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 39152 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 232538 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 2785010 |
| IRS990/InterestGrp/TotalAmt | 0 | 3017548 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 201436 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 201436 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 5001193 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 3462473 |
| IRS990/InvestTaxExemptBondsInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 56252540 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 110787315 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 105999284 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 162251824 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 1 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | HTH LEARNING SUPPORTS THE PURPOSES OF THE CHARTER SCHOOLS OPERATED BY HIGH TECH HIGH. HTH LEARNING MANAGES, ENHANCES, IMPROVES, DISSEMINATES, ADMINISTERS, AND DIRECTS THE HTH MODEL AND ITS USE BY THE HTH SCHOOLS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 53047429 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 51282465 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 8725 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 53047429 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 51282465 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 17526269 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 18495847 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 27403 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 27403 |
| IRS990/OtherRevenueTotalAmt | 0 | 27403 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 2042185 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 1977162 |
| IRS990/PoliciesReferenceChaptersInd | 0 | 1 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 4385945 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 4145157 |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 532000 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | RENTAL INCOME |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6278716 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 6278716 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 226416 |
| IRS990/PYInvestmentIncomeAmt | 0 | 70601 |
| IRS990/PYOtherExpensesAmt | 0 | 8097075 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 6279119 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -1973771 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 8323491 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 6349720 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -1773689 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 1 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 1 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 6278716 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 3557711 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 5406735 |
| 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/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | THE ORGANIZATION IS DIRECTLY MANAGED BY ITS SUPPORTED ORGANZIATION, HIGH TECH HIGH. THE CFO OF HIGH TECH HIGH SERVES AS AN OFFICER OF HTH LEARNING AND OVERSEE MANAGEMENT OF ALL OPERATIONS AND FINANCIAL TRANSACTIONS. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | PART IV, SECTION C, LINE 1: |
| IRS990ScheduleA/MajorityDirTrstSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 330866664 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 262457 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | HIGH TECH HIGH |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType2Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 262457 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 79482146 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 55412887 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 134895033 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 928823 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 839653 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 1768476 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 8281244 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 25588315 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 25588315 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 8725 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 887820 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 17608027 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | CONSTRUCTION IN PROGRESS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | DUE FROM RELATED ENTITIES |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 8725 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 6507555 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | IT IS MANAGEMENT'S BELIEVE THAT THE ORGANIZATION DOES NOT HOLD ANY UNCERTAIN TAX POSITIONS THAT WOULD MATERIALLY IMPACT THE FINANCIAL STATEMENTS. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 105999284 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 18495847 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 8281244 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 6507555 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 6516280 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 8281244 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 262457 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 0 | 501(C)(3) |
| IRS990ScheduleI/RecipientTable/NonCashAssistanceAmt | 0 | 0 |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | SUPPORT HTH SCHOOLS |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | HIGH TECH HIGH |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 330866664 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 2861 WOMBLE ROAD |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | SAN DIEGO |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 92106 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | THE CFO REVIEWS THE CONDITIONS OF THE GRANT TO DETERMINE IF THE FUNDS SHOULD BE RESTRICTED. IF THE DONOR HAS INDICATED THAT THE FUNDS MUST BE DIRECTED TO A PARTICULAR PURPOSE, A RESOURCE CODE IS ASSIGNED TO ALLOW ALL FINANCIAL ACTIVITY RELATED TO THE FUNDS TO BE TRACKED IN THE ACCOUNTING SYSTEM. QUARTERLY, THE CFO REVIEWS THE REPORTED USE OF THE GRANT FUNDS TO DETERMINE IF ANY EXPENSES ARE INCONSISTENT WITH THE GRANT'S PURPOSE. A JOURNAL ENTRY IS PREPARED TO REASSIGN ANY MISAPPROPRIATED EXPENSES TO AN APPROPRIATE RESOURCE. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 2: |
| IRS990ScheduleI/Total501c3OrgCnt | 0 | 1 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 257730 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 1 | 201473 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 62216 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 1 | 31740 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 6996 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 1 | 9506 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | PATRICK FROST |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 1 | JACKIE CHEN |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | GENERAL COUNSEL |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 1 | FORMER CFO |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 0 | 326942 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 1 | 242719 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | 0 |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 0 | THE RELATED ORGANIZATION, HIGH TECH HIGH, USES A COMPENSATION COMMITTEE AND INDEPENDENT COMPENSATION CONSULTANT, AS WELL AS COMPENSATION STUDY. THE BOARD ALSO APPROVES THE WRITTEN EMPLOYMENT CONTRACT. |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 3 |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | 0 |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/BondReferenceCd | 1 | B |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/ProceduresCorrectiveActionInd | 0 | 0 |
| IRS990ScheduleK/ProceduresCorrectiveActionGrp/ProceduresCorrectiveActionInd | 1 | 1 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/BondReferenceCd | 1 | B |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/Form8038TFiledInd | 0 | 1 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/Form8038TFiledInd | 1 | 1 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInGICInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/GrossProceedsInvestedInGICInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/HedgeIdentifiedInBksAndRecInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/HedgeIdentifiedInBksAndRecInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/VariableRateIssueInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/VariableRateIssueInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/WrittenProcToMonitorReqsInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsArbitrageGrp/WrittenProcToMonitorReqsInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondIssuedDt | 0 | 2017-06-21 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondIssuedDt | 1 | 2020-07-01 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondIssuerEIN | 0 | 680280917 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondIssuerEIN | 1 | 680280917 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/BondReferenceCd | 1 | B |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/CUSIPNum | 0 | 13059TEF2 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/DefeasedInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/DefeasedInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/IssuePriceAmt | 0 | 22283500 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/IssuePriceAmt | 1 | 71225000 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/IssuerName/BusinessNameLine1Txt | 0 | CA SCHOOL FINANCE AUTH |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/IssuerName/BusinessNameLine1Txt | 1 | CA SCHOOL FINANCE AUTH |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/OnBehalfOfIssuerInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/PoolFinancingInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/PoolFinancingInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/PurposeDesc | 0 | SERIES 2017 - HTHCV & HTHMA |
| IRS990ScheduleK/TaxExemptBondsIssuesGrp/PurposeDesc | 1 | SERIES 2020 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/AnyLeaseArrangementsInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/AnyLeaseArrangementsInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/AnyResearchAgreementsInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/AnyResearchAgreementsInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/BondIssMeetPrvtSecPymtTestInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/BondIssMeetPrvtSecPymtTestInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/BondReferenceCd | 0 | A |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/BondReferenceCd | 1 | B |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/ChangeInUseBondFinancedPropInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/ChangeInUseBondFinancedPropInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/MgmtContractBondFincdPropInd | 0 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/MgmtContractBondFincdPropInd | 1 | 0 |
| IRS990ScheduleK/TaxExemptBondsPrivateBusUseGrp/OwningBondFinancedPropertyInd | 0 | 0 |