| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 7094160 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 5080630 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 618877 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 1054191 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | HIGH TECH HIGH PROVIDES EDUCATION TO STUDENTS THROUGH THE OPERATION OF ITS CHARTER SCHOOLS. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 18142 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 18142 |
| IRS990/AllOtherContributionsAmt | 0 | 153245 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ROBERTA MELGAREJO INTERIM 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/CashNonInterestBearingGrp/BOYAmt | 0 | 6685323 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 170 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 57350 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 275000 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 332350 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 35833 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 35833 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 994392 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 200000 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 200000 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 171050 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1655 BROADWAY UNIT 12 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 39000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | PO BOX 30057 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | PO BOX 515137 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | CHULA VISTA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | SAN FRANCISCO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | OMAHA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | LOS ANGELES |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | NE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 91911 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 94139 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 681031100 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 900515137 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | TOP N CATERING LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | ORRICK HERRINGTON AND SUTCLIFFE LLP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | KUTAK ROCK LLP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | PROCOPIO CORY HARGREAVES & SAVITCH LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | FOOD SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | LEGAL SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | LEGAL SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | LEGAL SERVICES |
| IRS990/ContriRptFundraisingEventAmt | 0 | 3401 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 74296758 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 122896 |
| IRS990/CYOtherExpensesAmt | 0 | 20536551 |
| IRS990/CYOtherRevenueAmt | 0 | 311912 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1940563 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1663613 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 54471965 |
| IRS990/CYTotalExpensesAmt | 0 | 75008516 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 51207 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 76672129 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 185412 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 3716820 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 1777153 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1777153 |
| IRS990/Desc | 0 | OPERATION OF PUBLIC CHARTER SCHOOLS: IN 2020-21, OVER 5,000 STUDENTS ATTENDED HIGH TECH HIGH OPERATED PUBLIC CHARTER SCHOOLS IN GRADES K-12. HIGH TECH HIGH'S STUDENTS GRADUATE WITH 100% OF THE 'A-G' REQUIREMENTS FOR UNIVERSITY OF CALIFORNIA ADMISSION SATISFIED. THIS COMPARES TO ROUGHLY 1/3 OF HIGH SCHOOL STUDENTS THROUGHOUT THE STATE OF CALIFORNIA. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 1 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1124548 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 415638 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 913 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 55451557 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditPerformedInd | 0 | 1 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 1 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 14507 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 14507 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 149659 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 149659 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 1990630 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 3091354 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 5081984 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 35.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 14 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 45.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 45.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 41.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 45.00 |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | 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/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 4 | 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/OfficerInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 7 | 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 | 15969 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 38420 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 39683 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 43069 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 58361 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 32802 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 30181 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 30966 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 30632 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 32737 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 32384 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 27323 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 73698 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 36278 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | GARY JACOBS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | HECTOR PEREZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ALBERT LIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BERNADETTE BACH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ANGELA BASS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | RASHEED MEADOWS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JACKIE CHEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ROBERTA MELGAREJO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JOANNA CLARK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JANIE GRISWOLD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | PATRICK FROST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | AMY BRIGGS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | BEN DALEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | BRETT PETERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | MELISSA DANIELS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | ISAAC JONES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | NICOLE HINOSTRO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | ROBIN RUBENSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | LARRY ROSENSTOCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | AMANDA WYATT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | MARIA HEREDIA |
| 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 | 122986 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 140050 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 167640 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 197932 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 258482 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 154014 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 40083 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 143841 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 141818 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 135314 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 133174 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 130975 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 384764 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 167029 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 161615 |
| 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 | 167411 |
| 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/ReportableCompFromRltdOrgAmt | 18 | 14583 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | PRINCIPAL/CHIEF EXECUTIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | CHIEF FINANCIAL OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | INTERIM CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | CHIEF OPERATIONS OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | CHIEF LEARNING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | GENERAL COUNSEL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | SPECIAL EDUCATION DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | GSE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | SCHOOL DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | LEADERSHIP DEVELOPMENT DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | SCHOOL DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | SCHOOL DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | SCHOOL DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | FORMER CEO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | FORMER CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | FORMER GENERAL COUNSEL |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1999 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 1 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/FundraisingAmt | 0 | 3401 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 0 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GovernmentGrantsAmt | 0 | 73253083 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 76672129 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 118402 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 5 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 37 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 645368 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 645368 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 245365 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 245365 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 104975 |
| IRS990/InterestGrp/TotalAmt | 0 | 104975 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 122896 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 122896 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 39558 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 39558 |
| IRS990/IRPDocumentCnt | 0 | 75 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 14119950 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 30813425 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 29222875 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 43342825 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| 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 | HIGH TECH HIGH'S MISSION IS TO DEVELOP AND SUPPORT INNOVATIVE PUBLIC SCHOOLS WHERE ALL STUDENTS DEVELOP THE ACADEMIC, WORKPLACE AND CITIZENSHIP SKILLS FOR POSTSECONDARY SUCCESS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 32170030 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 33833643 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 2212 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 116190 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 118402 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 31045482 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 33418005 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 6315408 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 6315408 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | -2725 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 95603 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 53967 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 146845 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1199573 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 38505 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 1126455 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 3339243 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 4465698 |
| IRS990/OtherExpensesGrp/Desc | 0 | BOOKS AND SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | CHARTER OVERSIGHT FEES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 53932 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 731332 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 554125 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 4579722 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 5364986 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 554125 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 24556197 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 16157541 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 221000 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | ENERGY INCENTIVE/REBATE |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 193510 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 193510 |
| IRS990/OtherRevenueTotalAmt | 0 | 193510 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 9865984 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 29104541 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 38970525 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PaymentsToAffiliatesGrp/ManagementAndGeneralAmt | 0 | 71500 |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 71500 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 422917 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 1161300 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 1584217 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 2280055 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 6839120 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 9119175 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 10870571 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 18548636 |
| IRS990/PoliciesReferenceChaptersInd | 0 | 1 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 122936 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 122936 |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |