| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 346608 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 202514 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 2866276 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 2768337 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Excelsior offers personalized learning instruction to students from grade 7 to grade 12. The vision and mission of Excelsior is "Preparing students to be successful adults." |
| IRS990/AddressChangeInd | 0 | X |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 0 |
| IRS990/AllAffiliatesIncludedInd | 0 | false |
| IRS990/AllOtherContributionsAmt | 0 | 3605 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 0 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Alicia Anderson |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7602454262 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 15505 Civic Drive |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Victorville |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 92392 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 273395 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 419564 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 692959 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 107431 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 121940 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 151770 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 13002 Marquette Ct |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 1425 W Foothill Blvd 300 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 16350 Mojave Dr |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Victorville |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | Upland |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | Victorville |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 92392 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 91786 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 92395 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | Durham Cleaning Services |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | Mountain Sixth Associates LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | Victor Valley Union High School District |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | cleaning services |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | Ontario Facility Use |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | oversight fees |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 20062978 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 22884 |
| IRS990/CYOtherExpensesAmt | 0 | 7750690 |
| IRS990/CYOtherRevenueAmt | 0 | 53719 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 95710 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -15365 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 12499966 |
| IRS990/CYTotalExpensesAmt | 0 | 20250656 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 20235291 |
| IRS990/DAFExcessBusinessHoldingsInd | 0 | false |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 107682 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 1221257 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1221257 |
| IRS990/Desc | 0 | Excelsior operates a variety of educational programs, predominately a non-classroom-based model. Students, in grades 7-12, are welcome from the surrounding community as well as within the boundaries set by the state. Excelsior seeks to serve those students who will be best educated in an alternative setting, outside the traditional classroom environment, by providing the support and resources uniquely designed for the graduate to achieve his/her life goals. The cooperative team of staff, students and family directs the educational process. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DistributionToDonorInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 219 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/EscrowAccountInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 13066110 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 731973 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 577736 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1309709 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 40.00 |
| 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/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 1 | 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/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 | 20667 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 18641 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 8498 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 13323 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 36068 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 34770 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 32208 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 28700 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 28700 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 14864 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 26911 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 18173 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 29126 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 16301 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Judy Munoz |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Richard Spring |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Kieth Kollmann |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Felix Diaz |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Peter Wright |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Alicia Anderson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | NAVID MCCARTHY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Camren E Jones |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Jamie Lowe |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Stephen Benedict |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Jessar Descalsoto |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Ronnie D Henderson |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | William Flynn |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Melinda Stackelhouse |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 9980 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 9980 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 3550 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 4050 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 201350 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 149937 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 149937 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 111527 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 111527 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 109840 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 109700 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 104552 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 290006 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 147512 |
| 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 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Superintendent |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DEPUTY SUPT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Coordinator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Coordinator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Coordinator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Coordinator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | Coordinator |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | FORMER SUPERINTENDANT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Asst Supt of Student Services |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | false |
| IRS990/FormationYr | 0 | 2008 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | true |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 4 |
| IRS990/GovernmentGrantsAmt | 0 | 20059373 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 20235291 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 4 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 14 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 660771 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 204274 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 865045 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 136060 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 136060 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 93 |
| IRS990/InterestGrp/TotalAmt | 0 | 93 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 22884 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 22884 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 0 |
| IRS990/InvestTaxExemptBondsInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 24 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 5026952 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 35167274 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 35115691 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 40142643 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LicensedMoreThanOneStateInd | 0 | false |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | EEC's mission is "Preparing students to be successful adults." |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 42305195 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 42289830 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1328242 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 8440 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1336682 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 182660 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 27539 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 210199 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OnBehalfOfIssuerInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OrgFiledInLieuOfForm1041Ind | 0 | false |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 88183 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1854280 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1942463 |
| IRS990/OtherExpensesGrp/Desc | 0 | TEXTBOOKS & CLASSROOM SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | Dues and Memberships |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 46949 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 387463 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 3483 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 387463 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 50432 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611710 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 524298 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | E-RATE |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | IPAD INSURANCE |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 36399 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 17320 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 36399 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 17320 |
| IRS990/OtherRevenueTotalAmt | 0 | 53719 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 318751 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 7802442 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 8121193 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/ManagementAndGeneralAmt | 0 | 2002737 |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 2002737 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 49023 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 416619 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 465642 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 37797 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 1239912 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 1277709 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 419820 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 435090 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 711300 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611710 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 611710 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Athletic Event Fees |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Other student programs |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Student Body Activities |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3813 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 51596 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 40301 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 3813 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 51596 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 40301 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 17101526 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 17662 |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 5396432 |
| IRS990/PYOtherRevenueAmt | 0 | 79060 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 111708 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 555616 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 11357908 |
| IRS990/PYTotalExpensesAmt | 0 | 16754340 |
| IRS990/PYTotalRevenueAmt | 0 | 17309956 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -15365 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | true |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 20062978 |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 4306115 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 4173226 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 32829447 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 3999745 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 36829192 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 898697 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 946956 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 1845653 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 20250656 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 390423 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 390423 |