| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 346313 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 250882 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 223 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 11594 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO PROMOTE EXCELSIOR CHARTER SCHOOLS AND TO SUPPORT COMMUNITY EDUCATION. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 121 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 1095 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 1216 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ALICIA ANDERSON CFO |
| 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 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 76046 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 33776 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 236968 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 236968 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 4858 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 43723 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 48581 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2648 |
| IRS990/CYOtherExpensesAmt | 0 | 340978 |
| IRS990/CYOtherRevenueAmt | 0 | 326808 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2247635 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 84283 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2151830 |
| IRS990/CYTotalExpensesAmt | 0 | 2492808 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 2577091 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 9682 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 87140 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 96822 |
| IRS990/Desc | 0 | PROMOTE AND SUPPORT EEC, EXCELSIOR CHARTER SCHOOL |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 34 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 2263626 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 946 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 8510 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 9456 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 7425 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 66828 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 74253 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 17139 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 36000 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LAURA NANCE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | SUZANNE PERCIVAL-PACINI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | NAVID MCCARTHY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ALICIA ANDERSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | STEPHEN BENEDICT |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 1200 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 199768 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 123251 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 2400 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 110355 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | MAINTENANCE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2015 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 3 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 2577091 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 315600 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 2 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 368 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 3316 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 3684 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1012 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 9107 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 10119 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 2648 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 2648 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 303311 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 3310296 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 3213474 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 3516785 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO PROMOTE, SUPPORT, BENEFIT, REPLICATE, AND CARRY OUT THE PURPOSES OF EEC AND EXCELSIOR CHARTER SCHOOLS OR OTHER EDUCATIONAL PROGRAMS AS MAY BE ESTABLISHED TO PROVIDE EDUCATION BASED ON THE EXCELSIOR MODEL; AND TO PROMOTE, SUPPORT, BENEFIT, DEVELOP, OEPRATE OR PROVIDE LEADERSHIP EDUCATION, PROGRAM DEVELOPMENT, RESEARCH AND PROFESSIONAL DEVELOPMENT TO PUBLIC CHARTER SCHOOLS OR OTHER SCHOOLS, YOUTH OR COMMUNITY PROGRAMS, OR OTHER ACTIVITIES THAT EDUCATE AND SERVE STUDENTS, CHILDREN, FAMILIES OR COMMUNITIES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3802005 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 3886288 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 315600 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 315600 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 3739 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 33653 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 37392 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 964 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 8682 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 9646 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 35654 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 320888 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 356542 |
| IRS990/OtherExpensesGrp/Desc | 0 | MATERIALS & SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | DUES & SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 4513 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 468 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 40618 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 4210 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 45131 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 4678 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 611110 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 11208 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 11208 |
| IRS990/OtherRevenueTotalAmt | 0 | 11208 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 126737 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1140630 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1267367 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 15581 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 140229 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 155810 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 17114 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 118029 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 135143 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 36596 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 12651 |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 561000 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | MANAGEMENT & SERVICE F |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2247635 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 2247635 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 1569875 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1609 |
| IRS990/PYOtherExpensesAmt | 0 | 369198 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2554506 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1962730 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1794062 |
| IRS990/PYTotalExpensesAmt | 0 | 2163260 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 4125990 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 84283 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 315600 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 2247636 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 725157 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 865675 |
| 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/MajorityDirTrstSupportedOrgInd | 0 | 1 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 800274093 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 2 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | EEC DBA EXCELSIOR CHARTER SCHOOL |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType2Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 0 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 2468615 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 288063 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 2756678 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 46300 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 15248 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 61548 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 698559 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 698559 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 3213474 |
| 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/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 199768 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 36000 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | ALICIA ANDERSON |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | CFO |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 235768 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | 0 |
| IRS990ScheduleJ/SupplementalInformationDetail/ExplanationTxt | 0 | EEC, THE RELATED ORGANIZATION, USES WRITTEN EMPLOYMENT CONTRACTS AND APPROVAL BY THE BOARD FOR METHODS TO DETERMINE COMPENSATION OF EXECUTIVE OFFICERS. |
| IRS990ScheduleJ/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART I, LINE 3 |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | 0 |
| IRS990ScheduleJ/WrittenEmploymentContractInd | 0 | X |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | CPA FIRM WILL FORWARD A DRAFT COPY OF THE 990 TAX RETURN TO THE CHIEF FINANCIAL OFFICER (CFO). THE CFO DISTRIBUTES IT TO THE BOARD OF DIRECTORS. ONCE APPROVED, THE CPA FIRM WILL FILE THE RETURN ON THE ORGANIZATION'S BEHALF. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | BOARD MEMBERS AND MANAGEMENT ARE REQUIRED TO DISCLOSE ANNUALLY INTERESTS THAT COULD GIVE RISE TO CONFLICTS. STATEMENTS ARE REVIEWED ANNUALLY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THERE IS A REVIEW AND APPROVAL BY INDEPENDENT PERSONS. REVIEW OF LOCAL SALARY COMPARABLE DATA, INCLUDING APPROVAL BY MANAGEMENT, THE BOARD OF DIRECTORS, ETC. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | GOVERNING DOCUMENTS, TAX FORMS AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PART VI, SECTION B, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PART VI, SECTION B, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART VI, SECTION B, LINE 15 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990ScheduleR/AssetExchangeInd | 0 | 0 |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | EEC DBA EXCELSIOR CHARTER SCHOOLS |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 0 | 800274093 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 0 | 501(C)(3) |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/LegalDomicileStateCd | 0 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PrimaryActivitiesTxt | 0 | OPERATE A PUBLIC CHARTER SCHOOL |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PublicCharityStatusTxt | 0 | LINE 2 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/AddressLine1Txt | 0 | 15505 CIVIC DRIVE |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/CityNm | 0 | VICTORVILLE |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 0 | 92392 |
| IRS990ScheduleR/LoansOrGuaranteesFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/LoansOrGuaranteesToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PaidEmployeesSharingInd | 0 | 1 |
| IRS990ScheduleR/PerformOfServicesByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesForOthOrgInd | 0 | 1 |
| IRS990ScheduleR/ReceiptOfIntAnntsRntsRyltsInd | 0 | 0 |
| IRS990ScheduleR/ReimbursementPaidByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/ReimbursementPaidToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/RentalOfFacilitiesToOthOrgInd | 0 | 1 |
| IRS990ScheduleR/RentalOfFcltsFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/SharingOfFacilitiesInd | 0 | 0 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/InvolvedAmt | 0 | 2247636 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/InvolvedAmt | 1 | 315600 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/OtherOrganizationName/BusinessNameLine1Txt | 0 | EEC DBA EXCELSIOR CHARTER SCHOOLS |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/OtherOrganizationName/BusinessNameLine1Txt | 1 | EEC DBA EXCELSIOR CHARTER SCHOOLS |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/TransactionTypeTxt | 0 | L |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/TransactionTypeTxt | 1 | J |
| IRS990ScheduleR/TransferFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/TransferToOtherOrgInd | 0 | 0 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TempOrPermanentEndowmentsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
| IRS990/TotalAssetsBOYAmt | 0 | 4148318 |
| IRS990/TotalAssetsEOYAmt | 0 | 4137170 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 4148318 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 4137170 |
| IRS990/TotalCompGreaterThan150KInd | 0 | 1 |
| IRS990/TotalEmployeeCnt | 0 | 34 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 229182 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 2263626 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 2492808 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 346313 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 250882 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 346313 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 250882 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 3802005 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 3886288 |
| IRS990/TotalOtherCompensationAmt | 0 | 53139 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 2263626 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 2247635 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 324219 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 2648 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2574443 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 2577091 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 4148318 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 4137170 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 112755 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |