| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 681997 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 635246 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE SCHOOL IS BUILT ON TEN DESIGN PRINCIPLES THAT REFLECT THE EDUCATIONAL VALUES AND BELIEFS OF NEW YORK CITY OUTWARD BOUND AND EXPEDITIONARY LEARNING. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 33 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 324 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 192394 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 192751 |
| IRS990/AllOtherContributionsAmt | 0 | 495330 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 31 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 301 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 3137 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 3469 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | GEOFFREY ROEHM |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7186046910 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1580 DEAN STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BROOKLYN |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 11213 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1423889 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 569828 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 39302 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 250370 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 257343 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 547015 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 213433 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 172800 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 151115 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 150000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 24012 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 1319 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 170 VARICK STREET 7TH FLOOR |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 7880 MILESTONE PARKWAY SUITE 425 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | WOBURN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | SAG HARBOR |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | HANOVER |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 01813 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 11963 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 10013 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 21076 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | TRANSCEND |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | LAVINIA GROUP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | ARCHITECTURE RESEARCH OFFICE LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | CSDC PROPERTY CORPORATION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | EDUCATIONAL CONSULTING FOR HS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | EDUCATIONAL CONSULTING FOR HS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | ARCHITECTURE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | OWNER'S REP.SERVICES |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1666771 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 107528 |
| IRS990/CYInvestmentIncomeAmt | 0 | 43555 |
| IRS990/CYOtherExpensesAmt | 0 | 2688052 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 6005106 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -261402 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 5181254 |
| IRS990/CYTotalExpensesAmt | 0 | 7976834 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 75941 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 7715432 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 143895 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 143895 |
| IRS990/Desc | 0 | THE SCHOOL SERVED APPROXIMATELY 257 STUDENTS IN SIXTH THROUGH EIGHTH GRADES LIVING IN BEDFORD-STUYVESANT, CROWN HEIGHTS, AND THE SURROUNDING COMMUNITIES IN BROOKLYN, NY DURING THE 2023-2024 ACADEMIC YEAR. THROUGH ITS PARTNERSHIP WITH NYC OUTWARD BOUND SCHOOLS, THE SCHOOL IS PART OF AN EXPEDITIONARY LEARNING NETWORK OF OVER 160 MEMBER SCHOOLS NATIONWIDE. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 866554 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 229288 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 60 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 6869943 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditPerformedInd | 0 | 1 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 1 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 35250 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 35250 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 51047 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 51047 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 9734 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 194802 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 1172086 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1376622 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 4.00 |
| 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/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| 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/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | 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/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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 28499 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 32827 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 1525 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 25 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 11233 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 14556 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 8570 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 2051 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JONATHAN HARBER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARCIA WARD MITCHELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | NICOLE LEMEROND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | DARRYL HAZELWOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MELANIE DUKES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | KATHERINE LEWANDOWSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | NICOLAS LIRETTE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | CASEY NOEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | ALEX RAPPAPORT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | REBECCA VAN DE SANDE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | GEOFFREY ROEHM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | ALEXIS RUBIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | CAMILLE SCHLAFER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | AMANDA LEAKE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | SHAMIKAH KENLOCK-NIKIEMA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | BRANDI ROBINSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | EVAN KILGORE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | MARC KRUGIELKI |
| 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/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 161804 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 144567 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 152670 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 148731 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 144727 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 119255 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 120254 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 124215 |
| 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/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE-CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARRY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | CHIEF OPERATING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | SENIOR DIRECTOR OF FINANCE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | CO-HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | CO-HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR OF SPECIAL POPULATION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TEACHER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | TEACHER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2010 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 1171441 |
| IRS990/GrantAmt | 0 | 107528 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 107528 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 107528 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 7715432 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 11 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartVInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 597 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 5789 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 191131 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 197517 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 57451 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 57451 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 43555 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 43555 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 39 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 1734143 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 339785 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 494241 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 2228384 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| 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 PREPARE STUDENTS TO THRIVE IN COLLEGE AND CAREERS BY PROVIDING A PUBLIC EDUCATION ROOTED IN ACTIVE LEARNING EXPERIENCES AND POWERFUL CHARACTER DEVELOPMENT. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3229465 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2964110 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2362911 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2734822 |
| IRS990/NoncashContributionsAmt | 0 | 75485 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 672 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 8090 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 96093 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 104855 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -3953 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 1643 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 35698 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 419979 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 457320 |
| IRS990/OtherExpensesGrp/Desc | 0 | SUPPLIES AND MATERIALS |
| IRS990/OtherExpensesGrp/Desc | 1 | STUDENT SERVICES |
| IRS990/OtherExpensesGrp/Desc | 2 | STAFF DEVELOPMENT |
| IRS990/OtherExpensesGrp/Desc | 3 | REPAIRS AND MAINTENANCE |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 876 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 8499 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 253806 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 139727 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 88772 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 12521 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 253806 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 139727 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 98147 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 12521 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 17679 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 228176 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3483136 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 3728991 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 5084 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 44640 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 355701 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 405425 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 290 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3075 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 39138 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 42503 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 637071 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 1005398 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 146685 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 116205 |
| IRS990/PrincipalOfficerNm | 0 | GEOFFREY ROEHM |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | GOV'T PER-PUPIL REV. |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6005106 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 6005106 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 2021833 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 25829 |
| IRS990/PYOtherExpensesAmt | 0 | 1689418 |
| IRS990/PYOtherRevenueAmt | 0 | 4209 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 5666392 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 832330 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 5196515 |
| IRS990/PYTotalExpensesAmt | 0 | 6885933 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 7718263 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -261402 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 6005106 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1364032 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1413684 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 345119 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 723470 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 1068589 |