| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 482213 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 496853 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 21613 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 15970 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | OPERATE A FREE PUBLIC CHARTER HIGH SCHOOL IN BROOKLYN, NEW YORK. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 495 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 4624 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 64545 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 69664 |
| IRS990/AllOtherContributionsAmt | 0 | 88631 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | ARTHUR SAMUELS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 7182827426 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 231 PALMETTO STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BROOKLYN |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 11221 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 2078554 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 2448516 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 3242 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 30282 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 380900 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 414424 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 14 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 1776 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 1791 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 210784 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 149500 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 129 20TH STREET STE 2 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 237 WEST 35TH STREET STE 301 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | BROOKLYN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 11232 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 10001 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CHARTER TECHNOLOGY SOLUTIONS LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | CHARTER SCHOOL BUSINESS MANAGEMENT INC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | TECHNOLOGY SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | FINANCIAL MANAGEMENT SERVICES |
| IRS990/ContriRptFundraisingEventAmt | 0 | 25755 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 480392 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1020 |
| IRS990/CYOtherExpensesAmt | 0 | 1730945 |
| IRS990/CYOtherRevenueAmt | 0 | -178 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 8183884 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 172247 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 6761926 |
| IRS990/CYTotalExpensesAmt | 0 | 8492871 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 73062 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 8665118 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 1813 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 16937 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 212168 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 230918 |
| IRS990/Desc | 0 | TO EQUIP STUDENTS WITH THE ACADEMIC SKILLS AND THE ABILITY TO SUCCEED IN LIFE AND IN COLLEGE. FOR THE 2018-2019 SCHOOL YEAR, MATH, ENGINEERING, AND SCIENCE ACADEMY (MESA) CHARTER HIGH SCHOOL SERVED APPROXIMATELY 465 STUDENTS IN THE NINTH THROUGH TWELFTH GRADES. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 101 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 7633223 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 25500 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 25500 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 146 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 1369 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 17144 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 18659 |
| IRS990/FeesForServicesManagementGrp/FundraisingAmt | 0 | 2318 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 97420 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 52736 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 152474 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 2665 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 110330 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 65437 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 178432 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| 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/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | 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 | 38396 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 19011 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 17813 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 3774 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 14174 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MAUREEN RYAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ANGEL CORTES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | CHET MANCINI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CHRISTIAN MONTOYA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JEREMY LIPSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | EVE COLAVITO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | KYM WARD GAFFNEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ADRIA MARTIG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JACQUES PIERRE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | RAUL RUBIO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | ARTHUR SAMUELS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | PAGEE CHEUNG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | PRINCESS FRANCOIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | TRACI DOUGLAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | CASSANDRA GREENE |
| 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 | 171570 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 174736 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 119439 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 111878 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 101278 |
| 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/TitleTxt | 0 | BOARD CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TREASURER UNTIL 6.30.19 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE, TREASURER FROM 6.30.19 |
| 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 | PRINCIPAL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | ASSISTANT PRINCIPAL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR OF EXTERNAL AFFAIRS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR OF HUMANITIES |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2012 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 25755 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 3091 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 366006 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 8668209 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1219 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 11394 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 149485 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 162098 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 454 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 4245 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 53166 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 57865 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1020 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1020 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 24 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 930954 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 332635 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 443125 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1374079 |
| 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 | THE SCHOOL PROVIDES A RIGOROUS EDUCATION THAT EQUIPS EACH STUDENT WITH THE ABILITY TO SUCCEED IN LIFE AND IN COLLEGE. STUDENTS WILL DEVELOP A PASSION FOR SCIENCE, TECHNOLOGY, ENGINEERING AND MATHEMATICS AND, THROUGH AN INTENSIVE COLLEGE READINESS PROGRAM, DEVELOP CRITICAL THINKING AND SELF-ADVOCACY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2463609 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2635856 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -3091 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -3091 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 27566 |
| IRS990/NoncashContributionsAmt | 0 | 49843 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 722 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 6034 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 93004 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 99760 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 232 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 5686 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 53120 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 665401 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 724207 |
| IRS990/OtherExpensesGrp/Desc | 0 | STUDENT SERVICES |
| IRS990/OtherExpensesGrp/Desc | 1 | STUDENT SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 2 | PROF. DEVELOPMENT |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES & SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 259 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 191 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 9859 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 7 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2416 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 1787 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 10159 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 60 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 309995 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 229263 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 154088 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 7894 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 312670 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 231241 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 174106 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 7961 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | BANK REBATES |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 2913 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 2913 |
| IRS990/OtherRevenueTotalAmt | 0 | 2913 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 39555 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 369509 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 4650815 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 5059879 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 3529 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 32969 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 412977 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 449475 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 895 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 8357 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 104689 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 113941 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 363819 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 88794 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 73662 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 60091 |
| IRS990/PrincipalOfficerNm | 0 | ARTHUR SAMUELS |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | GOV'T PER-PUPIL REV. |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 8183884 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 8183884 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 458939 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 332 |
| IRS990/PYOtherExpensesAmt | 0 | 1608772 |
| IRS990/PYOtherRevenueAmt | 0 | -5777 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 7738165 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 280119 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 6302768 |
| IRS990/PYTotalExpensesAmt | 0 | 7911540 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 8191659 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 172247 |
| 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 | 8183884 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 75307 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 76213 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 1449 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 1449 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 253348 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 359892 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 613240 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 4540 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 8492871 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 11049 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 143290 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 154339 |
| IRS990ScheduleD/OtherExpensesIncludedAmt | 0 | 3091 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 178728 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 427772 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 606500 |
| IRS990ScheduleD/OtherRevenueAmt | 0 | 3091 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 4540 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 8665118 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE SCHOOL RECOGNIZES THE EFFECT OF INCOME TAX POSITIONS ONLY IF THOSE POSITIONS ARE MORE LIKELY THAN NOT TO BE SUSTAINED. MANAGEMENT HAS DETERMINED THAT THE SCHOOL HAD NO UNCERTAIN TAX POSITIONS THAT WOULD REQUIRE FINANCIAL STATEMENT RECOGNITION OR DISCLOSURE. THE SCHOOL IS NO LONGER SUBJECT TO EXAMINATIONS BY THE APPLICABLE TAXING JURISDICTIONS FOR YEARS PRIOR TO JUNE 30, 2016. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | SPECIAL EVENT EXPENSES 3,091. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 2 | SPECIAL EVENT EXPENSES 3,091. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |