| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 1053463 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 1039394 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 393403 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 363794 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | SEE SCHEDULE O FOR DESCRIPTION OF THE ORGANIZATION'S MISSIONTHE OPPORTUNITY CHARTER SCHOOL'S PRIMARY MISSION IS TO PROVIDE FREE AND PUBLIC SPECIAL EDUCATION SERVICES TO NEW YORK CITY'S STUDENTS WHILE SIMULTANEOUSLY PROVIDING THE HIGHEST QUALITY EDUCATION TO ALL STUDENTS. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 11720 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 11720 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 23440 |
| IRS990/AllOtherContributionsAmt | 0 | 20400 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 1805 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 1805 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | MR LEONARD GOLDBERG CEOHEAD OF SCHOOL |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2128666137 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 240 WEST 113TH ST 4TH FL |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEW YORK |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 10026 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 20654 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 25875 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 15786 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 15786 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 284149 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 315721 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 759 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 8297 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 9056 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 313704 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 172796 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 117000 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 622 THIRD AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | ONE COMMERCE PLAZA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 716 ST NICHOLAS AVE 1 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | ALBANY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | NEW YORK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | NY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 10017 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 12260 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 10031 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | SCHOOL PROFESSIONALS |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | WHITEMAN OSTERMAN & HANNA LP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | SIGMA SYSTEMS GROUP INC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | STAFFING AGENCY |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | LEGAL SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | TECHNOLOGY SERVICES |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 20400 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 5677 |
| IRS990/CYOtherExpensesAmt | 0 | 2476349 |
| IRS990/CYOtherRevenueAmt | 0 | 55562 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 11611939 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -200778 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 9418007 |
| IRS990/CYTotalExpensesAmt | 0 | 11894356 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 123897 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 11693578 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 1 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 842 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 5265 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 249969 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 256076 |
| IRS990/Desc | 0 | SPECIAL EDUCATION:-FOR 2017-18, THE OCS SPECIAL EDUCATION GRADUATION RATE WAS 28% ABOVE THE COMPARISON GROUP AND 31% ABOVE NEW YORK CITY AVERAGES.-FOR 2017-18, OCS STUDENTS IN THE LOWEST THIRD CITYWIDE, MOST OF WHOM ARE SPECIAL EDUCATION STUDENTS, EXCEEDED NEW YORK CITY QUALITY REPORT TARGETS FOR PARTICIPATION IN COLLEGE AND CAREER PREPARATORY COURSES, 4-YEAR COLLEGE READINESS INDEX, AND POSTSECONDARY ENROLLMENT RATE. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 148 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 7001423 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 143029 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 143029 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 88380 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 15507 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 103887 |
| IRS990/FeesForServicesLobbyingGrp/ProgramServicesAmt | 0 | 95625 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 95625 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 102461 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 415410 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 517871 |
| 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 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 55.00 |
| 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/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 67988 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 12697 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 28333 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 27927 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 26482 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 56315 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | TAMARA ADAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | PEGGY CULVER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ALICE CUTLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | TRACY HAMPTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MAXCEL HARDY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ERIC LONDON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PHILIP PALLONE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JON SICHEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JUNE SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MELBA WILSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | ROBERT ZELLNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | LEONARD GOLDBERG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | JONATHAN DESTINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | MARSHA DOMMEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | ALISON JENSEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | JESSICA MARCU |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | EMILY SAMUELS |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 234026 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 121908 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 149618 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 163522 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 159028 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 159841 |
| 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/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE (THRU 10/31/17) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE (THRU 7/20/17) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE (FROM 9/14/17) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | SEC/TREAS/CHAIR (THRU 6/14/18) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | CEO/HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | MS ASST. PRINCIPAL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR OF STUDENT SUPPORT SERVICES |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR OF STAFF DEVELOPMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | HS PRINCIPAL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | ASST. HEAD OF SCHOOL |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2004 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 11693578 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 16 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1351 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 8453 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 107196 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 117000 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 121055 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 3318 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 124373 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 21 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 134 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 1694 |
| IRS990/InterestGrp/TotalAmt | 0 | 1849 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 5677 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 5677 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 24 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2198674 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 458293 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 439605 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 2638279 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 1 |
| 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 | AT OPPORTUNITY CHARTER SCHOOL, WE WELCOME ALL STUDENTS IN GRADES 6 THROUGH 12, REGARDLESS OF PREVIOUS ACADEMIC SUCCESS: STUDENTS WHO ARE YEARNING TO LEARN, STUDENTS WHO HAVE FALLEN BEHIND, STUDENTS WHO HAVE BEEN TOLD THEIR ASPIRATIONS ARE BEYOND REACH.THROUGH A POSITIVE BELIEF IN EVERY STUDENT'S PROMISE, WE ARE COMMITTED TO BRINGING THEIR POTENTIAL TO LIFE.WE PROVIDE STAFF AND STUDENTS WITH A SAFE, SUPPORTIVE ENVIRONMENT IN WHICH TO PURSUE PERSONAL DEVELOPMENT THROUGH AN INDIVIDUALIZED PLAN TAILORED TO THEIR UNIQUE NEEDS.WE NURTURE INTELLECTUAL AND PERSONAL GROWTH. STUDENTS RECEIVE DIFFERENTIATED INSTRUCTION IN EVERY CURRICULAR AREA FROM OUR HIGHLY-TRAINED STAFF, WITH THE GOAL OF EXPANDING THEIR HIGHER COGNITIVE FUNCTIONING.OUR SCHOOL CULTURE IS PERFORMANCE-DRIVEN AND RESULTS-ORIENTED. STUDENTS GRADUATE HAVING ACHIEVED A CLEARLY DEMONSTRATED ACADEMIC AND SOCIAL FOUNDATION, AS WELL AS A DEEP UNDERSTANDING OF THEIR OWN STRENGTHS AND WEAKNESSES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2292358 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2091580 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 29640 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 823 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 120703 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 117572 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 239098 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 435 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 48756 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 270258 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 319449 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 6713 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 54923 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 667584 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 729220 |
| IRS990/OtherExpensesGrp/Desc | 0 | TEXTS & INSTRUCTIONAL M |
| IRS990/OtherExpensesGrp/Desc | 1 | PROFESSIONAL DEVELOPMEN |
| IRS990/OtherExpensesGrp/Desc | 2 | STUDENT & TEACHER RECRU |
| IRS990/OtherExpensesGrp/Desc | 3 | BAD DEBT EXPENSE |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 6237 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 15002 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 260350 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 143897 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 98305 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 260350 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 143897 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 104542 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 15002 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 227991 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 57379 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 55562 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 55562 |
| IRS990/OtherRevenueTotalAmt | 0 | 55562 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 70000 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 501912 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 6300312 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 6872224 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 8403 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 52589 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 666892 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 727884 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 7803 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 56494 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 708661 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 772958 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 206120 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 243984 |
| IRS990/PrincipalOfficerNm | 0 | MR LEONARD GOLDBERG |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PER PUPIL FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | GOVERNMENT GRANTS |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 11006081 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 605858 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 11006081 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 605858 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | HIGH SCHOOL:-IN 2017-18, OCS EXCEEDED NEW YORK CITY QUALITY REPORT TARGETS FOR FOUR-YEAR GRADUATION RATES BY A WIDE MARGIN, SCORING 23% HIGHER THAN THE COMPARISON GROUP AND 22% HIGHER THAN THE CITY AVERAGE.-IN 2017-18, OCS EXCEEDED NEW YORK CITY QUALITY REPORT TARGETS FOR 4-YEAR HIGH SCHOOL PERSISTENCE RATE, SCORING 16% HIGHER THAN THE COMPARISON GROUP AND 13% HIGHER THAN THE CITY AVERAGE.-IN 2017-18, OCS EXCEEDED NEW YORK CITY QUALITY REPORT TARGETS FOR THE 4-YEAR COLLEGE READINESS INDEX, THE POST-SECONDARY ENROLLMENT RATE, AND 6-YEAR COLLEGE PERSISTENCE. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 1707689 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 1915970 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | MIDDLE SCHOOL:-IN 2017-18, OCS STUDENTS EXCEEDED THE COMPARISON GROUP PASSING RATE FOR ELA COURSES BY 14% AND FOR SOCIAL STUDIES BY 15%, AS WELL AS EXCEEDING THE NEW YORK CITY QUALITY REPORT TARGET FOR THE ADJUSTED CREDIT ACCUMULATION OF FORMER 8TH GRADERS.-IN 2017-18, OCS MINORITY STUDENTS IN THE LOWEST THIRD CITYWIDE EXCEEDED NEW YORK CITY QUALITY GUIDE GOALS FOR AVERAGE ELA PROFICIENCY. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 1707689 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 1915970 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 19928 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 3662 |
| IRS990/PYOtherExpensesAmt | 0 | 2313369 |
| IRS990/PYOtherRevenueAmt | 0 | 33028 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 11349169 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -389092 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 9481510 |
| IRS990/PYTotalExpensesAmt | 0 | 11794879 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 11405787 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -200778 |
| 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 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 7779999 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 2495342 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 2115095 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleC/DirectContactLegislatorsAmt | 0 | 95625 |
| IRS990ScheduleC/DirectContactLegislatorsInd | 0 | 1 |
| IRS990ScheduleC/GrantsOtherOrganizationsInd | 0 | 0 |
| IRS990ScheduleC/MailingsMembersInd | 0 | 0 |
| IRS990ScheduleC/MediaAdvertisementsInd | 0 | 0 |
| IRS990ScheduleC/NotDescribedSection501c3Ind | 0 | 0 |
| IRS990ScheduleC/OtherActivitiesInd | 0 | 0 |
| IRS990ScheduleC/PaidStaffOrManagementInd | 0 | 0 |