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| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | MELISSA STEFFEN |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 9142738248 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 884 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | ARMONK |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 105040884 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 39384 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 41217 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | false |
| IRS990EZ/CostOfGoodsSoldAmt | 0 | 22394 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | false |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | -459 |
| IRS990EZ/FiledScheduleAInd | 0 | true |
| IRS990EZ/ForeignFinancialAccountInd | 0 | false |
| IRS990EZ/ForeignOfficeInd | 0 | false |
| IRS990EZ/Form1120PolFiledInd | 0 | false |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 61665 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 63330 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 37575 |
| IRS990EZ/GrossProfitLossSlsOfInvntryAmt | 0 | 10171 |
| IRS990EZ/GrossReceiptsAmt | 0 | 76255 |
| IRS990EZ/GrossSalesOfInventoryAmt | 0 | 32565 |
| IRS990EZ/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/LandAndBuildingsGrp/BOYAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/EOYAmt | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | false |
| IRS990EZ/MembershipDuesAmt | 0 | 6115 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 61665 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 61206 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 61665 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 61206 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 15.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 5.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 15.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 3.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | SUSAN RODEN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | LIZ KAPLAN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | JEN KOSSOY |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | MELISSA STEFFEN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | CO PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | SECRETARY |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | CO PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | TREASURER |
| IRS990EZ/OperateHospitalInd | 0 | false |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | false |
| IRS990EZ/OrganizationHadUBIInd | 0 | false |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 22281 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 22113 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 28598 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | false |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | PROMOTE SCHOOL ATHLETIC SPIRIT |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | HOMECOMING COMMUNITY EVENT SUPPORTING THE BYRAM HILLS HIGH SCHOOL ATHELETIC DEPT AND VARIOUS SPORTS TEAMS |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | CAPITAL PROJECTS FURNISHING TO THE BYRAM HILLS HIGH SCHOOL ATHELETIC FIELD AND FACILITIES |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | COACHES DINNER PRESEASON SPORTS MEETINGS WITH COACHES AND COMMUNITY |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 3 | Other program services |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 18615 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 1500 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 1131 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 3 | 7352 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SchoolOperatingInd | 0 | false |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 25722 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 11853 |
| IRS990EZ/SubjectToProxyTaxInd | 0 | false |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 2124 |
| IRS990EZ/TanningServicesProvidedInd | 0 | false |
| IRS990EZ/TotalExpensesAmt | 0 | 28598 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 28598 |
| IRS990EZ/TotalRevenueAmt | 0 | 28139 |
| IRS990EZ/TransactionWithControlEntInd | 0 | false |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 6115 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 9578 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 12105 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 6625 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 13815 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 48238 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 70140 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 92408 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 61902 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 98942 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 100149 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 423541 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 471779 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 76255 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 101986 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 74007 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 105567 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 113964 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 471779 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 76255 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 101986 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 74007 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 105567 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 113964 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 471779 |
| IRS990ScheduleG/FundraisingEventInformationGrp/Event1Nm | 0 | HALL OF FAME |
| IRS990ScheduleG/FundraisingEventInformationGrp/Event2Nm | 0 | SPORTS BANQU |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | DESCRIPTION AMOUNTSENIOR DAY 920HOMECOMING 18,615SIGNING DAY 303COACHES DINNER 1,131POSTAGE 278ADMINISTRATION 608BANK FEES 11INSURANCE 2,569CAPITAL PROJECTS 1,500END OF SEASON BANQUETS 402MERCHANT ACCOUNT 1,411POST SEASON 850 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | CATEGORY BEGINNING OF YEAR END OF YEARPREPAID EXPENSES 54 60INVENTORY 22,227 22,053 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | CATEGORY BEGINNING OF YEAR END OF YEARACCOUNTS PAYABLE 0 2,124 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | ALL OTHER EXPENSES |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Description of other expenses Part I line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Description of other assets Part II line 24 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Description of total liabilities Part II line 26 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Other program services Part III line 31 |
| ReturnHeader/BuildTS | 0 | 2019-02-21 02:37:17Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | SUSAN RODEN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRES |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 9142738248 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2018-12-14 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | BYRAM HILLS BOBCAT BOOSTERS INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | BYRA |
| ReturnHeader/Filer/EIN | 0 | 743093844 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO BOX 884 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | ARMONK |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | NY |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 105040884 |
| ReturnHeader/FilingSecurityInformation/AtSubmissionCreationDeviceId | 0 | 52584940528902835FC0AA61C34EEB1BEEB5E267 |
| ReturnHeader/FilingSecurityInformation/AtSubmissionFilingDeviceId | 0 | 52584940528902835FC0AA61C34EEB1BEEB5E267 |
| ReturnHeader/FilingSecurityInformation/FederalOriginalSubmissionId | 0 | 13417920190574qcih30 |
| ReturnHeader/FilingSecurityInformation/FederalOriginalSubmissionIdDt | 0 | 2019-02-26 |
| ReturnHeader/FilingSecurityInformation/FilingLicenseTypeCd | 0 | P |
| ReturnHeader/FilingSecurityInformation/IPAddress/IPv4AddressTxt | 0 | 72.89.228.62 |
| ReturnHeader/FilingSecurityInformation/IPDt | 0 | 2019-02-26 |
| ReturnHeader/FilingSecurityInformation/IPTm | 0 | 20:10:16 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 133219044 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Stephen A DAngelo CPA PC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | PO Box 253 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Armonk |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | NY |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 10504 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 9147300115 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2019-01-11 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | STEPHEN A DANGELO |
| ReturnHeader/ReturnTs | 0 | 2019-01-11T14:34:02-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2017-08-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2018-07-31 |
| ReturnHeader/TaxYr | 0 | 2017 |