| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 22532 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 16642 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 2936 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | OUR MISSION IS TO PRESERVE THE LEGACY OF HIGHFIELD HALL FOR FUTURE GENERATIONS, TO MAKE IT A WELCOMING HOME FOR CULTURAL AND COMMUNITY LIFE IN FALMOUTH, AND TO INTERPRET ITS ARCHITECTURE, LANDSCAPE AND HISTORY FOR RESIDENTS AND VISITORS OF ALL AGE. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 4658 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 15897 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 20555 |
| IRS990/AllOtherContributionsAmt | 0 | 263214 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 9218 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 23602 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 95702 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 128522 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | NANCY H PORTER |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5084951878 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 56 HIGHFIELD DR |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | FALMOUTH |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02540 |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 117263 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 169757 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 341609 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 36033 |
| IRS990/CYOtherExpensesAmt | 0 | 859485 |
| IRS990/CYOtherRevenueAmt | 0 | 168988 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 129146 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -707324 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 523615 |
| IRS990/CYTotalExpensesAmt | 0 | 1383100 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 129966 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 675776 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | true |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 5200 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 8889 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 267925 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 267925 |
| IRS990/Desc | 0 | THE ORGANIZATION HAS RESTORED AND RETURNED HISTORIC HIGHFIELD HALL TO ITS ORIGINAL SPLENDOR. RESIDENTS OF FALMOUTH AS WELL AS VISTORS HAVE ENJOYED HIGHFIELD HALL AND ITS GROUNDS THROUGHOUT THE YEAR. MANAGEMENT HAS SPONSORED VARIOUS EVENTS SUCH AS CONCERTS, ART SHOWS, KIDS PROGRAMS AND CULINARY ART PROGRAMS. THESE PROGRAMS ARE DIVERSE AND ARE ENJOYED BY THE WHOLE COMMUNITY. THE HALL IS ALSO USED FOR BUSINESS, CHARITABLE, SCIENTIFIC AND EDUCATIONAL PURPOSES. MANAGEMENT CONTINUES TO DEVELOP AND CREATE NEW PROGRAMS TO ATTRACT MORE VISITORS TO HIGHFIELD HALL. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | HIGHFIELD HALL & GARDENS |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 21 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 856715 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 7318 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 7318 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 13425 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 13425 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 5.00 |
| 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/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | NANCY H PORTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | SANDI ABRAMS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ALLISON C MARTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ELLEN ADAMS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JOEL NIMAR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DANA RODIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | MARILYN A FOX |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ROBERT GOLDSBOROUGH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | FREDERIC E GREENMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | LYNNE GOSLEE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | DEBORAH DOUGHERTY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SANDRA M SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | PETER JEFFREY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | BARBARA WOLL JONES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | KATHRYN JOHNSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | POLLY KISIEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | CHARLES R KLOTZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | CAMALA RICHARDSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | JEAN SUTHERLAND |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 0 |
| 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/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1994 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingDirectExpensesAmt | 0 | 12979 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 63814 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 17 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 688755 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 75883 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 17 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1117 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 1117 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 6704 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 8938 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 3441 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 3441 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 20645 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 27527 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 652 |
| IRS990/InterestGrp/TotalAmt | 0 | 652 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 36033 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 36033 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 42 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2636899 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 5742242 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 5528188 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 8165087 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 78395 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | SEE SCHEDULE O |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 7726206 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 7189498 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 50835 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 75883 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 75883 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 184041 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 3189 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 3189 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 19134 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 25512 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 27076 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 10114 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 5282 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 42472 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1768354 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 1462767 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 3167 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 3167 |
| IRS990/OtherExpensesGrp/Desc | 0 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 1 | PROGRAM EXPENSES &SUPPLY |
| IRS990/OtherExpensesGrp/Desc | 2 | BUILDING &GROUNDS- MAINT |
| IRS990/OtherExpensesGrp/Desc | 3 | CONTRACTED SERVICES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 5244 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 10967 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2980 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 10967 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 2960 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 185400 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 39221 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 50032 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 11184 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 185400 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 61155 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 50032 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 5625 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 4525 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | RENTAL REVENUES |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 42270 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 42270 |
| IRS990/OtherRevenueTotalAmt | 0 | 42270 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 58656 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 58656 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 351935 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 469247 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 6400 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 6400 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 38401 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 51201 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 116714 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 41572 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 23218 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 22934 |
| IRS990/PrincipalOfficerNm | 0 | NANCY H PORTER |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 129146 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 129146 |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 251391 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 378600 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 120035 |
| IRS990/PYOtherExpensesAmt | 0 | 857925 |
| IRS990/PYOtherRevenueAmt | 0 | 219651 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 224132 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -384600 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 469093 |
| IRS990/PYTotalExpensesAmt | 0 | 1327018 |
| IRS990/PYTotalRevenueAmt | 0 | 942418 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -707324 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt | 0 | 48507 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt | 0 | 25000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt | 0 | 52195 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus4YearsAmt | 0 | 504331 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 630033 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 341609 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 378599 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 156062 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 287781 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 754495 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 1918546 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearAmt | 0 | 150000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus1YearAmt | 0 | 150000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 150000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 135000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 135000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt | 0 | 720000 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 36033 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 44377 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 54098 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 101466 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 196008 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 431982 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 311113 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 336909 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 242995 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 249837 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 248467 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 1389321 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearAmt | 0 | 25447 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus1YearAmt | 0 | 25251 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus2YearsAmt | 0 | 50614 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus3YearsAmt | 0 | 57769 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus4YearsAmt | 0 | 19511 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 178592 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 36033 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 44377 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 54098 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 101466 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 196008 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 431982 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.09000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.10000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.73710 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.70450 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 3419148 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 73861 |