Liabilities / Assets
61st percentile
Higher debt load relative to assets than 61% of similar nonprofits.
EIN 23-7131696 • 501(c)3 • Southborough, MA
Profile
Study, collect, preserve, and house historical records
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
61st percentile
Higher debt load relative to assets than 61% of similar nonprofits.
Liabilities / Revenue
99th percentile
Higher debt load relative to revenue than 99% of similar nonprofits.
Net Margin
2nd percentile
Higher net margin than 2% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
71st percentile
Faster asset growth than 71% of similar nonprofits.
Revenue Growth
1st percentile
Faster revenue growth than 1% of similar nonprofits.
Assets
Up$2,293,071
Up $488,545 (+27%) from 2023
Liabilities
Up$321,328
Up $305,702 (+1956%) from 2023
Net Assets
Up$1,971,743
Up $182,843 (+10%) from 2023
Revenue
Down$13,128
Down $1,794,998 (-99%) from 2023
Expenses
Up$39,639
Up $8,583 (+28%) from 2023
Net Income
Down-$26,511
Down $1,803,581 (-101%) from 2023
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
| Balance Sheet | Operations | |||||
|---|---|---|---|---|---|---|
| Year | Assets | Liabilities | Net Assets | Revenue | Expenses | Net Income |
| 2025Detailed filing. Detailed filing data is available for this year. | $2.29 | $0.32 | $1.97 | $0.01 | $0.04 | $0.03 |
| 2023XML pending. An XML filing is linked for this year, but detailed extraction is still pending. | $1.80 | $0.02 | $1.79 | $1.81 | $0.03 | $1.78 |
Study, collect, preserve, and house historical records
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $99,740 | $10,965 | ▼ $88,775 |
| Total Assets | $2,017,554 | $2,293,071 | ▲ $275,517 |
| Other Assets Total | $1,917,814 | $2,282,106 | ▲ $364,292 |
| Liabilities | |||
| Mortgage Notes Payable Secured by Investment Property | - | $307,082 | - |
| Accounts Payable and Accrued Expenses | $19,300 | $14,246 | ▼ $5,054 |
| Total Liabilities | $19,300 | $321,328 | ▲ $302,028 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,998,254 | $1,971,743 | ▼ $26,511 |
| Net Assets With Donor Restrictions | $0 | $0 | → $0 |
| Total Net Assets Fund Balance | $1,998,254 | $1,971,743 | ▼ $26,511 |
| Total Liabilities and Net Assets / Fund Balance | $2,017,554 | $2,293,071 | ▲ $275,517 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Assets Org | $1,256 | - | - |
| Name | Title |
|---|---|
| Michael Weishan | President and Treasuer |
| Jon Delli Priscoli | Board Member |
| Mathew Young | Board Member |
| Rebecca Deans Rowe | Board Member |
| Amy Rosenberg | Clerk |
| Line Item | Amount |
|---|---|
| Other Expenses | $39,639 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Fees for Services Management | $35,748 | $0 | $0 | $35,748 |
| Fees for Services Legal | $3,283 | $0 | $0 | $3,283 |
| Office Expenses | $336 | $0 | $0 | $336 |
| Occupancy | $167 | $0 | $0 | $167 |
| Other Expenses | $105 | $0 | $0 | $105 |
| Total Functional Expenses | $39,639 | $0 | $0 | $39,639 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Interested Party | Relationship | Description | Shared Revenue | Amount |
|---|---|---|---|---|
| - | Owner | Provide Management Services | No | $89,371 |
“NONE”
“NONE”
“COLLECTIONS, WHICH ARE ACQUIRED THROPUGH PURCHASE AND CONTRIBUTION SINCE THE ORGANIZATIONS INCEPTION, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENT OF FINANCIAL POSITION. pURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN NET ASSETS WITHOUT DONOR RESTRICTIONS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED, OR AS DECREASES IN NET ASSETS WITH DONOR RESTRICTIONS IF YHE ASSETS USED TO PURCHASE THE ITEMS WERE RESTRICTED ON THE FINANCIAL STATEMENTS. PROCEEDS FROM DEACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN THE APPROPRIATE NET ASSET CLASSES.”
“The organization has acquired a collection of historical records and antiquities relating to the history of southborough, massachusetts and its profilke. The collections are preserved to educate furure generations about the history of southborough, massachusetts.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 14246 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | STUDY, COLLECT, PRESERVE, AND HOUSE HISTORICAL RECORDS |
| IRS990/AllOtherContributionsAmt | 0 | 13128 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | MICHAEL D WEISHAN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5086247640 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 25 COMMON STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SOUTHBOROUGH |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 01772 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | true |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 99740 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 10965 |
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| IRS990/CollectionsOfArtInd | 0 | true |
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| IRS990/CreditCounselingInd | 0 | false |
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| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
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| IRS990/CYTotalRevenueAmt | 0 | 13128 |
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| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | CONTINUING RECONSTRUCTION OF THE BUILDING AND CARRYING OUT ITS PRMARY MISSION OF ASTUDY, COLLECT, PRESERVE AHD HOUSE HISTORICAL RECORDS. |
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| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 3283 |
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| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 35748 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 0 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 15.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MATHEW YOUNG |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | CLERK |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD MEMBER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1965 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 6 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 13128 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 6 |
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| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
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| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | STUDY, COLLECT, PRESERVE, AND HOUSE HISTORICAL RECORDS |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
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| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1998254 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1971743 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
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| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1971743 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 0 |
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| IRS990/OccupancyGrp/TotalAmt | 0 | 167 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 0 |
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| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 336 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
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| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 2282106 |
| IRS990/OtherExpensesGrp/Desc | 0 | MISC |
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| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
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| IRS990/OtherExpensesGrp/TotalAmt | 0 | 105 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | MICHAEL D WEISHAN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 226076 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 1214 |
| IRS990/PYInvestmentIncomeAmt | 0 | 8808 |
| IRS990/PYOtherExpensesAmt | 0 | 14742 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 215330 |
| IRS990/PYTotalExpensesAmt | 0 | 19554 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 3598 |
| IRS990/PYTotalRevenueAmt | 0 | 234884 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
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| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 13128 |
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| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
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| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 851 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 12269 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 12461 |
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| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 1800019 |
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| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 10 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 2054804 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 13128 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 216076 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1800870 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 12269 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 12461 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 2054804 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 2054814 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/CollectionUsedPreservationInd | 0 | X |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 2280850 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 1 | 1256 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | CONSTRUCTION IN PROGRESS |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 1 | COLLECTIBLES |
| IRS990ScheduleD/SolicitedAssetsSaleInd | 0 | false |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | COLLECTIONS, WHICH ARE ACQUIRED THROPUGH PURCHASE AND CONTRIBUTION SINCE THE ORGANIZATIONS INCEPTION, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENT OF FINANCIAL POSITION. pURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN NET ASSETS WITHOUT DONOR RESTRICTIONS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED, OR AS DECREASES IN NET ASSETS WITH DONOR RESTRICTIONS IF YHE ASSETS USED TO PURCHASE THE ITEMS WERE RESTRICTED ON THE FINANCIAL STATEMENTS. PROCEEDS FROM DEACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN THE APPROPRIATE NET ASSET CLASSES. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | THE ORGANIZATION HAS ACQUIRED A COLLECTION OF HISTORICAL RECORDS AND ANTIQUITIES RELATING TO THE HISTORY OF SOUTHBOROUGH, MASSACHUSETTS AND ITS PROFILKE. THE COLLECTIONS ARE PRESERVED TO EDUCATE FURURE GENERATIONS ABOUT THE HISTORY OF SOUTHBOROUGH, MASSACHUSETTS. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Pt III, Line 1a |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Pt III, Line 4 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 2282106 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/NameOfInterested/BusinessName/BusinessNameLine1Txt | 0 | MDW GROUP LTD |
| IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/RelationshipDescriptionTxt | 0 | OWNER |
| IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/SharingOfRevenuesInd | 0 | false |
| IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/TransactionAmt | 0 | 89371 |
| IRS990ScheduleL/BusTrInvolveInterestedPrsnGrp/TransactionDesc | 0 | PROVIDE MANAGEMENT SERVICES |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | NONE |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | NONE |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Pt VI, Line 2 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Pt VI, Line 11b |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 2017554 |
| IRS990/TotalAssetsEOYAmt | 0 | 2293071 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 2017554 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 2293071 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 13128 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 39639 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 39639 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 19300 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 321328 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 19300 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 321328 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 1998254 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1971743 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 39639 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 13128 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 3 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 2017554 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 2293071 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 189 CORDAVILLE RD |
| IRS990/USAddress/CityNm | 0 | SOUTHBOROUGH |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 01772 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 6 |
| IRS990/VotingMembersIndependentCnt | 0 | 6 |
| IRS990/WebsiteAddressTxt | 0 | N/A |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | MICHAEL D WEISHAN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 5085247540 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-10-24 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | THE SOUTHBOROUGH HISTORICAL SOCIETYINC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | SOUT |
| ReturnHeader/Filer/EIN | 0 | 237131696 |
| ReturnHeader/Filer/PhoneNum | 0 | 5085247540 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 25 COMMON STREET |
| ReturnHeader/Filer/USAddress/CityNm | 0 | SOUTHBOROUGH |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 01772 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 200910129 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Richard H Snow CPA PC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 95 Cleveland Street |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | West Newton |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 02465 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 6172199812 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-10-27 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | RICHARD H SNOW |
| ReturnHeader/ReturnTs | 0 | 2025-10-26T15:04:37-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-05-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-04-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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