Liabilities / Assets
33rd percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 94-2694547 • 501(c)3 • Cupertino, CA
Profile
The mission of the cupertino historical society and museum is to preserve and illuminate cupertino's past to inspire our youth, strengthen the sense of community, and shape a better future by making cupertino history relevant and available to all.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
33rd percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
35th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
83rd percentile
Higher net margin than 83% of similar nonprofits.
Top Officer Pay
55th percentile
Higher top officer pay than 55% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
67th percentile
Faster asset growth than 67% of similar nonprofits.
Revenue Growth
75th percentile
Faster revenue growth than 75% of similar nonprofits.
Assets
Up$664,111
Up $70,436 (+12%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$664,111
Up $70,436 (+12%) from 2024
Revenue
Up$210,856
Up $50,849 (+32%) from 2024
Expenses
Up$140,420
Up $4,890 (+3.6%) from 2024
Net Income
Up$70,436
Up $45,959 (+188%) from 2024
Most recent year
2025 • Form 990XML pending. An XML filing is linked for this year, but detailed extraction is still pending.
The latest 2025 filing currently has linked XML that has not been fully parsed yet. Showing the latest detailed filing from 2023 below.
The mission of the cupertino historical society and museum is to preserve and illuminate cupertino's past to inspire our youth, strengthen the sense of community, and shape a better future by making cupertino history relevant and available to all.
The cupertino historical society and museum (chs&m) perserves and illuminates cupertino's past to inspire our youth, strengthen the sense of community, and shape a better future by making cupertino history relevant and available to all.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Rtn Earn Endowment Incm Other Fnds | $529,273 | $599,448 | ▲ $70,175 |
| Investments Program Related | $497,824 | $541,434 | ▲ $43,610 |
| Cash and Non-Interest-Bearing Accounts | $30,966 | $55,818 | ▲ $24,852 |
| Savings and Temporary Cash Investments | $483 | $2,196 | ▲ $1,713 |
| Accounts Receivable | - | $0 | - |
| Other Notes and Loans Receivable, Net | - | $0 | - |
| Pledges and Grants Receivable | - | $0 | - |
| Receivable From Disqualified Prsn | - | $0 | - |
| Receivables From Officers Etc | - | $0 | - |
| Investments Other Securities | - | $0 | - |
| Investments in Publicly Traded Securities | - | $0 | - |
| Land, Buildings, and Equipment, Net | - | $0 | - |
| Intangible Assets | - | $0 | - |
| Inventories for Sale or Use | - | $0 | - |
| Prepaid Expenses and Deferred Charges | - | $0 | - |
| Total Assets | $529,273 | $599,448 | ▲ $70,175 |
| Other Assets Total | - | $0 | - |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $529,273 | $599,448 | ▲ $70,175 |
| Total Liabilities and Net Assets / Fund Balance | $529,273 | $599,448 | ▲ $70,175 |
| Name | Title |
|---|---|
| Neeraj Matur | President |
| Claudio Bono | Vice President |
| Valerie Abid | Secretary |
| Bruce Parsons | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $50,071 |
| Salaries, Compensation, and Employee Benefits | $43,047 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | - | $36,141 | - | $36,141 |
| Insurance | - | $10,558 | - | $10,558 |
| Occupancy | $6,352 | - | - | $6,352 |
| Fees for Services Other | $4,738 | $446 | - | $5,184 |
| All Other Expenses | $2,237 | $2,626 | - | $4,863 |
| Other Employee Benefits | - | $4,059 | - | $4,059 |
| Payroll Taxes | - | $2,847 | - | $2,847 |
| Other Expenses | $11,026 | $2,273 | - | $2,273 |
| Office Expenses | - | $1,773 | - | $1,773 |
| Fees for Services Accounting | - | $1,565 | - | $1,565 |
| Advertising | - | $725 | - | $725 |
| Total Functional Expenses | $24,353 | $68,765 | $0 | $93,118 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“No review was or will be conducted.”
“No documents available to the public.”
“A thorough review is conducted by the governing body before the form 990 is filed.”
“The organization's governing body decides to provide the governing documents, conflict of interest policy, and financial statements being displayed to all members and interested public upon request in its main office at 10185 n. Stelling road, cupertino, ca 95014 on normal business hours.”
“Inspire our youth, strengthen the sense of community, and shape a better future by making cupertino history relevant and available to all.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE CUPERTINO HISTORICAL SOCIETY AND MUSEUM (CHS&M) PERSERVES AND ILLUMINATES CUPERTINO'S PAST TO INSPIRE OUR YOUTH, STRENGTHEN THE SENSE OF COMMUNITY, AND SHAPE A BETTER FUTURE BY MAKING CUPERTINO HISTORY RELEVANT AND AVAILABLE TO ALL. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 725 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 725 |
| IRS990/AllOtherContributionsAmt | 0 | 57820 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2626 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 2237 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 4863 |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | BRUCE PARSONS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4084215380 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 7954 SUNDERLAND DRIVE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | CUPERTINO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 95014 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 30966 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 55818 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 0 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CostOfGoodsSoldAmt | 0 | 50 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 62730 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 55611 |
| IRS990/CYOtherExpensesAmt | 0 | 50071 |
| IRS990/CYOtherRevenueAmt | 0 | 1194 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 43758 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 70175 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 43047 |
| IRS990/CYTotalExpensesAmt | 0 | 93118 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 163293 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 0 |
| IRS990/Desc | 0 | MUSEUM OPERATIONS/EXHIBITS |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 13327 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1565 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1565 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 446 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 4738 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 5184 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | VALERIE ABID |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | NEERAJ MATUR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BRUCE PARSONS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | CLAUDIO BONO |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Vice President |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1981 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 17 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 163343 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 646 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 17 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 0 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 10558 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 10558 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 55611 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 55611 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/BOYAmt | 0 | 497824 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 541434 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 4910 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | THE CUPERTINO HISTORICAL SOCIETY AND MUSEUM (CHS&M) PERSERVES AND ILLUMINATES CUPERTINO'S PAST TO INSPIRE OUR YOUTH, STRENGTHEN THE SENSE OF COMMUNITY, AND SHAPE A BETTER FUTURE BY MAKING CUPERTINO HISTORY RELEVANT AND AVAILABLE TO ALL. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 529273 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 599448 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 596 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 596 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 6352 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 6352 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1773 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 1773 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 4059 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 4059 |
| IRS990/OtherExpensesGrp/Desc | 0 | FUNDRAISING EVENT EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 1 | MARKETING EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 2 | UBS FEES |
| IRS990/OtherExpensesGrp/Desc | 3 | TELEPHONE & INTERNET |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2964 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 2788 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 2273 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 11026 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 11026 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 2964 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 2788 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 2273 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | PAYPAL INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 221 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 377 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 221 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 377 |
| IRS990/OtherRevenueTotalAmt | 0 | 598 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 36141 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 36141 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 2847 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 2847 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 0 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | FUNDRAISER EVENTS & BBQ |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 43758 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 43758 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | ANNUAL BBQ FUNDRAISING EVENT. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 10726 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 42564 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | ANNUAL PAUL & EDDIES EVENT. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 300 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 1194 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 72146 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | -61715 |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 42056 |
| IRS990/PYOtherRevenueAmt | 0 | 7788 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 5500 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -83613 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 65276 |
| IRS990/PYTotalExpensesAmt | 0 | 107332 |
| IRS990/PYTotalRevenueAmt | 0 | 23719 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 70175 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | true |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 529273 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 599448 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 483 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 2196 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 107084 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 95279 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 58051 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 53816 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 68208 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 382438 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 55611 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 107461 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 49931 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 56448 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 27548 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 296999 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.56240 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.62870 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 382438 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 107084 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 95279 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 58051 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 53816 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 68208 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 382438 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 680035 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearAmt | 0 | 598 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 598 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
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| IRS990ScheduleD/TotalBookValueProgramRltdAmt | 0 | 541434 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | No review was or will be conducted. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | No documents available to the public. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | INSPIRE OUR YOUTH, STRENGTHEN THE SENSE OF COMMUNITY, AND SHAPE A BETTER FUTURE BY MAKING CUPERTINO HISTORY RELEVANT AND AVAILABLE TO ALL. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | A THOROUGH REVIEW IS CONDUCTED BY THE GOVERNING BODY BEFORE THE FORM 990 IS FILED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | THE ORGANIZATION'S GOVERNING BODY DECIDES TO PROVIDE THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS BEING DISPLAYED TO ALL MEMBERS AND INTERESTED PUBLIC UPON REQUEST IN ITS MAIN OFFICE AT 10185 N. STELLING ROAD, CUPERTINO, CA 95014 ON NORMAL BUSINESS HOURS. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section C, Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PART I, LINE 1, DESCRIPTION OF ORGANIZATION MISSION: |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION B, LINE 11B: |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART VI, SECTION C, LINE 19: |
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| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
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| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
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| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
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| IRS990/TotalAssetsEOYAmt | 0 | 599448 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 529273 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 599448 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 62730 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 68765 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 24353 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 93118 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 529273 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 599448 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 24353 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 43758 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 100563 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 163293 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 529273 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 599448 |
| IRS990/TravelGrp/TotalAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 10185 N STELLING RD |
| IRS990/USAddress/CityNm | 0 | CUPERTINO |
| IRS990/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/USAddress/ZIPCd | 0 | 95014 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 17 |
| IRS990/VotingMembersIndependentCnt | 0 | 17 |
| IRS990/WebsiteAddressTxt | 0 | WWW.CUPERTINOHISTORICALSOCIETY.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/AdditionalFilerInformation/TrustedCustomerGrp/AuthenticationAssuranceLevelCd | 0 | AAL1 |
| ReturnHeader/AdditionalFilerInformation/TrustedCustomerGrp/FederatedAssuranceLevelCd | 0 | FAL1 |
| ReturnHeader/AdditionalFilerInformation/TrustedCustomerGrp/IdentityAssuranceLevelCd | 0 | IAL1 |
| ReturnHeader/AdditionalFilerInformation/TrustedCustomerGrp/TrustedCustomerCd | 0 | 0 |
| ReturnHeader/BuildTS | 0 | 2023-04-26 12:10:37Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | BRUCE PARSONS |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2023-09-12 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | CUPERTINO HISTORICAL SOCIETY INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | CUPE |
| ReturnHeader/Filer/EIN | 0 | 942694547 |
| ReturnHeader/Filer/PhoneNum | 0 | 4084215380 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 10185 N STELLING RD |
| ReturnHeader/Filer/USAddress/CityNm | 0 | CUPERTINO |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 95014 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 200435450 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | EDWARD L GRANT CPA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 6920 SANTA TERESA BLVD STE 103 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | SAN JOSE |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 95119 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 4083600500 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | EDWARD L GRANT CPA |
| ReturnHeader/PreparerPersonGrp/SelfEmployedInd | 0 | X |
| ReturnHeader/ReturnTs | 0 | 2023-09-14T11:23:02-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/SigningOfficerGrp/PersonFullName/PersonFirstNm | 0 | BRUCE |
| ReturnHeader/SigningOfficerGrp/PersonFullName/PersonLastNm | 0 | PARSONS |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2022-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2023-06-30 |
| ReturnHeader/TaxYr | 0 | 2022 |
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