Liabilities / Assets
92nd percentile
Higher debt load relative to assets than 92% of similar nonprofits.
EIN 77-0377578 • 501(c)3 • Santa Barbara, CA
Profile
To preserve, study, compile, archive and disseminate information relating to man's underwater activities and to promote public awareness of participation in underwater activities.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
92nd percentile
Higher debt load relative to assets than 92% of similar nonprofits.
Liabilities / Revenue
97th percentile
Higher debt load relative to revenue than 97% of similar nonprofits.
Net Margin
40th percentile
Higher net margin than 40% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
43rd percentile
Faster asset growth than 43% of similar nonprofits.
Revenue Growth
70th percentile
Faster revenue growth than 70% of similar nonprofits.
Assets
Up$390,549
Up $14,481 (+3.9%) from 2023
Liabilities
Down$292,068
Down $22,751 (-7.2%) from 2023
Net Assets
Up$98,481
Up $37,232 (+61%) from 2023
Revenue
Up$162,713
Up $5,793 (+3.7%) from 2023
Expenses
Down$159,981
Down $888 (-0.6%) from 2023
Net Income
Up$2,732
Up $6,681 (+169%) from 2023
Most recent year
2024 • Form 990EZDetailed filing. Detailed filing data is available for this year.
To preserve, study, compile archive and disseminate information relating to the history of man's underwater activities and to promote public awareness of and participation in underwater activities.
To preserve, study, compile, archive and disseminate information relating to man's underwater activities and to promote public awareness of participation in underwater activities.
| Description | Grants | Expenses |
|---|---|---|
| Publication of the quarterly periodical, The Journal of Diving History | $0 | $33,133 |
| Annual Conference: Diver's Reunion, held in Santa Barbara, CA | $0 | $10,742 |
| Attend various dive related trade shows to promote The Historical Diving Society's mission. | $0 | $4,895 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Sub Sea Archives and Antiques Inc | Publisher Jodh | FT | $51,200 | - | $51,200 |
| - | Contract Employee - Jodh | PT | $14,000 | - | $14,000 |
| Jon Council | President And Executive Director | FT | $12,000 | - | $12,000 |
| Jill Leaney | Contract Label - Jodh | PT | $8,800 | - | $8,800 |
| Joan Forsberg | Contract Employee - Jodh, Director | - | $1,400 | - | $1,400 |
| Thomas Ingram | Chairman | PT | $0 | - | - |
| Eric Eckes | Treasurer | PT | $0 | - | - |
| Thomas Ulrich | Director | - | $0 | - | - |
| Phil Newsom | Director | - | $0 | - | - |
| Ian Koblick | Director | - | $0 | - | - |
| Paul Guiver | Director | - | $0 | - | - |
| Sidney Macken | Secretaryu | PT | $0 | - | - |
“Description;Amount^Accounting;399|Advertising;589|Awards;291|Bad debts;8161|Bank and credit card fees;1659|Conferences;4039|Donations;1500|Insurance;1539|Interest;72|Legal;169|Meals and entertainment;435|Office supplies;56|Telephone;1266|Trade shows;1034|Travel;9436|Website;8803^Total;39448^”
“Description;Amount^Helmets 2 complete and 5 shells;34500^Total;34500^”
“Description;EOY Amount^Accounts receivable;56100|Inventory;3783|Prepaid expenses;763|Equipment and Helmets;39838^Total;100484^”
“Description;EOY Amount^Accounts payable;8628|Unearned member fees;13771|Unearned sponsor fees;57350|Deferred liabilities;212319^Total;292068^”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990EZ/BenefitsPaidToOrForMembersAmt | 0 | 0 |
| IRS990EZ/BooksInCareOfDetail/PersonNm | 0 | Eric L Eckes Treasurer |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 8059341660 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 7 W Figueroa Street Suite 300 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | Santa Barbara |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 93101 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 299862 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 290065 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 56847 |
| IRS990EZ/CostOfGoodsSoldAmt | 0 | 8766 |
| IRS990EZ/CostOrOtherBasisExpenseSaleAmt | 0 | 0 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 2732 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 87400 |
| IRS990EZ/FiledScheduleAInd | 0 | 1 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form1120PolFiledInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 376068 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 390549 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GainOrLossFromSaleOfAssetsAmt | 0 | 0 |
| IRS990EZ/GamingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 0 |
| IRS990EZ/GrossProfitLossSlsOfInvntryAmt | 0 | 6406 |
| IRS990EZ/GrossReceiptsAmt | 0 | 171479 |
| IRS990EZ/GrossSalesOfInventoryAmt | 0 | 15172 |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InvestmentIncomeAmt | 0 | 4308 |
| IRS990EZ/LandAndBuildingsGrp/BOYAmt | 0 | 0 |
| IRS990EZ/LandAndBuildingsGrp/EOYAmt | 0 | 0 |
| IRS990EZ/LobbyingActivitiesInd | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MembershipDuesAmt | 0 | 24506 |
| IRS990EZ/MethodOfAccountingAccrualInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 61249 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 98481 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 61249 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 98481 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 40 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 40 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 20 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 3 | 10 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 4 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 5 | 5 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 6 | 8 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 7 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 8 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 9 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 10 | 2 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 11 | 5 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/BusinessName/BusinessNameLine1Txt | 0 | Bonnie Toth Advertising |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 51200 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 12000 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 14000 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 3 | 8800 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 4 | 1400 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 11 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Sub Sea Archives and Antiques Inc |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Jon Council |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Jill Leaney |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | Joan Forsberg |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | Thomas Ingram |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | Eric Eckes |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | Thomas Ulrich |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | Phil Newsom |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | Ian Koblick |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | Paul Guiver |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 10 | Sidney Macken |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | Publisher JoDH |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | President and Executive Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Contract Employee - JoDH |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | Contract Label - JoDH |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | Contract Employee - JoDH, Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | Chairman |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | Treasurer |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 10 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 11 | Secretaryu |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 76206 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 100484 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 34500 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 39448 |
| IRS990EZ/OtherRevenueTotalAmt | 0 | 0 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | To preserve, study, compile, archive and disseminate information relating to man's underwater activities and to promote public awareness of participation in underwater activities. |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 33133 |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 70646 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | Publication of the quarterly periodical, The Journal of Diving History |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | Annual Conference: Diver's Reunion, held in Santa Barbara, CA |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | Attend various dive related trade shows to promote The Historical Diving Society's mission. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 1 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 2 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 33133 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 10742 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 4895 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/SalariesOtherCompEmplBnftAmt | 0 | 0 |
| IRS990EZ/SaleOfAssetsGrossAmt | 0 | 0 |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 0 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 314819 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 292068 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 159981 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 48770 |
| IRS990EZ/TotalRevenueAmt | 0 | 162713 |
| IRS990EZ/TransactionWithControlEntInd | 0 | 0 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | www.hds.org |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 81353 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 94010 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 314813 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 83254 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 54773 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 628203 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 4308 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 444 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 33 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 8 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 14 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 4807 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 15172 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 2831 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1903 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 1811 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 10277 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 31994 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearAmt | 0 | 61880 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus1YearAmt | 0 | 59635 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus2YearsAmt | 0 | 62326 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus3YearsAmt | 0 | 57875 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus4YearsAmt | 0 | 57899 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 299615 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 4308 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 444 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 33 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 8 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 14 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 4807 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00498 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00056 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.99502 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99944 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 959812 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsPY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 158405 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 156476 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 379042 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 142940 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 122949 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 959812 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 162713 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 156920 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 379075 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 142948 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 122963 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 964619 |
| 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 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Description;Amount^Accounting;399|Advertising;589|Awards;291|Bad debts;8161|Bank and credit card fees;1659|Conferences;4039|Donations;1500|Insurance;1539|Interest;72|Legal;169|Meals and entertainment;435|Office supplies;56|Telephone;1266|Trade shows;1034|Travel;9436|Website;8803^Total;39448^ |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Description;Amount^Helmets 2 complete and 5 shells;34500^Total;34500^ |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Description;EOY Amount^Accounts receivable;56100|Inventory;3783|Prepaid expenses;763|Equipment and Helmets;39838^Total;100484^ |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | Description;EOY Amount^Accounts payable;8628|Unearned member fees;13771|Unearned sponsor fees;57350|Deferred liabilities;212319^Total;292068^ |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990-EZ, Part I, Line 20 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990-EZ, Part II, Line 24 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990-EZ, Part II, Line 26 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Eric Eckes |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8059341660 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-02-25 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | HISTORICAL DIVING SOCIETY |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | HIST |
| ReturnHeader/Filer/EIN | 0 | 770377578 |
| ReturnHeader/Filer/PhoneNum | 0 | 8059341660 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 7 W Figueroa Street Suite 300 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Santa Barbara |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 93101 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 1 |
| ReturnHeader/ReturnTs | 0 | 2025-02-25T16:52:27-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-12-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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