Liabilities / Assets
18th percentile
Higher debt load relative to assets than 18% of similar nonprofits.
EIN 38-2866234 • 501(c)3 • Suttons Bay, MI
Profile
The inland seas education association (isea) is a non-profit charitable organization with the mission of inspiring great lakes curiousity, stewardship and passion. Since its founding in 1989, over 150,000 people have sailed upon isea's tall ships.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
18th percentile
Higher debt load relative to assets than 18% of similar nonprofits.
Liabilities / Revenue
18th percentile
Higher debt load relative to revenue than 18% of similar nonprofits.
Net Margin
89th percentile
Higher net margin than 89% of similar nonprofits.
Top Officer Pay
71st percentile
Higher top officer pay than 71% of similar nonprofits.
Top officer pay equals 5.4% of source-year revenue.
Asset Growth
77th percentile
Faster asset growth than 77% of similar nonprofits.
Revenue Growth
30th percentile
Faster revenue growth than 30% of similar nonprofits.
Assets
Up$8,618,824
Up $1,200,220 (+16%) from 2023
Liabilities
Down$56,777
Down $15,927 (-22%) from 2023
Net Assets
Up$8,562,047
Up $1,216,147 (+17%) from 2023
Revenue
Down$3,487,607
Down $107,210 (-3.0%) from 2023
Expenses
Down$1,738,230
Down $71,622 (-4.0%) from 2023
Net Income
Down$1,749,377
Down $35,588 (-2.0%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
NONE
To inspire a lifetime of great lakes curiosity, stewardship, and passion in people of all ages.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $3,989,864 | $4,088,812 | ▲ $98,948 |
| Cash and Non-Interest-Bearing Accounts | $1,406,113 | $3,515,744 | ▲ $2,109,631 |
| Pledges and Grants Receivable | $1,953,769 | $997,005 | ▼ $956,764 |
| Prepaid Expenses and Deferred Charges | $11,335 | $11,335 | → $0 |
| Accounts Receivable | $57,523 | $5,693 | ▼ $51,830 |
| Inventories for Sale or Use | - | $235 | - |
| Total Assets | $7,418,604 | $8,618,824 | ▲ $1,200,220 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $54,141 | $50,044 | ▼ $4,097 |
| Deferred Revenue | $18,563 | $6,733 | ▼ $11,830 |
| Total Liabilities | $72,704 | $56,777 | ▼ $15,927 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $5,445,442 | $7,339,449 | ▲ $1,894,007 |
| Net Assets With Donor Restrictions | $1,900,458 | $1,222,598 | ▼ $677,860 |
| Total Net Assets Fund Balance | $7,345,900 | $8,562,047 | ▲ $1,216,147 |
| Total Liabilities and Net Assets / Fund Balance | $7,418,604 | $8,618,824 | ▲ $1,200,220 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $1,179,462 | $833,510 | $2,012,972 |
| Land | $1,784,706 | - | $1,784,706 |
| Buildings | $1,083,526 | $571,414 | $1,654,940 |
| Other Land Buildings | $41,118 | $27,412 | $68,530 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Fred Sitkins | Executive Director | FT | $162,495 | $26,754 | $189,249 |
| Name | Title |
|---|---|
| John Seefeld | President |
| William Chaney | Vice President |
| Constanza Hazelwood | Board Member |
| Eric Seefeld | Board Member |
| Kathy Schaeffer | Board Member |
| Mark Forbes | Board Member |
| Sally Somsel | Secretary |
| Pat Curtin | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Seefeld Boatworks LLC | Repair Services | 13831 S BAYVIEW CT, Traverse City, MI 49684 | $133,091 |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $961,432 |
| Other Expenses | $776,798 |
| Total Fundraising Expense | $469,462 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $363,577 | $86,693 | $205,478 | $655,748 |
| Current Officers, Directors, Trustees, and Key Employees | $107,925 | $26,370 | $54,954 | $189,249 |
| Depreciation Depletion | $90,078 | $26,889 | $17,478 | $134,445 |
| Conferences and Meetings | $69,076 | $2,838 | $1,845 | $73,759 |
| Insurance | $34,862 | $4,673 | $26,603 | $66,138 |
| Payroll Taxes | $33,382 | $8,491 | $19,767 | $61,640 |
| Fees for Services Other | $11,060 | $779 | $40,130 | $51,969 |
| Other Employee Benefits | $27,446 | $7,563 | $5,111 | $40,120 |
| Fees for Services Accounting | $21,535 | $6,428 | $4,178 | $32,141 |
| Occupancy | $19,895 | $4,576 | $3,992 | $28,463 |
| Office Expenses | $14,206 | $3,998 | $3,621 | $21,825 |
| Pension Plan Contributions | $8,454 | $2,241 | $3,980 | $14,675 |
| Travel | $6,719 | $2,122 | $1,466 | $10,307 |
| Advertising | $7,355 | - | $2,850 | $10,205 |
| Fees for Services Legal | $4,841 | $1,445 | $2,154 | $8,440 |
| Other Expenses | $4,469 | $866 | $745 | $6,080 |
| Interest | $91 | $27 | $18 | $136 |
| Total Functional Expenses | $1,081,600 | $187,168 | $469,462 | $1,738,230 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $1,738,230 |
| Total Expenses per Audited Statements | $1,738,230 |
| Total Expenses per Form 990 | $1,738,230 |
| Expenses Not Reported on Financial Statements | $0 |
| Expenses Not Reported on Form 990 | $0 |
| Line Item | Amount |
|---|---|
| Fundraising Direct Expenses | $135 |
| Fundraising Gross Income | $0 |
| Professional Fundraising Fees | $0 |
| Interested Party | Relationship | Description | Shared Revenue | Amount |
|---|---|---|---|---|
| - | Board Member | Payment for Repair Services | No | $133,091 |
| Lisa Sitkins | Spouse of Fred Sitkins, Executive Director | Payment for Consulting Services | No | $38,879 |
“Board member eric seefeld is the son of board president john seefeld.”
“Form 990 is reviewed by the board of directors in conjunction with its review of the annual audited financial statements.”
“Directors annually sign an ethics and conflict of interest policy form and report any conflict of interest relationships on a disclosure form.”
“The executive committee leads a performance evaluation of the executive director each year and makes a salary and benefit recommendation to the full board for approval based on the results of the performance evaluation.”
“The organization's governing documents, conflict of interest policy, and financial statements are available to the public upon request at the organization's office.”
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 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 54141 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 50044 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 57523 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 5693 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO INSPIRE A LIFETIME OF GREAT LAKES CURIOSITY, STEWARDSHIP, AND PASSION IN PEOPLE OF ALL AGES. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 2850 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 7355 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 10205 |
| IRS990/AllOtherContributionsAmt | 0 | 3140682 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | FRED SITKINS EXECUTIVE DIRECTOR |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2312713077 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 218 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SUTTONS BAY |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MI |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 496820218 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 1 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1406113 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 3515744 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 54954 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 26370 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 107925 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 189249 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 1845 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 2838 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 69076 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 73759 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 133091 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 13831 S BAYVIEW CT |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | TRAVERSE CITY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MI |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 49684 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | SEEFELD BOATWORKS LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | REPAIR SERVICES |
| IRS990/CostOfGoodsSoldAmt | 0 | 564 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3142782 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 75164 |
| IRS990/CYOtherExpensesAmt | 0 | 776798 |
| IRS990/CYOtherRevenueAmt | 0 | 34934 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 234727 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 1749377 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 961432 |
| IRS990/CYTotalExpensesAmt | 0 | 1738230 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 469462 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 3487607 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 18563 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 6733 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 17478 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 26889 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 90078 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 134445 |
| IRS990/Desc | 0 | ENVIRONMENTAL STEWARDSHIP EDUCATION: TO PROVIDE SHIPBOARD AND ONSHORE GREAT LAKES EDUCATION PROGRAMS TO STUDENTS, FAMILIES, AND ADULTS. SINCE ITS FOUNDING IN 1989, OVER 150,000 PEOPLE HAVE SAILED UPON ISEA'S TALL SHIPS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonatedServicesAndUseFcltsAmt | 0 | 222770 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1900458 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1222598 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 18 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 1081600 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 1 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 4178 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 6428 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 21535 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 32141 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 2154 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 1445 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 4841 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 8440 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 40130 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 779 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 11060 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 51969 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 40.00 |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | 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 | 26754 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | MARK FORBES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | KATHY SCHAEFFER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | CONSTANZA HAZELWOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ERIC SEEFELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | SALLY SOMSEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | PAT CURTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | WILLIAM CHANEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JOHN SEEFELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | FRED SITKINS |
| 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 | 162495 |
| 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/TitleTxt | 0 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1989 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 135 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 8 |
| IRS990/GovernmentGrantsAmt | 0 | 2100 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 3488306 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 8176 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 1286 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 26603 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 4673 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 34862 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 66138 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 18 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 27 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 91 |
| IRS990/InterestGrp/TotalAmt | 0 | 136 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 235 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 75164 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 75164 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 25 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 1432336 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 3989864 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 4088812 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 5521148 |
| IRS990/LegalDomicileStateCd | 0 | MI |
| IRS990/LessRentalExpensesGrp/RealAmt | 0 | 0 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE INLAND SEAS EDUCATION ASSOCIATION (ISEA) IS A NON-PROFIT CHARITABLE ORGANIZATION WITH THE MISSION TO INSPIRE A LIFETIME OF GREAT LAKES CURIOSITY, STEWARDSHIP, AND PASSION IN PEOPLE OF ALL AGES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 7345900 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 8562047 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -135 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -135 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 722 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 722 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 8176 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 8176 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 5445442 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 7339449 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 3992 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 4576 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 19895 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 28463 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 3621 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3998 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 14206 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 21825 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 5111 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 7563 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 27446 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 40120 |
| IRS990/OtherExpensesGrp/Desc | 0 | SHIP OPERATING EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 1 | DIRECT PROGRAM EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | MISCELLANEOUS EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 63866 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 11226 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 745 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 1169 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 866 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 227847 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 20632 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 8150 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 4469 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 291713 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 20632 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 20545 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 6080 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 26171 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 26171 |
| IRS990/OtherRevenueTotalAmt | 0 | 26171 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 205478 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 86693 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 363577 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 655748 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 19767 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 8491 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 33382 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 61640 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 3980 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 2241 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 8454 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 14675 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 1953769 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 997005 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 11335 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 11335 |
| IRS990/PrincipalOfficerNm | 0 | FRED SITKINS |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | -756000 |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | BOAT SALES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 187832 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 46895 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 187832 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 46895 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 3572349 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | -159364 |
| IRS990/PYOtherExpensesAmt | 0 | 843639 |
| IRS990/PYOtherRevenueAmt | 0 | 17794 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 164038 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1784965 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 966213 |
| IRS990/PYTotalExpensesAmt | 0 | 1809852 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 3594817 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1749377 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 8176 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 261620 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt | 0 | 1510208 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt | 0 | 1030000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1087300 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt | 0 | 770000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 4397508 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | MISCELLANEOUS INCOME - 2023 AMOUNT: $ 7,295. 2024 AMOUNT: $ 26,171. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART III, LINE 12, EXPLANATION OF OTHER INCOME: |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 3142782 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3572349 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 2132033 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1596173 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 480743 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 10924080 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 83340 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 9423 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 13901 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 8383 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 196 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 115243 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 236013 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 166838 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 124113 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 187216 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 42702 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 756882 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 83340 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 9423 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 13901 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 8383 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 196 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 115243 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00970 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00470 |
| IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 57097 |
| IRS990ScheduleA/NetIncomeFromOtherUBIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 40000 |
| IRS990ScheduleA/NetIncomeFromOtherUBIGrp/TotalAmt | 0 | 97097 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt | 0 | 26171 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 7295 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 33466 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.61070 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.67460 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 7283454 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 1510208 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 1030000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1087300 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 770000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 4397508 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 3378795 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3739187 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 2256146 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1783389 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 523445 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 11680962 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 3488306 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 3755905 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 2327144 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 1791772 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 563641 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 11926768 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
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