Liabilities / Assets
39th percentile
Higher debt load relative to assets than 39% of similar nonprofits.
EIN 38-2236345 • 501(c)3 • Ann Arbor, MI
Profile
Ann arbor hands-on museum creates moments of discovery that inspire curiosity, exploration and respect for stem and the natural world. Together with the leslie science & nature center, we envision a world where curiosity today leads to more purposeful lives tomorrow.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
39th percentile
Higher debt load relative to assets than 39% of similar nonprofits.
Liabilities / Revenue
51st percentile
Higher debt load relative to revenue than 51% of similar nonprofits.
Net Margin
31st percentile
Higher net margin than 31% of similar nonprofits.
Top Officer Pay
45th percentile
Higher top officer pay than 45% of similar nonprofits.
Top officer pay equals 3.8% of source-year revenue.
Asset Growth
31st percentile
Faster asset growth than 31% of similar nonprofits.
Revenue Growth
26th percentile
Faster revenue growth than 26% of similar nonprofits.
Assets
Down$11,373,109
Down $86,701 (-0.8%) from 2024
Liabilities
Down$1,066,060
Down $9,477 (-0.9%) from 2024
Net Assets
Down$10,307,049
Down $77,224 (-0.7%) from 2024
Revenue
Down$4,568,439
Down $202,430 (-4.2%) from 2024
Expenses
Up$4,645,663
Up $692,171 (+18%) from 2024
Net Income
Down-$77,224
Down $894,601 (-109%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
To inspire people to discover the wonder of science, technology, math, art, and engineering and to be the leader in imaginative learning experiences.
Ann arbor hands-on museum creates moments of discovery that inspire curiosity, exploration and respect for stem and the natural world. Together with the leslie science & nature center, we envision a world where curiosity today leads to more purposeful lives tomorrow.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $5,674,566 | $6,077,670 | ▲ $403,104 |
| Land, Buildings, and Equipment, Net | $4,206,827 | $4,091,734 | ▼ $115,093 |
| Pledges and Grants Receivable | $255,846 | $455,696 | ▲ $199,850 |
| Accounts Receivable | $378,110 | $85,685 | ▼ $292,425 |
| Inventories for Sale or Use | $48,102 | $61,396 | ▲ $13,294 |
| Prepaid Expenses and Deferred Charges | $14,001 | $22,361 | ▲ $8,360 |
| Investments in Publicly Traded Securities | $11,584 | $11,530 | ▼ $54 |
| Cash and Non-Interest-Bearing Accounts | $268,249 | $4,645 | ▼ $263,604 |
| Total Assets | $11,459,810 | $11,373,109 | ▼ $86,701 |
| Other Assets Total | $602,525 | $562,392 | ▼ $40,133 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $350,786 | $395,722 | ▲ $44,936 |
| Deferred Revenue | $371,754 | $376,704 | ▲ $4,950 |
| Other Liabilities | $352,997 | $293,634 | ▼ $59,363 |
| Total Liabilities | $1,075,537 | $1,066,060 | ▼ $9,477 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $9,021,978 | $8,839,461 | ▼ $182,517 |
| Net Assets With Donor Restrictions | $1,362,295 | $1,467,588 | ▲ $105,293 |
| Total Net Assets Fund Balance | $10,384,273 | $10,307,049 | ▼ $77,224 |
| Total Liabilities and Net Assets / Fund Balance | $11,459,810 | $11,373,109 | ▼ $86,701 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $1,447,489 | $2,891,274 | $4,338,763 |
| Equipment | $1,138,277 | $2,085,141 | $3,223,418 |
| Leasehold Improvements | $1,241,468 | $1,059,019 | $2,300,487 |
| Land | $264,500 | - | $264,500 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Susan Westhoff | President/ce | FT | $140,012 | $31,961 | $171,973 |
| Susan Westhoff | President/CEO | - | $140,012 | $31,961 | $171,973 |
| Name | Title |
|---|---|
| Paige Morrison | Chair |
| Paul Fanson | Vice Chair |
| Alan P Jesiel | Trustee |
| Andy Buchsbaum | Trustee |
| Jeffrey Evans | Trustee |
| Karthik Ramani | Trustee |
| Kira Barton | Trustee |
| Matthias Bauer | Trustee |
| Mike Shriberg | Trustee |
| Nick Schmidt | Trustee |
| Praveena Ramaswami | Trustee |
| Robert J Rock | Trustee |
| Rosa Bushkuhl | Trustee |
| Schuyler Ferguson | Trustee |
| Sean Etheridge | Trustee |
| Therese Perlowski | Trustee |
| Wayne Millette | Member at La |
| Shoshannah Lenski | Secretary |
| Mark Holtz | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $2,740,328 |
| Other Expenses | $1,905,335 |
| Total Fundraising Expense | $358,525 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $1,468,562 | $422,588 | $222,601 | $2,113,751 |
| Depreciation Depletion | $477,272 | $36,268 | $5,182 | $518,722 |
| Occupancy | $232,916 | $3,956 | $3,800 | $240,672 |
| Other Employee Benefits | $129,122 | $91,927 | $14,558 | $235,607 |
| Payroll Taxes | $123,773 | $46,791 | $15,362 | $185,926 |
| Office Expenses | $90,612 | $37,137 | $18,630 | $146,379 |
| Current Officers, Directors, Trustees, and Key Employees | $140,012 | - | - | $140,012 |
| Fees for Services Other | $13,574 | $113,867 | $4,700 | $132,141 |
| Other Expenses | $89,440 | $529 | $1,785 | $91,754 |
| All Other Expenses | $14,385 | - | $51,795 | $66,180 |
| Insurance | $54,224 | $10,433 | $907 | $65,564 |
| Pension Plan Contributions | $35,640 | $25,374 | $4,018 | $65,032 |
| Information Technology | $47,901 | $11,758 | $1,724 | $61,383 |
| Advertising | $29,241 | $11,763 | $4,998 | $46,002 |
| Travel | $36,513 | $2,760 | $1,920 | $41,193 |
| Fees for Services Accounting | - | $17,500 | - | $17,500 |
| Conferences and Meetings | $7,996 | $5,755 | $2,274 | $16,025 |
| Fees for Service Investment Mgmnt Fees | - | $4,914 | - | $4,914 |
| Total Functional Expenses | $3,425,232 | $861,906 | $358,525 | $4,645,663 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $4,645,663 |
| Total Expenses per Audited Statements | $4,645,663 |
| Total Expenses per Form 990 | $4,645,663 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Operating Lease Liability | $293,634 |
“The organization is sent a preliminary draft of form 990, at which time it is reviewed by management. Questions, comments, or changes are relayed back to the preparer and the proper changes are made before the final draft is approved and filed.”
“Staff and trustees shall sign a form declaring no conflict of interest, or make prompt and full disclosure on the form any potential situation that may involve a conflict of interest.”
“The board of trustees uses a salary survey from the michigan nonprofit association as well as industry salary reports from astc, acm, and anca that provides information for area nonprofits in washtenaw county as a determination for the salary and benefits of the ceo/president.”
“The ceo uses the michigan nonprofit association salary survey, as well as industry salary survey reports, including astc, acm and anca, as a base for compensation comparison and support for key employees.”
“Upon request of individuals”
“Ann arbor hands-on museum creates moments of discovery that inspire curiosity, exploration and respect for stem and the natural world. Together with the leslie science & nature center, we envision a world where curiosity today leads to more purposeful lives tomorrow.”
“Volunteers include trustees as well as community members who contribute their time and talents through wildlife care, graphic design, land management, preparing materials for schools, and serving on-site at the nature center or museum for program support.”
“The ann arbor hands-on museum and leslie science & nature center provide unique, inspiring programs and spaces for communities across southeastern michigan to enjoy. We serve over 300,000 annually through our innovative programming, engaging area schools, scouts, community groups and families to explore stem concepts and careers. Through our ann arbor locations and outreach programming, we engage people across 11 counties in southeast michigan as well as throughout the state and nation through our distance learning programs. In addition, we provide robust top-rated virtual programming across the country and even world-wide. The museum operates daily programming both on- and off-site; bringing scientific concepts to life through hands-on experiments. The museum centers accessibility in our programming with scholarships, as well as discounted admissions for underserved communities. Barrier-free access is paramount to our work, and we seek to explore expanding opportunities for all to learn about stem and explore career pathways. The leslie science and nature center provides programming which includes environmental education along with wildlife and science-based programs for children and families. Programming includes school field trips to the nature center, outreach across southeastern michigan including live wildlife presentations and environmental programming as well as a robust summer camp program.”
“Professional standards require an analysis of uncertain tax positions for the purpose of determining whether benefits associated with those positions may be recognized for financial statement purposes. Based on the analysis, the organization has determined that it has no material uncertain tax positions for which the benefits may not be recognized nor for which disclosure is required.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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| IRS990/ActivityOrMissionDesc | 0 | ANN ARBOR HANDS-ON MUSEUM CREATES MOMENTS OF DISCOVERY THAT INSPIRE CURIOSITY, EXPLORATION AND RESPECT FOR STEM AND THE NATURAL WORLD. TOGETHER WITH THE LESLIE SCIENCE & NATURE CENTER, WE ENVISION A WORLD WHERE CURIOSITY TODAY LEADS TO MORE PURPOSEFUL LIVES TOMORROW. |
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| IRS990/Desc | 0 | THE ANN ARBOR HANDS-ON MUSEUM AND LESLIE SCIENCE & NATURE CENTER PROVIDE UNIQUE, INSPIRING PROGRAMS AND SPACES FOR COMMUNITIES ACROSS SOUTHEASTERN MICHIGAN TO ENJOY. WE SERVE OVER 300,000 ANNUALLY THROUGH OUR INNOVATIVE PROGRAMMING, ENGAGING AREA SCHOOLS, SCOUTS, COMMUNITY GROUPS AND FAMILIES TO EXPLORE STEM CONCEPTS AND CAREERS. THROUGH OUR ANN ARBOR LOCATIONS AND OUTREACH PROGRAMMING, WE ENGAGE PEOPLE ACROSS 11 COUNTIES IN SOUTHEAST MICHIGAN AS WELL AS THROUGHOUT THE STATE AND NATION THROUGH OUR DISTANCE LEARNING PROGRAMS. IN ADDITION, WE PROVIDE ROBUST TOP-RATED VIRTUAL PROGRAMMING ACROSS THE COUNTRY AND EVEN WORLD-WIDE. THE MUSEUM OPERATES DAILY PROGRAMMING BOTH ON- AND OFF-SITE; BRINGING SCIENTIFIC CONCEPTS TO LIFE THROUGH HANDS-ON EXPERIMENTS. THE MUSEUM CENTERS ACCESSIBILITY IN OUR PROGRAMMING WITH SCHOLARSHIPS, AS WELL AS DISCOUNTED ADMISSIONS FOR UNDERSERVED COMMUNITIES. BARRIER-FREE ACCESS IS PARAMOUNT TO OUR WORK, AND WE SEEK TO EXPLORE EXPANDING OPPORTUNITIES FOR ALL TO LEARN ABOUT STEM AND EXPLORE CAREER PATHWAYS. THE LESLIE SCIENCE AND NATURE CENTER PROVIDES PROGRAMMING WHICH INCLUDES ENVIRONMENTAL EDUCATION ALONG WITH WILDLIFE AND SCIENCE-BASED PROGRAMS FOR CHILDREN AND FAMILIES. PROGRAMMING INCLUDES SCHOOL FIELD TRIPS TO THE NATURE CENTER, OUTREACH ACROSS SOUTHEASTERN MICHIGAN INCLUDING LIVE WILDLIFE PRESENTATIONS AND ENVIRONMENTAL PROGRAMMING AS WELL AS A ROBUST SUMMER CAMP PROGRAM. |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 140012 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | MEMBER AT LA |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | PRESIDENT/CE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | TRUSTEE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1979 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 19 |
| IRS990/GovernmentGrantsAmt | 0 | 9350 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 4756012 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 367479 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 19 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 1724 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 11758 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 47901 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 61383 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 907 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 10433 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 54224 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 65564 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 48102 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 61396 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 217369 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 217369 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 11584 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 11530 |
| IRS990/IRPDocumentCnt | 0 | 18 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 6035434 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 4206827 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 4091734 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 10127168 |
| IRS990/LegalDomicileStateCd | 0 | MI |
| 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 | ANN ARBOR HANDS-ON MUSEUM CREATES MOMENTS OF DISCOVERY THAT INSPIRE CURIOSITY, EXPLORATION AND RESPECT FOR STEM AND THE NATURAL WORLD. TOGETHER WITH THE LESLIE SCIENCE & NATURE CENTER, WE ENVISION A WORLD WHERE CURIOSITY TODAY LEADS TO MORE PURPOSEFUL LIVES TOMORROW. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 10384273 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 10307049 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 179906 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 179906 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 9021978 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 8839461 |
| IRS990/NoncashContributionsAmt | 0 | 15840 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 3800 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 3956 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 232916 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 240672 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 18630 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 37137 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 90612 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 146379 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 602525 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 562392 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 14558 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 91927 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 129122 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 235607 |
| IRS990/OtherExpensesGrp/Desc | 0 | REPAIRS AND MAINTENANCE |
| IRS990/OtherExpensesGrp/Desc | 1 | EXHIBIT EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 2 | BANK CHARGES |
| IRS990/OtherExpensesGrp/Desc | 3 | SUPPLIES |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 4271 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 1785 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 190 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 2249 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 16147 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 529 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 177182 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 156112 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 100755 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 89440 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 177372 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 158361 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 121173 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 91754 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 352997 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 293634 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER REVENUE |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | MUSEUM RENTALS |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 137779 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 21042 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 137779 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 21042 |
| IRS990/OtherRevenueTotalAmt | 0 | 158821 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 222601 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 422588 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1468562 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2113751 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 15362 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 46791 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 123773 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 185926 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 4018 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 25374 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 35640 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 65032 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 255846 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 455696 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 14001 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 22361 |
| IRS990/PrincipalOfficerNm | 0 | SUSAN WESTHOFF |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TICKET SALES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | EDUCATIONAL PROGRAMS |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | MEMBERSHIPS |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1127412 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 974864 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 645695 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1127412 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 974864 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 645695 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 1542742 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 203324 |
| IRS990/PYOtherExpensesAmt | 0 | 1590404 |
| IRS990/PYOtherRevenueAmt | 0 | 307254 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2717549 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 817377 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2363088 |
| IRS990/PYTotalExpensesAmt | 0 | 3953492 |
| IRS990/PYTotalRevenueAmt | 0 | 4770869 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -77224 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
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