Liabilities / Assets
37th percentile
Higher debt load relative to assets than 37% of similar nonprofits.
EIN 51-0188363 • 501(c)3 • Lake Forest, IL
Profile
To enhance and support the mission, vision and services of the lake forest library, and engage in related educational, charitable and cultural activities.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
37th percentile
Higher debt load relative to assets than 37% of similar nonprofits.
Liabilities / Revenue
59th percentile
Higher debt load relative to revenue than 59% of similar nonprofits.
Net Margin
79th percentile
Higher net margin than 79% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
73rd percentile
Faster asset growth than 73% of similar nonprofits.
Revenue Growth
41st percentile
Faster revenue growth than 41% of similar nonprofits.
Assets
Up$1,488,722
Up $184,676 (+14%) from 2024
Liabilities
Up$28,620
Up $26,144 (+1056%) from 2024
Net Assets
Up$1,460,102
Up $158,532 (+12%) from 2024
Revenue
Up$222,330
Up $5,532 (+2.6%) from 2024
Expenses
Down$161,795
Down $174,555 (-52%) from 2024
Net Income
Up$60,535
Up $180,087 (+151%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
To enhance and support the mission, vision and services of the lake forest library, and engage in related educational, charitable and cultural activities.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $1,018,427 | $1,139,894 | ▲ $121,467 |
| Cash and Non-Interest-Bearing Accounts | $148,491 | $208,295 | ▲ $59,804 |
| Savings and Temporary Cash Investments | $137,128 | $137,245 | ▲ $117 |
| Prepaid Expenses and Deferred Charges | - | $3,288 | - |
| Total Assets | $1,304,046 | $1,488,722 | ▲ $184,676 |
| Liabilities | |||
| Grants Payable | - | $25,693 | - |
| Accounts Payable and Accrued Expenses | $2,476 | $2,927 | ▲ $451 |
| Total Liabilities | $2,476 | $28,620 | ▲ $26,144 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,301,570 | $1,460,102 | ▲ $158,532 |
| Total Net Assets Fund Balance | $1,301,570 | $1,460,102 | ▲ $158,532 |
| Total Liabilities and Net Assets / Fund Balance | $1,304,046 | $1,488,722 | ▲ $184,676 |
| Name | Title |
|---|---|
| Tanya Huang | President |
| Leanna Walther | Vice President |
| Cynthia Hessemer | Director |
| Cynthia Toohey | Director |
| Heather Strong | Director |
| Ingrid Bryzinski | Director |
| Jan Gibson | Director |
| Karen Zarse | Director |
| Laura Friedrich | Director |
| Liz Mcclain | Director |
| Liz Moore | Director |
| Margaret Foster | Director |
| Molly Graziano | Director |
| Paul Bergmann | Director |
| Reed Davis | Director |
| Rowena Festin | Director |
| Sande Noble | Director |
| Scott Oliver | Director |
| Sue Sanborn | Director |
| Tish Borokowski | Director |
| Dan Goon | Membership Secretary |
| Denise Andresen | Secretary |
| Robin Ford | Treasurer |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $96,598 |
| Other Expenses | $65,197 |
| Total Fundraising Expense | $47,050 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $90,598 | - | - | $90,598 |
| Fees for Services Accounting | - | $7,309 | - | $7,309 |
| Office Expenses | - | - | $7,206 | $7,206 |
| Grants to Domestic Individuals | $6,000 | - | - | $6,000 |
| Occupancy | - | $3,820 | - | $3,820 |
| Fees for Services Other | - | $3,750 | - | $3,750 |
| Other Expenses | - | $2,560 | $3,036 | $2,560 |
| Advertising | - | - | $927 | $927 |
| Insurance | - | $708 | - | $708 |
| Total Functional Expenses | $96,598 | $18,147 | $47,050 | $161,795 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Lake Forest Library | Lake Forest, IL | - | Support the Mission and Vision of the Library | $90,598 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“The board treasurer reviews and edits the tax return (as necessary). The final draft of the return is provided to the board prior to filing.”
“Governing documents and financial statements are available to the general public upon request.”
“The financial statement effects of a tax position taken or expected to be taken are recognized in the financial statements when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. As of september 30, 2025, the friends had no uncertain tax positions that qualify for recognition or disclosure in the financial statements.”
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 | 1 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 2476 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 2927 |
| IRS990/AcctCompileOrReviewBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO ENHANCE AND SUPPORT THE MISSION, VISION AND SERVICES OF THE LAKE FOREST LIBRARY, AND ENGAGE IN RELATED EDUCATIONAL, CHARITABLE AND CULTURAL ACTIVITIES. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 927 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 927 |
| IRS990/AllOtherContributionsAmt | 0 | 29651 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | LEANNA WALTHER |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8472340636 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 360 E DEERPATH |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | LAKE FOREST |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60045 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 148491 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 208295 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 0 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 38188 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 96598 |
| IRS990/CYInvestmentIncomeAmt | 0 | 23737 |
| IRS990/CYOtherExpensesAmt | 0 | 65197 |
| IRS990/CYOtherRevenueAmt | 0 | 4813 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 155592 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 60535 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 161795 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 47050 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 222330 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | FRIENDS NORMALLY CONDUCTS TWO USED BOOK SALES (USING DONATED BOOKS FROM LOCAL RESIDENTS) TO RAISE FUNDS TO PROVIDE LAKE FOREST LIBRARY WITH ADDITIONAL RESOURCES BEYOND TAX LEVIES: CHILDREN AND YOUTH READING PROGRAMS AND ADULT READING AND WRITING PROGRAMS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 90598 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 7309 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 7309 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 3750 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 3750 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 4.00 |
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| 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/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 19 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 20 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 21 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 22 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
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| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | INGRID BRYZINSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | PAUL BERGMANN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DENISE ANDRESEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MARGARET FOSTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | TISH BOROKOWSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | ROWENA FESTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | JAN GIBSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | REED DAVIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | LAURA FRIEDRICH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | SANDE NOBLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | SCOTT OLIVER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | CYNTHIA HESSEMER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | HEATHER STRONG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ROBIN FORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | MOLLY GRAZIANO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | LIZ MCCLAIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | LIZ MOORE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | TANYA HUANG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | CYNTHIA TOOHEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | DAN GOON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | SUE SANBORN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | KAREN ZARSE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | LEANNA WALTHER |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
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| 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/ReportableCompFromOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
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| 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/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | MEMBERSHIP SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | VICE PRESIDENT |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1976 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 23 |
| IRS990/GrantAmt | 0 | 90598 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 25693 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 6000 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 6000 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 90598 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 90598 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 222330 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 23 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 708 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 708 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 23737 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 23737 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 1018427 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1139894 |
| IRS990/IRPDocumentCnt | 0 | 1 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 8537 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO ENHANCE AND SUPPORT THE MISSION, VISION AND SERVICES OF THE LAKE FOREST LIBRARY, AND ENGAGE IN RELATED EDUCATIONAL, CHARITABLE AND CULTURAL ACTIVITIES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1301570 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1460102 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 97997 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1301570 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1460102 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 3820 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 3820 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 7206 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 7206 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | EQUIPMENT RENTAL/MAINT |
| IRS990/OtherExpensesGrp/Desc | 1 | BOOK SALE LABOR |
| IRS990/OtherExpensesGrp/Desc | 2 | COMMUNITY EVENT |
| IRS990/OtherExpensesGrp/Desc | 3 | OTHER |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 27998 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 7883 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 3036 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2560 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 27998 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 7883 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3036 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 2560 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | COMMUNITY EVENT |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 4813 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 4813 |
| IRS990/OtherRevenueTotalAmt | 0 | 4813 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 3288 |
| IRS990/PrincipalOfficerNm | 0 | TANYA HUANG |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | BOOK SALES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 155592 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 155592 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | AWARDED SCHOLARSHIPS TO THREE LAKE FOREST AREA HIGH SCHOOL GRADUATING SENIORS FOR MERITORIOUS ESSAYS ON READING AND LITERATURE. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 6000 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 6000 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 54446 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 278366 |
| IRS990/PYInvestmentIncomeAmt | 0 | 25202 |
| IRS990/PYOtherExpensesAmt | 0 | 57984 |
| IRS990/PYOtherRevenueAmt | 0 | 2633 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 134517 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -119552 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 336350 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 216798 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 60535 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 155592 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 137128 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 137245 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 193780 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 188963 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 162848 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 144667 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 135562 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 825820 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 23737 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 25202 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 25379 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 5670 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 5813 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 85801 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearAmt | 0 | 4813 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 9 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 4823 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.86780 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.85670 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 797584 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 28236 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 193780 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 188963 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 162848 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 144667 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 135562 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 825820 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 919077 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2633 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 2633 |
| 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 |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE FINANCIAL STATEMENT EFFECTS OF A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN ARE RECOGNIZED IN THE FINANCIAL STATEMENTS WHEN IT IS MORE LIKELY THAN NOT, BASED ON THE TECHNICAL MERITS, THAT THE POSITION WILL BE SUSTAINED UPON EXAMINATION. AS OF SEPTEMBER 30, 2025, THE FRIENDS HAD NO UNCERTAIN TAX POSITIONS THAT QUALIFY FOR RECOGNITION OR DISCLOSURE IN THE FINANCIAL STATEMENTS. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | 1 |
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