Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 22-1913016 • 501(c)3 • Brookside, NJ
Profile
Mendham township library serves as the township library. It lends books, periodicals, audio/ visual media and provides access to the internet. It organizes informational sessions for children, teens and adults.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
61st percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
75th percentile
Higher net margin than 75% of similar nonprofits.
Top Officer Pay
84th percentile
Higher top officer pay than 84% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
77th percentile
Faster asset growth than 77% of similar nonprofits.
Revenue Growth
61st percentile
Faster revenue growth than 61% of similar nonprofits.
Assets
Up$399,062
Up $68,190 (+21%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$399,062
Up $68,190 (+21%) from 2023
Revenue
Up$391,147
Up $27,270 (+7.5%) from 2023
Expenses
Up$311,364
Up $11,265 (+3.8%) from 2023
Net Income
Up$79,783
Up $16,005 (+25%) from 2023
Most recent year
2024 • Form 990XML pending. An XML filing is linked for this year, but detailed extraction is still pending.
The latest 2024 filing currently has linked XML that has not been fully parsed yet. Showing the latest detailed filing from 2022 below.
The mission of the mendham township library is to provide a vibrant and friendly community center that connects people of all ages with information, ideas and one another through professionally chosen resources and programs.
Mendham township library serves as the township library. It lends books, periodicals, audio/ visual media and provides access to the internet. It organizes informational sessions for children, teens and adults.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $192,292 | $224,812 | ▲ $32,520 |
| Savings and Temporary Cash Investments | $50,620 | $50,646 | ▲ $26 |
| Accounts Receivable | - | $0 | - |
| Other Notes and Loans Receivable, Net | - | $0 | - |
| Pledges and Grants Receivable | - | $0 | - |
| Receivable From Disqualified Prsn | - | $0 | - |
| Receivables From Officers Etc | - | $0 | - |
| Investments Other Securities | - | $0 | - |
| Investments Program Related | - | $0 | - |
| Investments in Publicly Traded Securities | - | $0 | - |
| Land, Buildings, and Equipment, Net | - | $0 | - |
| Intangible Assets | - | $0 | - |
| Inventories for Sale or Use | - | $0 | - |
| Prepaid Expenses and Deferred Charges | - | $0 | - |
| Total Assets | $242,912 | $275,458 | ▲ $32,546 |
| Other Assets Total | - | $0 | - |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $242,912 | $275,458 | ▲ $32,546 |
| Total Net Assets Fund Balance | $242,912 | $275,458 | ▲ $32,546 |
| Total Liabilities and Net Assets / Fund Balance | $242,912 | $275,458 | ▲ $32,546 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | - | $600,870 | $600,870 |
| Equipment | - | $94,129 | $94,129 |
| Name | Title |
|---|---|
| Morse Wilkenfeld | President |
| Caroline Oliveira | Trustee |
| Cindy Flannagan | Trustee |
| George Cannon | Trustee |
| Meredith Ogden | Trustee |
| Peter Colford | Trustee |
| Randi Case | Trustee |
| Megan Stolarski | Fundrais. Head |
| Hanneli Hudock | Secretary |
| Susanne Bernt | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $198,835 |
| Other Expenses | $92,649 |
| Total Fundraising Expense | $1,301 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $166,128 | $18,459 | - | $184,587 |
| Payroll Taxes | $12,823 | $1,425 | - | $14,248 |
| Occupancy | $7,700 | $2,893 | - | $10,593 |
| Fees for Services Other | - | $6,783 | - | $6,783 |
| Information Technology | $922 | $4,313 | - | $5,235 |
| Other Expenses | $12,000 | $1,662 | $1,301 | $1,662 |
| All Other Expenses | - | $839 | - | $839 |
| Advertising | $550 | - | - | $550 |
| Insurance | - | $263 | - | $263 |
| Office Expenses | - | $187 | - | $187 |
| Total Functional Expenses | $246,639 | $43,544 | $1,301 | $291,484 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $13,333 |
| Fundraising Direct Expenses | $6,855 |
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“The vice president of the board and a trustee member are married.”
“The form 990 is distributed to all board members before it is filed. The director and the board treasurer review the form.”
“No documents available to the public.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | MENDHAM TOWNSHIP LIBRARY SERVES AS THE TOWNSHIP LIBRARY. IT LENDS BOOKS, PERIODICALS, AUDIO/ VISUAL MEDIA AND PROVIDES ACCESS TO THE INTERNET. IT ORGANIZES INFORMATIONAL SESSIONS FOR CHILDREN, TEENS AND ADULTS. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 550 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 550 |
| IRS990/AllOtherContributionsAmt | 0 | 79997 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 839 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 839 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | false |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | RACHEL HARRISON |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9735434018 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 500 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BROOKSIDE |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NJ |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 07926 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 192292 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 224812 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 0 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 310356 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 51 |
| IRS990/CYOtherExpensesAmt | 0 | 92649 |
| IRS990/CYOtherRevenueAmt | 0 | 6478 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 7145 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 32546 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 198835 |
| IRS990/CYTotalExpensesAmt | 0 | 291484 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1301 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 324030 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 0 |
| IRS990/Desc | 0 | PUBLIC LIBRARY |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 14 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 246639 |
| IRS990/FamilyOrBusinessRlnInd | 0 | true |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 6783 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 6783 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| 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/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | 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/PersonNm | 0 | MEGAN STOLARSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | SUSANNE BERNT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | CINDY FLANNAGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MEREDITH OGDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | GEORGE CANNON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | RANDI CASE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PETER COLFORD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | HANNELI HUDOCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | CAROLINE OLIVEIRA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MORSE WILKENFELD |
| 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/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/TitleTxt | 0 | FUNDRAIS. HEAD |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | President |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1990 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/FundraisingDirectExpensesAmt | 0 | 6855 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 13333 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 230359 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 330885 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 4313 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 922 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 5235 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 263 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 263 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 51 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 51 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 694999 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 0 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 694999 |
| IRS990/LegalDomicileStateCd | 0 | NJ |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | false |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | MENDHAM TOWNSHIP LIBRARY SERVES AS THE TOWNSHIP LIBRARY. IT LENDS BOOKS, PERIODICALS, AUDIO/ VISUAL MEDIA AND PROVIDES ACCESS TO THE INTERNET. IT ORGANIZES INFORMATIONAL SESSIONS FOR CHILDREN, TEENS AND ADULTS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 242912 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 275458 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 6478 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 242912 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 275458 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 2893 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 7700 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 10593 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 187 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 187 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | PUBLIC LIBRARY MATERIALS |
| IRS990/OtherExpensesGrp/Desc | 1 | SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 2 | CONSORTIUM FEES |
| IRS990/OtherExpensesGrp/Desc | 3 | Postage and Shipping |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1301 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 6720 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 1662 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 38587 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 7929 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 12000 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 38587 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 15950 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 12000 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 1662 |
| IRS990/OtherRevenueTotalAmt | 0 | 0 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 18459 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 166128 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 184587 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 1425 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 12823 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 14248 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | MORSE WILKENFELD |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM SERVICE FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 7145 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 7145 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 332056 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 69205 |
| IRS990/PYOtherRevenueAmt | 0 | 9990 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 2992 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 76699 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 199134 |
| IRS990/PYTotalExpensesAmt | 0 | 268339 |
| IRS990/PYTotalRevenueAmt | 0 | 345038 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 32546 |
| IRS990/RegularMonitoringEnfrcInd | 0 | false |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 50620 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 50646 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 310356 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 332056 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 314390 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 348500 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 319059 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 1624361 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus1YearAmt | 0 | 93000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 93000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 93000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 93000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 372000 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 51 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 59 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 449 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 20 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 579 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.99970 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.99970 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 1996361 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 310356 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 425056 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 407390 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 441500 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 412059 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 1996361 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 1996940 |
| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 0 |
| 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 | true |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 94129 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 94129 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 600870 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 600870 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE VICE PRESIDENT OF THE BOARD AND A TRUSTEE MEMBER ARE MARRIED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE FORM 990 IS DISTRIBUTED TO ALL BOARD MEMBERS BEFORE IT IS FILED. THE DIRECTOR AND THE BOARD TREASURER REVIEW THE FORM. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | No documents available to the public. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section A, Line 2 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part VI, Section C, Line 19 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 242912 |
| IRS990/TotalAssetsEOYAmt | 0 | 275458 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 242912 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 275458 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 310356 |
| IRS990/TotalEmployeeCnt | 0 | 14 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 1301 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 43544 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 246639 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 291484 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 242912 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 275458 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 246639 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 7145 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 7196 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 324030 |
| IRS990/TotalVolunteersCnt | 0 | 20 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 242912 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 275458 |
| IRS990/TravelGrp/TotalAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | P O BOX 500 |
| IRS990/USAddress/CityNm | 0 | BROOKSIDE |
| IRS990/USAddress/StateAbbreviationCd | 0 | NJ |
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