Liabilities / Assets
88th percentile
Higher debt load relative to assets than 88% of similar nonprofits.
EIN 52-1041717 • 501(c)3 • Potomac, MD
Profile
The harbor school embraces the uniqueness of each young child and teaches students to celebrate this in themselves and each other. Our holistic approach nurtures confident, kind and capable learners.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
88th percentile
Higher debt load relative to assets than 88% of similar nonprofits.
Liabilities / Revenue
89th percentile
Higher debt load relative to revenue than 89% of similar nonprofits.
Net Margin
36th percentile
Higher net margin than 36% of similar nonprofits.
Top Officer Pay
90th percentile
Higher top officer pay than 90% of similar nonprofits.
Top officer pay equals 10.2% of source-year revenue.
Asset Growth
47th percentile
Faster asset growth than 47% of similar nonprofits.
Revenue Growth
21st percentile
Faster revenue growth than 21% of similar nonprofits.
Assets
Up$3,137,049
Up $73,153 (+2.4%) from 2023
Liabilities
Up$2,199,490
Up $92,574 (+4.4%) from 2023
Net Assets
Down$937,559
Down $19,421 (-2.0%) from 2023
Revenue
Down$2,009,973
Down $278,060 (-12%) from 2023
Expenses
Down$2,029,394
Down $257,029 (-11%) from 2023
Net Income
Down-$19,421
Down $21,031 (-1306%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
The harbor school embraces the uniqueness of each young child (age 2 to grade 2), and we teach our students to celebrate it in themselves and each other
The harbor school embraces the uniqueness of each young child and teaches students to celebrate this in themselves and in each other. Our holistic approach nurtures confident, kind, and capable learners.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Accounts Receivable | $1,547,823 | $1,648,948 | ▲ $101,125 |
| Savings and Temporary Cash Investments | $1,335,949 | $1,345,678 | ▲ $9,729 |
| Prepaid Expenses and Deferred Charges | $32,232 | $51,787 | ▲ $19,555 |
| Land, Buildings, and Equipment, Net | $37,113 | $29,814 | ▼ $7,299 |
| Cash and Non-Interest-Bearing Accounts | $59,797 | $18,776 | ▼ $41,021 |
| Pledges and Grants Receivable | $0 | - | - |
| Total Assets | $3,063,896 | $3,137,049 | ▲ $73,153 |
| Other Assets Total | $50,982 | $42,046 | ▼ $8,936 |
| Liabilities | |||
| Deferred Revenue | $1,803,285 | $1,926,425 | ▲ $123,140 |
| Mortgage Notes Payable Secured by Investment Property | $150,000 | $150,000 | → $0 |
| Accounts Payable and Accrued Expenses | $124,062 | $101,852 | ▼ $22,210 |
| Other Liabilities | $29,569 | $21,213 | ▼ $8,356 |
| Total Liabilities | $2,106,916 | $2,199,490 | ▲ $92,574 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $905,896 | $847,224 | ▼ $58,672 |
| Net Assets With Donor Restrictions | $51,084 | $90,335 | ▲ $39,251 |
| Total Net Assets Fund Balance | $956,980 | $937,559 | ▼ $19,421 |
| Total Liabilities and Net Assets / Fund Balance | $3,063,896 | $3,137,049 | ▲ $73,153 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $6,258 | $245,921 | $252,179 |
| Other Land Buildings | $19,752 | $74,342 | $94,094 |
| Leasehold Improvements | $3,804 | $7,835 | $11,639 |
| Land | $0 | - | - |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Leah Musico | Head of School | FT | $200,156 | $5,784 | $205,940 |
| Leah Musico | - | - | $200,156 | $5,784 | $205,940 |
| Andrea Zuraf | Director of Admissions & Marketing | FT | $99,609 | $10,564 | $110,173 |
| Dana Riley | Business Officer | FT | $102,131 | $3,815 | $105,946 |
| Name | Title |
|---|---|
| Suzanne Miyamoto | Chair |
| Melanie Pellegrini | Hspa President, Trustee |
| Eileen Pennington | Vice Chair |
| Andrea Dugas | Trustee |
| Jamie Danielson | Trustee |
| Mark Giragosian | Trustee |
| Naomi Senkeeto | Trustee |
| Natasha Bhalla | Trustee |
| Oliver Baron | Trustee |
| Shivonne Jones | Trustee |
| Vik Uberoi | Trustee |
| Zeynep Orhan | Trustee |
| Lauren Collogan | Secretary |
| Matthew Grabler | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $1,497,853 |
| Other Expenses | $531,541 |
| Total Fundraising Expense | $55,934 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $723,082 | $252,360 | $5,676 | $981,118 |
| Current Officers, Directors, Trustees, and Key Employees | $242,459 | $86,616 | $3,324 | $332,399 |
| Occupancy | $258,893 | $13,626 | $0 | $272,519 |
| Payroll Taxes | $68,126 | $26,431 | $700 | $95,257 |
| All Other Expenses | $45,863 | $29,427 | $0 | $75,290 |
| Other Employee Benefits | $48,530 | $18,822 | $495 | $67,847 |
| Pension Plan Contributions | $15,228 | $5,870 | $134 | $21,232 |
| Insurance | $14,647 | $771 | $0 | $15,418 |
| Other Expenses | $10,116 | $375 | $4,806 | $15,297 |
| Depreciation Depletion | $13,382 | $704 | $0 | $14,086 |
| Information Technology | $5,871 | $8,128 | $0 | $13,999 |
| Advertising | $0 | $13,111 | $0 | $13,111 |
| Interest | $7,333 | $386 | $0 | $7,719 |
| Conferences and Meetings | $0 | $3,809 | $0 | $3,809 |
| Office Expenses | $0 | $2,624 | $0 | $2,624 |
| Total Functional Expenses | $1,483,249 | $490,211 | $55,934 | $2,029,394 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $2,054,688 |
| Expenses per Audited Statements | $2,029,394 |
| Total Expenses per Form 990 | $2,029,394 |
| Expenses Not Reported on Form 990 | $25,294 |
| Line Item | Amount |
|---|---|
| Fundraising Direct Expenses | $25,294 |
| Fundraising Gross Income | $10,350 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Annual Gala | $63,989 | $10,350 | $3,290 | $7,060 |
| None | - | - | - | - |
| Total Events | $63,989 | $10,350 | $25,294 | $-14,944 |
| Liability | Amount |
|---|---|
| Operating Lease Liability | $21,213 |
“The governing board reviews the 990 draft before it is finalized.”
“On an annual basis, each member of the board of trustees is required to sign a conflict of interest statement which acknowledges that board members receipt of the harbor school board of trustees code of conduct. By signing, the board member acknowledges that they will comply with the spirit and intent of the resolution and agrees to report promptly to the chair of the board of trustees any possible conflicts that may develop before completion of the next annual statement. Board members are also asked to indicate whether they are parents, grandparents or guardians of current students at the school.”
“The board of trustees has the responsibility of evaluating the head of school. The review includes survey information from faculty and staff. The executive committee determines compensation. In determining compensation for other key officials, the head of school performs an informal market survey.”
“SAME EXPLANATION AS 15A”
“The school makes all documents available to the public upon request.”
“Expenses of $25,294 from fundraising events is included on part viii, line 8b”
“Management evaluates uncertainty in income tax positions based on a more-likely-than-not recognition standard. If that threshold is met, the tax position is then measured at the largest amount that is greater than 50% likely of being realized upon ultimate settlement. As of june 30, 2024 and 2023, there are no accruals for uncertain tax positions. If applicable, the school records interest and penalties as a component of income tax expense. With few exceptions, the schools returns remain open for three years for federal and state examinations.”
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/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 124062 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 101852 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1547823 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 1648948 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE HARBOR SCHOOL EMBRACES THE UNIQUENESS OF EACH YOUNG CHILD AND TEACHES STUDENTS TO CELEBRATE THIS IN THEMSELVES AND IN EACH OTHER. OUR HOLISTIC APPROACH NURTURES CONFIDENT, KIND, AND CAPABLE LEARNERS. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 0 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 13111 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 13111 |
| IRS990/AllOtherContributionsAmt | 0 | 124771 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 29427 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 45863 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 75290 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DANA RILEY |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3013651100 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 11510 FALLS ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | POTOMAC |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MD |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 20854 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 59797 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 18776 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 3324 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 86616 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 242459 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 332399 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 3809 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 3809 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContriRptFundraisingEventAmt | 0 | 53639 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 178410 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 56908 |
| IRS990/CYOtherExpensesAmt | 0 | 531541 |
| IRS990/CYOtherRevenueAmt | 0 | -5862 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 1780517 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -19421 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 1497853 |
| IRS990/CYTotalExpensesAmt | 0 | 2029394 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 55934 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 2009973 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 1803285 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 1926425 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 704 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 13382 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 14086 |
| IRS990/Desc | 0 | THE SCHOOL PROVIDES A DYNAMIC, INNOVATIVE ACADEMIC EXPERIENCE FOR YOUNG CHILDREN IN PRESCHOOL THROUGH THIRD GRADE. ITS INQUIRY-BASED APPROACH UNDERLIES ALL THAT THEY DO, PROVIDNG A SOLID FOUNDATION UPON WHICH A LIFETIME OF LEARNING BEGINS. DURING THE YEAR UNDER REVIEW, THE SCHOOL FOCUSED ON THE TOPIC OF NAUTICAL EXPLORATIONS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 51084 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 90335 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 39 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 1483249 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| 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/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | 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/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 5784 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 10564 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 3815 |
| 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 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LEAH MUSICO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ANDREA ZURAF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DANA RILEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | SUZANNE MIYAMOTO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | EILEEN PENNINGTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MATTHEW GRABLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | LAUREN COLLOGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | NATASHA BHALLA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | JAMIE DANIELSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | ANDREA DUGAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | OLIVER BARON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MARK GIRAGOSIAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | SHIVONNE JONES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ZEYNEP ORHAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | MELANIE PELLEGRINI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | NAOMI SENKEETO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | VIK UBEROI |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 200156 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 99609 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 102131 |
| 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 |
| 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/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/TitleTxt | 0 | HEAD OF SCHOOL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR OF ADMISSIONS & MARKETING |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | BUSINESS OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | HSPA PRESIDENT, TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TRUSTEE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1975 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 53639 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 25294 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 10350 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 14 |
| IRS990/GrantAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 2035267 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 14 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 0 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 8128 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 5871 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 13999 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 0 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 771 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 14647 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 15418 |
| IRS990/InterestGrp/FundraisingAmt | 0 | 0 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 386 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 7333 |
| IRS990/InterestGrp/TotalAmt | 0 | 7719 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 56908 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 56908 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 6 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 328098 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 37113 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 29814 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 357912 |
| IRS990/LegalDomicileStateCd | 0 | MD |
| 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 | THE HARBOR SCHOOL EMBRACES THE UNIQUENESS OF EACH YOUNG CHILD AND TEACHES STUDENTS TO CELEBRATE THIS IN THEMSELVES AND IN EACH OTHER. OUR HOLISTIC APPROACH NURTURES CONFIDENT, KIND, AND CAPABLE LEARNERS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 150000 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 150000 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 956980 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 937559 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -14944 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -14944 |
| IRS990/NetIncmFromFundraisingEvtGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 905896 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 847224 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 13626 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 258893 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 272519 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 2624 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 2624 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 50982 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 42046 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 495 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 18822 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 48530 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 67847 |
| IRS990/OtherExpensesGrp/Desc | 0 | PARENTS ASSOCIATION |
| IRS990/OtherExpensesGrp/Desc | 1 | PROFESSIONAL SERVICES |
| IRS990/OtherExpensesGrp/Desc | 2 | SCHOOL MATERIALS & SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 3 | SPECIAL FUNCTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 40799 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 4806 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 27151 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 375 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 4200 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 25519 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 10116 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 40799 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 31351 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 25519 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 15297 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 29569 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 21213 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 999999 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 0 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 9082 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 9082 |
| IRS990/OtherRevenueMiscGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/OtherRevenueTotalAmt | 0 | 9082 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 5676 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 252360 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 723082 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 981118 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 700 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 26431 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 68126 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 95257 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 134 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 5870 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 15228 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 21232 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 32232 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 51787 |
| IRS990/PrincipalOfficerNm | 0 | DANA RILEY |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 611600 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | ENRICHMENT PROGRAM |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | SUMMER CAMP |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 1 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 2 | 0 |
| IRS990/ProgramServiceRevenueGrp/ExclusionAmt | 3 | 0 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1583906 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 94693 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 44175 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 57743 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 1 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 2 | 0 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 3 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 107807 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 40157 |
| IRS990/PYOtherExpensesAmt | 0 | 535468 |
| IRS990/PYOtherRevenueAmt | 0 | 24837 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1930597 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 1610 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 1566320 |
| IRS990/PYTotalExpensesAmt | 0 | 2101788 |
| IRS990/PYTotalRevenueAmt | 0 | 2103398 |
| IRS990/QuidProQuoContributionsInd | 0 | true |
| IRS990/QuidProQuoContriDisclInd | 0 | true |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -19421 |
| 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 |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 1780517 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1335949 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1345678 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 0 |
| IRS990ScheduleA/SchoolInd | 0 | X |
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