Liabilities / Assets
59th percentile
Higher debt load relative to assets than 59% of similar nonprofits.
EIN 04-2939326 • 501(c)3 • North Chelmsford, MA
Profile
Lighthouse school is committed to upholding, protecting and advancing the best, long-term interest(s) of children in all of its policy development and service delivery systems. Lighthouse school does this by maintaining a very positive, supportive and growth-oriented culture for all staff and thereby maximizing their motivation to directly and indirectly provide the highest quality of comprehensive bioeducational services possible to as many children who could practically benefit from these services.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
59th percentile
Higher debt load relative to assets than 59% of similar nonprofits.
Liabilities / Revenue
62nd percentile
Higher debt load relative to revenue than 62% of similar nonprofits.
Net Margin
68th percentile
Higher net margin than 68% of similar nonprofits.
Top Officer Pay
74th percentile
Higher top officer pay than 74% of similar nonprofits.
Top officer pay equals 1.2% of source-year revenue.
Asset Growth
84th percentile
Faster asset growth than 84% of similar nonprofits.
Revenue Growth
48th percentile
Faster revenue growth than 48% of similar nonprofits.
Assets
Up$42,435,788
Up $7,796,720 (+23%) from 2024
Liabilities
Up$13,115,137
Up $2,268,943 (+21%) from 2024
Net Assets
Up$29,320,651
Up $5,527,777 (+23%) from 2024
Revenue
Up$29,744,579
Up $1,804,268 (+6.5%) from 2024
Expenses
Up$25,734,802
Up $1,368,313 (+5.6%) from 2024
Net Income
Up$4,009,777
Up $435,955 (+12%) from 2024
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Lighthouse school is committed to upholding, protecting and advancing the best, long-term interest(s) of children in all of its policy development and service delivery systems. Lighthouse school does this by maintaining a very positive, supportive and growth-oriented culture for all staff and thereby maximizing their motivation to directly and indirectly provide the highest quality of comprehensive bioeducational services possible to as many children who could practically benefit from these services.
Lighthouse school is committed to protecting and advancing the best, long-term interest of kids.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $12,942,949 | $14,541,275 | ▲ $1,598,326 |
| Land, Buildings, and Equipment, Net | $11,034,082 | $14,118,432 | ▲ $3,084,350 |
| Savings and Temporary Cash Investments | $7,899,948 | $10,188,813 | ▲ $2,288,865 |
| Accounts Receivable | $1,643,158 | $2,280,916 | ▲ $637,758 |
| Prepaid Expenses and Deferred Charges | $144,119 | $451,071 | ▲ $306,952 |
| Total Assets | $34,639,068 | $42,435,788 | ▲ $7,796,720 |
| Other Assets Total | $974,812 | $855,281 | ▼ $119,531 |
| Liabilities | |||
| Mortgage Notes Payable Secured by Investment Property | $6,541,939 | $9,736,681 | ▲ $3,194,742 |
| Accounts Payable and Accrued Expenses | $3,797,261 | $2,875,989 | ▼ $921,272 |
| Other Liabilities | $461,598 | $338,510 | ▼ $123,088 |
| Deferred Revenue | $45,396 | $163,957 | ▲ $118,561 |
| Total Liabilities | $10,846,194 | $13,115,137 | ▲ $2,268,943 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $23,792,874 | $29,320,651 | ▲ $5,527,777 |
| Total Net Assets Fund Balance | $23,792,874 | $29,320,651 | ▲ $5,527,777 |
| Total Liabilities and Net Assets / Fund Balance | $34,639,068 | $42,435,788 | ▲ $7,796,720 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $12,981,115 | $2,338,906 | $15,320,021 |
| Equipment | $507,317 | $1,048,273 | $1,555,590 |
| Leasehold Improvements | $381,365 | $522,231 | $903,596 |
| Land | $217,000 | - | $217,000 |
| Other Land Buildings | $31,635 | $75,270 | $106,905 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Dr Scott Bartis | Chief Executive Officer | FT | $240,633 | $124,235 | $364,868 |
| Suzanne Grecco | Chief Financial Officer | FT | $234,436 | $120,793 | $355,229 |
| Dr Michael Pappafagos | Program Advisor | FT | $211,678 | $124,441 | $336,119 |
| Emily Hack | Director of Education | FT | $182,092 | $88,318 | $270,410 |
| Dorothy Pepin | Chief Administrative Officer | FT | $195,600 | $55,104 | $250,704 |
| Peter Lang | Director of Program Operations | FT | $161,650 | $84,027 | $245,677 |
| Rick Kilmartin | Coord for Treatment Amplification | FT | $150,380 | $83,714 | $234,094 |
| John Tarmey | Director of Operations | FT | $189,407 | $35,259 | $224,666 |
| Name | Title |
|---|---|
| William Logan | Chairman/director |
| Edward Vitiello | Clerk/director |
| Sean Duffy | Director |
| Steven Stromvall | Director |
| Albert Jussaume | Treasurer/director |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $22,187,032 |
| Other Expenses | $3,547,770 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $14,926,035 | $493,539 | - | $15,419,574 |
| Other Employee Benefits | $2,544,026 | $308,317 | - | $2,852,343 |
| Pension Plan Contributions | $1,560,545 | $160,255 | - | $1,720,800 |
| Payroll Taxes | $1,407,057 | $92,153 | - | $1,499,210 |
| Occupancy | $1,112,619 | $24,221 | - | $1,136,840 |
| Current Officers, Directors, Trustees, and Key Employees | $198,108 | $496,997 | - | $695,105 |
| Depreciation Depletion | $478,195 | $24,150 | - | $502,345 |
| All Other Expenses | $174,562 | $104,711 | - | $279,273 |
| Fees for Services Other | $274,522 | $1,206 | - | $275,728 |
| Interest | $264,967 | $7,769 | - | $272,736 |
| Insurance | $156,744 | $4,626 | - | $161,370 |
| Advertising | $91,869 | $2,711 | - | $94,580 |
| Fees for Service Investment Mgmnt Fees | - | $94,320 | - | $94,320 |
| Travel | $79,820 | $844 | - | $80,664 |
| Fees for Services Accounting | - | $79,770 | - | $79,770 |
| Other Expenses | $41,957 | $1,238 | - | $43,195 |
| Fees for Services Legal | - | $21,875 | - | $21,875 |
| Conferences and Meetings | $19,959 | $589 | - | $20,548 |
| Total Functional Expenses | $23,811,459 | $1,923,343 | $0 | $25,734,802 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $25,734,802 |
| Expenses per Audited Statements | $25,640,482 |
| Total Expenses per Audited Statements | $25,640,482 |
| Expenses Not Reported on Financial Statements | $94,320 |
| Expenses Not Reported on Form 990 | $0 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Lease Obligations | $338,510 |
“Upon completion of the form 990, a draft is reviewed by the organization's ceo, cfo and the cpa firm's managing director and manager. The audit and finance committee then meets to formulate its recommendations. A meeting is then held by the entire board of directors. At the conclusion of this process, the board makes a final determination on the form 990.”
“The spirit of the conflict of interest policy is deeply imbedded in the philosophy and operating principles of the organization. A carefully crafted system of checks and balances ensures that any evidence of conflicts of interest would be readily accessible to other members of the governance team. In addition, all participants are fully informed about the incompatibility of conflicts of interest to the integrity of the organization. Consequently, matters involving conflicts of interest are generally non-existent.”
“The board of directors has within it a variety of standing committees. One such committee is the compensation and evaluation committee. It is the sole responsibility of this committee to conduct on an annual basis a thorough evaluation of the ceo's performance, including written goals and written descriptions pertaining to the achievements or lack thereof of those goals. In addition, the compensation and evaluation committee undertakes a formal process of comparable compensation assessment analysis. Included in this analysis are the recommendations from an independent compensation specialist who provides recommendations to the board regarding appropriate compensation relative to other compensation packages of similar organizations nationwide. The compensation and evaluation committee then determines final compensation recommendations that are presented to the entire board of directors for consideration and final determination. The organization maintains contemporaneous substantiation of the deliberation and decision.”
“Our forms 990 (current and prior three years) are available on the official website of the attorney general of massachusetts at https://masscharities.my.site.com/filingsearch/s/ and guidestar at www.guidestar.org. We also make our form 990, form 1023, form 990-t, articles of incorporation, and bylaws available to the public upon request. Our audited financial statements are also available on the official website of the attorney general of massachusetts at: https://masscharities.my.site.com/filingsearch/s/ in addition, various other governing documents are also available at the official website of the secretary of state of massachusetts at: www.corp.sec.state.ma.us/corpweb/corpsearch/corpsearch.aspx”
“The governing documents, conflict of interest policy, and financial statements are all readily accessible to the public in a variety of ways. First, as a 501(c)(3) organization, the irs is provided with such documents as organizational articles of incorporation and organization bylaws. In addition, the irs as a representative of the federal branch of government receives an annual form 990 and the commonwealth of massachusetts operational services division, as a representative of the state branch of government annually receives the uniform financial report inclusive of audited financial statements. In addition, the massachusetts attorney general's office receives a copy of form pc (public charities) report, which also includes form 990. Finally, the town of chelmsford, as a representative of the local branch of government, annually receives form 3abc, which includes a complete copy of the form pc. All requests for additional documentation are also promptly complied with.”
“The school accounts for the effect of any uncertain tax positions based on a "more likely than not" threshold to the recognition of the tax positions being sustained based on the technical merits of the position under scrutiny by the applicable taxing authority. If a tax position or positions are deemed to result in uncertainties of those positions, the unrecognized tax benefit is estimated based on a "cumulative probability assessment" that aggregates the estimated tax liability for all uncertain tax positions. The school has identified its tax status as a tax-exempt entity and its determination of which income is related and unrelated as its only significant tax positions and has determined that such tax positions do not result in uncertainty requiring recognition. The school is not currently under examination by any taxing jurisdiction. The school's federal and state income tax returns are generally open for examination for three years after the date filed.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 3797261 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 2875989 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1643158 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 2280916 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | LIGHTHOUSE SCHOOL IS COMMITTED TO PROTECTING AND ADVANCING THE BEST, LONG-TERM INTEREST OF KIDS. |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 2711 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 91869 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 94580 |
| IRS990/AllOtherContributionsAmt | 0 | 125 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 104711 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 174562 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 279273 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | SUZANNE GRECCO CFO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9782514050 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 25 WELLMAN AVENUE |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NORTH CHELMSFORD |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 018631334 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 496997 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 198108 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 695105 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 589 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 19959 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 20548 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 125 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 468839 |
| IRS990/CYOtherExpensesAmt | 0 | 3547770 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 29275615 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 4009777 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 22187032 |
| IRS990/CYTotalExpensesAmt | 0 | 25734802 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 29744579 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 45396 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 163957 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 24150 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 478195 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 502345 |
| IRS990/Desc | 0 | COMPREHENSIVE SERVICES PROGRAM, SERVING PSYCHO-EDUCATIONAL NEEDS OF STUDENTS WITH MULTI-DISABILITY CONDITIONS, BOTH ACADEMICALLY AND THERAPEUTICALLY. LIGHTHOUSE SCHOOL, INC. HAS BEEN IN OPERATION SINCE 1967 AS A PRIVATE, NOT-FOR-PROFIT (501(C)(3)), CHAPTER 766 APPROVED HUMAN SERVICE CORPORATION SERVING THE NEEDS OF STUDENTS HAVING A BROAD RANGE OF DISABLING CONDITIONS. LIGHTHOUSE SCHOOL OPERATES ACCORDING TO A COMPREHENSIVE BIODEVELOPMENTAL SERVICES MODEL, MEANING SERVICES DESIGNED TO PROMOTE TOTAL LIFE DEVELOPMENT ARE PROVIDED DURING THE DAY, EVENINGS, AND WEEKENDS, BOTH ON-SITE AND IN THE HOME COMMUNITIES OF ATTENDING STUDENTS. ENROLLED STUDENTS RESIDE IN MANY OF THE CITIES AND TOWNS OF EASTERN MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE, AND ARE TRANSPORTED TO AND FROM LIGHTHOUSE SCHOOL DAILY BY THE AUTHORITY OF THE SPECIAL EDUCATION DEPARTMENTS OF THEIR RESPECTIVE COMMUNITIES. ALL ACADEMIC, THERAPEUTIC AND LIFE PREPARATORY EXPERIENCES AT LIGHTHOUSE SCHOOL ARE PLANNED AND PROVIDED ACCORDING TO THE INDIVIDUALIZED NEEDS OF EACH ENROLLED STUDENT. THESE NEEDS ARE MET BY SERVICES THAT ARE WITHIN THE FRAMEWORK OF APEX BIOEDUCATION. LIGHTHOUSE SCHOOL DELIVERS A SPECIFIC ARRAY OF SERVICES ACCORDING TO EACH STUDENT'S UNIQUE PROFILE. THE COMPREHENSIVE BIODEVELOPMENTAL SERVICES MODEL OFFERS AN INTERDISCIPLINARY MENU FROM WHICH AN INDIVIDUALIZED TREATMENT PLAN IS DEVELOPED. FACULTY COMMUNICATE EXTENSIVELY SO THAT QUALITY AND CONSISTENCY CHARACTERIZE ALL STUDENT INTERACTIONS. FACULTY ARE TRAINED TO WORK TOGETHER AS A SYNERGISTIC TREATMENT TEAM IN ORDER TO MAXIMIZE THE QUALITY AND EFFECTIVENESS OF SERVICES. LIGHTHOUSE SCHOOL IS COMMITTED TO PROVIDING SERVICES TO STUDENTS WITH DIVERSE NEEDS AND DISABILITIES. STUDENTS WHO ATTEND LIGHTHOUSE SCHOOL RANGE IN AGE FROM 3-22 YEARS OF AGE AND HAVE A VARIETY OF TYPES OF SPECIAL NEEDS, INCLUDING DEVELOPMENTAL/NEUROLOGICAL CONDITIONS, MEDICAL/GENETIC CONDITIONS, LEARNING DISABILITIES AND PSYCHIATRIC DIAGNOSES.ACADEMIC EDUCATION IS CERTAINLY IMPORTANT. HOWEVER, FOR THE STUDENT POPULATION AT LIGHTHOUSE SCHOOL IT IS NOT ENOUGH. AT LIGHTHOUSE SCHOOL THERE IS A BROAD RANGE OF CURRICULUM-BASED, INTERDISCIPLINARY SERVICES WHICH INCLUDE EDUCATIONAL, VOCATIONAL, COMMUNICATION, CLINICAL, NEUROMOTOR AND MEDICAL SERVICES. THESE SERVICES DO NOT SIMPLY WORK ALONG SIDE OF EACH OTHER. RATHER, THEY ARE INTEGRATED INTO AN APPROACH CALLED APEX BIOEDUCATION, WHICH PRODUCES A MORE POWERFUL TECHNICAL INTERVENTION RESULTING IN POSITIVE BIODEVELOPMENT THAN ANY SERVICE ALONE COULD PRODUCE. LIGHTHOUSE SCHOOL HAS SERVED OVER 100 COMMUNITIES IN EASTERN MASSACHUSETTS, MAINE, AND SOUTHERN NEW HAMPSHIRE. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 210 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 23811459 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 79770 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 79770 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 21875 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 21875 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 1206 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 274522 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 275728 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 94320 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 94320 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | 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/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 | 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 | 120798 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 53027 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 119566 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 121660 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 84881 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 82214 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 32971 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 81470 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | WILLIAM LOGAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ALBERT JUSSAUME |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | EDWARD VITIELLO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | STEVEN STROMVALL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | SEAN DUFFY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DR SCOTT BARTIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | DOROTHY PEPIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | SUZANNE GRECCO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | DR MICHAEL PAPPAFAGOS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | EMILY HACK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | PETER LANG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JOHN TARMEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | RICK KILMARTIN |
| 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 | 244070 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 197677 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 235663 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 214459 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 185529 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 163463 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 191695 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 152624 |
| 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/TitleTxt | 0 | CHAIRMAN/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | CLERK/DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | CHIEF EXECUTIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | CHIEF ADMINISTRATIVE OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | CHIEF FINANCIAL OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | PROGRAM ADVISOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR OF EDUCATION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR OF PROGRAM OPERATIONS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | DIRECTOR OF OPERATIONS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | COORD FOR TREATMENT AMPLIFICATION |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1986 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 29744579 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 5 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 49 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 4626 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 156744 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 161370 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 7769 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 264967 |
| IRS990/InterestGrp/TotalAmt | 0 | 272736 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 468839 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 468839 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 12942949 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 14541275 |
| IRS990/IRPDocumentCnt | 0 | 18 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 3984680 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 11034082 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 14118432 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 18103112 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | LIGHTHOUSE SCHOOL IS COMMITTED TO UPHOLDING, PROTECTING AND ADVANCING THE BEST, LONG-TERM INTEREST(S) OF CHILDREN IN ALL OF ITS POLICY DEVELOPMENT AND SERVICE DELIVERY SYSTEMS. LIGHTHOUSE SCHOOL DOES THIS BY MAINTAINING A VERY POSITIVE, SUPPORTIVE AND GROWTH-ORIENTED CULTURE FOR ALL STAFF AND THEREBY MAXIMIZING THEIR MOTIVATION TO DIRECTLY AND INDIRECTLY PROVIDE THE HIGHEST QUALITY OF COMPREHENSIVE BIOEDUCATIONAL SERVICES POSSIBLE TO AS MANY CHILDREN WHO COULD PRACTICALLY BENEFIT FROM THESE SERVICES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 6541939 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 9736681 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 23792874 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 29320651 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 1518000 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 23792874 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 29320651 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 24221 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 1112619 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1136840 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 974812 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 855281 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 308317 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 2544026 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 2852343 |
| IRS990/OtherExpensesGrp/Desc | 0 | SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 1 | MEALS |
| IRS990/OtherExpensesGrp/Desc | 2 | EQUIP. RENTAL & MAINT. |
| IRS990/OtherExpensesGrp/Desc | 3 | TELEPHONE |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 656 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 3396 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 1238 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 215266 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 150138 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 115070 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 41957 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 215922 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 150138 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 118466 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 43195 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 461598 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 338510 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 493539 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 14926035 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 15419574 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 92153 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 1407057 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 1499210 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 160255 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 1560545 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 1720800 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 144119 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 451071 |
| IRS990/PrincipalOfficerNm | 0 | DR SCOTT BARTIS |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611110 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611110 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TUITION REVENUE |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | ADMINISTRATIVE INCOME |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 28942007 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 333608 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 28942007 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 333608 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 5150 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 314907 |
| IRS990/PYOtherExpensesAmt | 0 | 3092224 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 27620254 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 3573822 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 21274265 |
| IRS990/PYTotalExpensesAmt | 0 | 24366489 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 27940311 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 4009777 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 29275615 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 7899948 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 10188813 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 12981115 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 2338906 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 15320021 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 507317 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 1048273 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 1555590 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 94320 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 25640482 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/InvestmentExpensesNotIncld2Amt | 0 | 94320 |
| IRS990ScheduleD/InvestmentExpensesNotIncldAmt | 0 | 94320 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 217000 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 217000 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 381365 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 522231 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 903596 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 1518000 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 31635 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 75270 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 106905 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 338510 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | LEASE OBLIGATIONS |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 1518000 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 94320 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 29650259 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE SCHOOL ACCOUNTS FOR THE EFFECT OF ANY UNCERTAIN TAX POSITIONS BASED ON A "MORE LIKELY THAN NOT" THRESHOLD TO THE RECOGNITION OF THE TAX POSITIONS BEING SUSTAINED BASED ON THE TECHNICAL MERITS OF THE POSITION UNDER SCRUTINY BY THE APPLICABLE TAXING AUTHORITY. IF A TAX POSITION OR POSITIONS ARE DEEMED TO RESULT IN UNCERTAINTIES OF THOSE POSITIONS, THE UNRECOGNIZED TAX BENEFIT IS ESTIMATED BASED ON A "CUMULATIVE PROBABILITY ASSESSMENT" THAT AGGREGATES THE ESTIMATED TAX LIABILITY FOR ALL UNCERTAIN TAX POSITIONS. THE SCHOOL HAS IDENTIFIED ITS TAX STATUS AS A TAX-EXEMPT ENTITY AND ITS DETERMINATION OF WHICH INCOME IS RELATED AND UNRELATED AS ITS ONLY SIGNIFICANT TAX POSITIONS AND HAS DETERMINED THAT SUCH TAX POSITIONS DO NOT RESULT IN UNCERTAINTY REQUIRING RECOGNITION. THE SCHOOL IS NOT CURRENTLY UNDER EXAMINATION BY ANY TAXING JURISDICTION. THE SCHOOL'S FEDERAL AND STATE INCOME TAX RETURNS ARE GENERALLY OPEN FOR EXAMINATION FOR THREE YEARS AFTER THE DATE FILED. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 14118432 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 25734802 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 338510 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 29744579 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 31168259 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 25640482 |
| IRS990ScheduleE/ComplianceWithRevProc7550Ind | 0 | 1 |
| IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceAthltProgInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceEducPlcyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceOtherActyInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceSchsInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd | 0 | 0 |
| IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd | 0 | 0 |
| IRS990ScheduleE/GovernmentFinancialAidRcvdInd | 0 | 1 |
| IRS990ScheduleE/GovernmentFinancialAidRvkdInd | 0 | 0 |
| IRS990ScheduleE/MaintainCpyOfAllSolInd | 0 | 0 |
| IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd | 0 | 1 |
| IRS990ScheduleE/MaintainRacialCompRecsInd | 0 | 1 |
| IRS990ScheduleE/MaintainScholarshipsRecsInd | 0 | 1 |
| IRS990ScheduleE/NondiscriminatoryPolicyStmtInd | 0 | 1 |
| IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd | 0 | 1 |
| IRS990ScheduleE/PolicyStmtInBrochuresEtcInd | 0 | 1 |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 0 | THE SCHOOL DOES NOT SOLICIT STUDENTS; THE SCHOOL ACCEPTS ALL STUDENTS ELIGIBLE FOR ASSISTANCE. AN ADVERTISEMENT IS PLACED ON WWW.INDEED.COM, STATING OUR NON-DISCRIMINATORY POLICY. |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 1 | THE SCHOOL DOES NOT SOLICIT CONTRIBUTIONS. HOWEVER, IT DOES RECEIVE INFREQUENT CONTRIBUTIONS, ON AN IRREGULAR BASIS. |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 2 | THE SCHOOL'S STUDENTS ARE SUPPORTED BY MA AND NH CITIES AND TOWNS AND VARIOUS AGENCIES OF BOTH STATES. IN ADDITION, TUITION REVENUE RATES ARE AUTHORIZED BY THE OPERATIONAL SERVICES DIVISION OF THE COMMONWEALTH OF MA AND THE SCHOOL IS SUBJECT TO THE REGULATIONS AND RATE FORMULAS OF THE MA O.S.D. |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE E, PART I, LINE 3 |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | SCHEDULE E, PART I, LINE 4 |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | SCHEDULE E, PART I, LINE 6 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 0 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompensationCommitteeInd | 0 | X |
| IRS990ScheduleJ/CompensationSurveyInd | 0 | X |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/Form990OfOtherOrganizationsInd | 0 | X |
| IRS990ScheduleJ/IndependentConsultantInd | 0 | X |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 240633 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 234436 |
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