Liabilities / Assets
78th percentile
Higher debt load relative to assets than 78% of similar nonprofits.
EIN 57-0921126 • 501(c)3 • Spartanburg, SC
Profile
The primary mission of oakbrook preparatory school is to provide a christian liberal arts education for children from kindergarten through twelth grade.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
78th percentile
Higher debt load relative to assets than 78% of similar nonprofits.
Liabilities / Revenue
78th percentile
Higher debt load relative to revenue than 78% of similar nonprofits.
Net Margin
16th percentile
Higher net margin than 16% of similar nonprofits.
Top Officer Pay
49th percentile
Higher top officer pay than 49% of similar nonprofits.
Top officer pay equals 2.1% of source-year revenue.
Asset Growth
10th percentile
Faster asset growth than 10% of similar nonprofits.
Revenue Growth
23rd percentile
Faster revenue growth than 23% of similar nonprofits.
Assets
Down$7,415,417
Down $944,605 (-11%) from 2023
Liabilities
Down$3,419,077
Down $221,528 (-6.1%) from 2023
Net Assets
Down$3,996,340
Down $723,077 (-15%) from 2023
Revenue
Down$5,347,143
Down $423,143 (-7.3%) from 2023
Expenses
Up$6,088,895
Up $215,660 (+3.7%) from 2023
Net Income
Down-$741,752
Down $638,803 (-621%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
Built on a foundation of Christian faith, Oakbrook Preparatory School educates students to be independent learners in a changing world.
Built on a foundation of Christian faith Oakbrook Preparatory School educates students to be independent learners in a changing world
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $6,969,438 | $6,627,555 | ▼ $341,883 |
| Savings and Temporary Cash Investments | $600,346 | $491,517 | ▼ $108,829 |
| Cash and Non-Interest-Bearing Accounts | $204,272 | $179,737 | ▼ $24,535 |
| Accounts Receivable | $112,139 | $89,872 | ▼ $22,267 |
| Intangible Assets | $15,318 | $13,985 | ▼ $1,333 |
| Prepaid Expenses and Deferred Charges | $46,116 | $12,751 | ▼ $33,365 |
| Total Assets | $8,360,022 | $7,415,417 | ▼ $944,605 |
| Other Assets Total | $412,393 | - | - |
| Liabilities | |||
| Mortgage Notes Payable Secured by Investment Property | $3,125,977 | $2,992,043 | ▼ $133,934 |
| Accounts Payable and Accrued Expenses | $351,360 | $334,286 | ▼ $17,074 |
| Deferred Revenue | $163,268 | $92,748 | ▼ $70,520 |
| Total Liabilities | $3,640,605 | $3,419,077 | ▼ $221,528 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $4,593,096 | $3,996,340 | ▼ $596,756 |
| Net Assets With Donor Restrictions | $126,321 | - | - |
| Total Net Assets Fund Balance | $4,719,417 | $3,996,340 | ▼ $723,077 |
| Total Liabilities and Net Assets / Fund Balance | $8,360,022 | $7,415,417 | ▼ $944,605 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $1,852,764 | $5,765,284 | $7,618,048 |
| Other Land Buildings | $2,552,301 | - | $2,552,301 |
| Equipment | $1,111,658 | - | $1,111,658 |
| Land | $1,110,832 | - | $1,110,832 |
| Name | Title | Other | Total |
|---|---|---|---|
| Lee Ann Bellew | Vice Chair | $110,380 | $110,380 |
| Name | Title |
|---|---|
| Brian Lawson | BG Chair |
| GABE O'SULLIVAN | Board Chair |
| Jessica Coker | Finance Chair |
| Kim Land | Governance Chair |
| Danielle Cuthbertson | Board Member |
| Edward Jabbour | Board Member |
| Karen Canup | Board Member |
| Martin Wildeman | Board Member |
| Tara Weese | Board Member |
| Kyle Boyles | Head of School |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $3,344,647 |
| Other Expenses | $2,075,254 |
| Grants and Similar Amounts Paid | $668,994 |
| Total Fundraising Expense | $98,627 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $2,258,312 | $510,800 | - | $2,769,112 |
| Grants to Domestic Individuals | $668,994 | - | - | $668,994 |
| Occupancy | $342,952 | $96,730 | - | $439,682 |
| Depreciation Depletion | $301,635 | $85,077 | - | $386,712 |
| Fees for Services Other | $62,561 | $186,248 | - | $248,809 |
| Payroll Taxes | $181,935 | $51,315 | - | $233,250 |
| Other Employee Benefits | $180,886 | $51,019 | - | $231,905 |
| Current Officers, Directors, Trustees, and Key Employees | $77,266 | $16,557 | $16,557 | $110,380 |
| Interest | $71,295 | $20,109 | - | $91,404 |
| Office Expenses | - | $91,193 | - | $91,193 |
| Advertising | - | - | $82,070 | $82,070 |
| Fees for Services Accounting | - | $68,732 | - | $68,732 |
| Fees for Services Legal | - | $31,500 | - | $31,500 |
| Other Expenses | $29,996 | - | - | $29,996 |
| Total Functional Expenses | $4,780,988 | $1,209,280 | $98,627 | $6,088,895 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“The 990 is reviewed by a member of the executive committee prior to filing.”
“Conflicts must be disclosed by board members and the conflicted member must”
“refrain from all discussion and voting.”
“Head of School - The board regularly evaluates industry standards and local”
“private school salary schedules to determine a fair and appropriate salary.”
“All documents are available for inspection upon request during regular”
“business hours.”
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 | 351360 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 334286 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 112139 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 89872 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Built on a foundation of Christian faith Oakbrook Preparatory School educates students to be independent learners in a changing world |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 82070 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 82070 |
| IRS990/AllOtherContributionsAmt | 0 | 66590 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Prestige School Solutions |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8886196688 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 230 Spindale St |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Spindale |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 28160 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 204272 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 179737 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 16557 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 16557 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 77266 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 110380 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 235966 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 668994 |
| IRS990/CYInvestmentIncomeAmt | 0 | 6314 |
| IRS990/CYOtherExpensesAmt | 0 | 2075254 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 5104863 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -741752 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 3344647 |
| IRS990/CYTotalExpensesAmt | 0 | 6088895 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 98627 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 5347143 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 163268 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 92748 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 85077 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 301635 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 386712 |
| IRS990/Desc | 0 | Oakbrook Preparatory School provides a faith-based, liberal arts education to children enrolled in PreK-12. The school serves approx. 450 students and provides a full range of curricular and co-curricular programs. Oakbrook is accredited through AdvanceED/Cognia. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 126321 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 135 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExcsTaxSect4951Or4952Or4953Ind | 0 | false |
| IRS990/ExpenseAmt | 0 | 4780988 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 68732 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 68732 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 31500 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 31500 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 186248 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 62561 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 248809 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.000 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 45.00 |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LEE ANN BELLEW |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MARTIN WILDEMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | KAREN CANUP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | JESSICA COKER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | DANIELLE CUTHBERTSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | EDWARD JABBOUR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | KIM LAND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | BRIAN LAWSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | GABE O'SULLIVAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | TARA WEESE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | KYLE BOYLES |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 110380 |
| 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/TitleTxt | 0 | Vice Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Board Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Board Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Finance Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Board Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Board Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Governance Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | BG Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Board Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Board Member |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Head of School |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | false |
| IRS990/FormationYr | 0 | 1990 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | true |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 138501 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 10 |
| IRS990/GovernmentGrantsAmt | 0 | 30875 |
| IRS990/GrantAmt | 0 | 668994 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 668994 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 668994 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 5347143 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 15318 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 13985 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 20109 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 71295 |
| IRS990/InterestGrp/TotalAmt | 0 | 91404 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6314 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 6314 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 10 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 5765284 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 6969438 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 6627555 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 12392839 |
| IRS990/LegalDomicileStateCd | 0 | SC |
| 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 | Built on a foundation of Christian faith, Oakbrook Preparatory School educates students to be independent learners in a changing world. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 3125977 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 2992043 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 4719417 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 3996340 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 25985 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 4593096 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3996340 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 96730 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 342952 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 439682 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 91193 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 91193 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 412393 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 51019 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 180886 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 231905 |
| IRS990/OtherExpensesGrp/Desc | 0 | Instructional Programs |
| IRS990/OtherExpensesGrp/Desc | 1 | Program & Auxiliary |
| IRS990/OtherExpensesGrp/Desc | 2 | Temp Rest. Programs |
| IRS990/OtherExpensesGrp/Desc | 3 | Non Capitalized Equipment |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 205477 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 354817 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 44862 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 29996 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 205477 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 354817 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 44862 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 29996 |
| IRS990/OtherOrganizationDsc | 0 | SCHOOL |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 510800 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 2258312 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 2769112 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 51315 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 181935 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 233250 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 46116 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 12751 |
| IRS990/PrincipalOfficerNm | 0 | AMANDA LEDBETTER |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | -7310 |
| 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/BusinessCd | 4 | 611600 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Tuition and Fees |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Auxiliary Programs |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Student Activities |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | Prior Yr Tuition Recovry |
| IRS990/ProgramServiceRevenueGrp/Desc | 4 | Temp Rest Funds |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 4463163 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 355444 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 123265 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 23588 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 4 | 139403 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 4463163 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 355444 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 123265 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 23588 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 4 | 139403 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 570381 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 759121 |
| IRS990/PYInvestmentIncomeAmt | 0 | 13205 |
| IRS990/PYOtherExpensesAmt | 0 | 2120464 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 5186700 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -102949 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 2993650 |
| IRS990/PYTotalExpensesAmt | 0 | 5873235 |
| IRS990/PYTotalRevenueAmt | 0 | 5770286 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -741752 |
| 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 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 5104863 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 600346 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 491517 |
| IRS990ScheduleA/SchoolInd | 0 | X |
| 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/AgentTrusteeEtcInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 1852764 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 5765284 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 7618048 |
| IRS990ScheduleD/DisclosedForCharitablePrpsInd | 0 | false |
| IRS990ScheduleD/DisclosedOrgLegCtrlInd | 0 | false |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 1111658 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 1111658 |
| IRS990ScheduleD/InclEscrowCustodialAcctLiabInd | 0 | false |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 1110832 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 1110832 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 2552301 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 2552301 |
| IRS990ScheduleD/Section170hRqrStsfdInd | 0 | false |
| IRS990ScheduleD/SolicitedAssetsSaleInd | 0 | false |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 6627555 |
| IRS990ScheduleD/WrittenPolicyMonitoringInd | 0 | false |
| IRS990ScheduleE/ComplianceWithRevProc7550Ind | 0 | true |
| IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceAthltProgInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEducPlcyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceOtherActyInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceSchsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd | 0 | false |
| IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd | 0 | false |
| IRS990ScheduleE/GovernmentFinancialAidRcvdInd | 0 | true |
| IRS990ScheduleE/GovernmentFinancialAidRvkdInd | 0 | false |
| IRS990ScheduleE/MaintainCpyOfAllSolInd | 0 | true |
| IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd | 0 | true |
| IRS990ScheduleE/MaintainRacialCompRecsInd | 0 | true |
| IRS990ScheduleE/MaintainScholarshipsRecsInd | 0 | true |
| IRS990ScheduleE/NondiscriminatoryPolicyStmtInd | 0 | true |
| IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd | 0 | true |
| IRS990ScheduleE/PolicyStmtInBrochuresEtcInd | 0 | true |
| IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt | 0 | Oakbrook Preparatory School's racial non-discrimination policy is included on the organization's website as well as in printed literature and handbooks. |
| IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part I Line 3 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | true |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/GrantTypeTxt | 0 | Financial Aid |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/NonCashAssistanceAmt | 0 | 668994 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/NonCashAssistanceDesc | 0 | Applied credit to tuition |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/RecipientCnt | 0 | 100 |
| IRS990ScheduleI/GrantsOtherAsstToIndivInUSGrp/ValuationMethodUsedDesc | 0 | FMV |
| IRS990ScheduleI/Total501c3OrgCnt | 0 | 0 |
| IRS990ScheduleI/TotalOtherOrgCnt | 0 | 0 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | false |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | false |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | false |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | false |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | false |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | false |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | false |
| IRS990/ScheduleJRequiredInd | 0 | true |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 110380 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | LEE ANN BELLEW |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 1 | MARTIN WILDEMAN |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 2 | KAREN CANUP |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 3 | JESSICA COKER |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 4 | DANIELLE CUTHBERTSON |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 5 | EDWARD JABBOUR |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 6 | KIM LAND |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 7 | BRIAN LAWSON |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 8 | GABE O'SULLIVAN |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 9 | TARA WEESE |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 10 | KYLE BOYLES |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | Vice Chair |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 1 | Board Member |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 2 | Board Member |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 3 | Finance Chair |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 4 | Board Member |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 5 | Board Member |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 6 | Governance Chair |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 7 | BG Chair |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 8 | Board Chair |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 9 | Board Member |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 10 | Head of School |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 110380 |
| IRS990ScheduleJ/SeverancePaymentInd | 0 | false |
| IRS990ScheduleJ/SupplementalNonqualRtrPlanInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | The 990 is reviewed by a member of the executive committee prior to filing. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Conflicts must be disclosed by board members and the conflicted member must |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | refrain from all discussion and voting. |
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