$OLP
ONE LIBERTY PROPERTIES INC Stock $olp

$olp Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000155837024002579 Filed on March 06, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$22.70M	$22.74M	$90.65M
YoY Change	-1.12%	-17.95%	-1.7%
Cost Of Revenue	$4.411M	$4.235M	$16.18M
YoY Change	9.13%	0.21%	6.52%
Gross Profit	$18.29M	$18.51M	$74.46M
YoY Change	-3.31%	-21.21%	-3.32%
Gross Profit Margin	80.56%	81.38%	82.15%
Selling, General & Admin	$4.045M	$3.876M	$16.37M
YoY Change	-3.44%	0.05%	3.21%
% of Gross Profit	22.12%	20.94%	21.98%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.021M	$6.220M	$24.79M
YoY Change	-2.02%	2.59%	4.24%
% of Gross Profit	32.93%	33.61%	33.29%
Operating Expenses	$14.48M	$10.10M	$57.34M
YoY Change	0.7%	1.6%	4.57%
Operating Profit	$10.00M	$8.410M	$50.32M
YoY Change	-1.06%	-37.94%	-7.08%
Interest Expense	$4.717M	-$5.273M	$18.78M
YoY Change	2.54%	13.37%	6.89%
% of Operating Profit	47.16%	-62.7%	37.32%
Other Income/Expense, Net	$267.0K	$103.0K	$234.0K
YoY Change	1680.0%	1616.67%	175.29%
Pretax Income	$5.380M	$15.20M	$29.92M
YoY Change	-0.52%	70.67%	-29.19%
Income Tax
% Of Pretax Income
Net Earnings	$5.155M	$14.96M	$29.61M
YoY Change	-4.29%	68.43%	-29.79%
Net Earnings / Revenue	22.71%	65.79%	32.67%
Basic Earnings Per Share	$0.24	$0.71	$1.38
Diluted Earnings Per Share	$0.23	$0.71	$1.38
COMMON SHARES
Basic Shares Outstanding	21.25M	21.07M	20.50M
Diluted Shares Outstanding	20.58M	20.38M	20.56M

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$27.37M	$26.43M	$26.43M
YoY Change	290.15%	293.42%	293.42%
Cash & Equivalents	$27.37M	$26.43M	$26.43M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$16.87M	$16.66M	$16.66M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$44.25M	$43.09M	$43.09M
YoY Change	86.48%	89.02%	89.02%
LONG-TERM ASSETS
Property, Plant & Equipment	$677.3M	$682.0M	$682.0M
YoY Change	-2.89%	-3.47%	-3.47%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.104M	$2.051M	$2.051M
YoY Change	-79.93%	-80.28%	-80.28%
Other Assets	$18.39M	$19.83M	$19.83M
YoY Change	-12.17%	-16.54%	-16.54%
Total Long-Term Assets	$711.4M	$718.5M	$718.5M
YoY Change	-4.82%	-5.52%	-5.52%
TOTAL ASSETS
Total Short-Term Assets	$44.25M	$43.09M	$43.09M
Total Long-Term Assets	$711.4M	$718.5M	$718.5M
Total Assets	$755.7M	$761.6M	$761.6M
YoY Change	-2.01%	-2.76%	-2.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$13.31M	$15.50M	$15.50M
YoY Change	-26.14%	-19.55%	-19.55%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$23.40M	$25.42M	$25.42M
YoY Change	-16.0%	-12.24%	-12.24%
LONG-TERM LIABILITIES
Long-Term Debt	$416.5M	$418.3M	$418.3M
YoY Change	-0.29%	-1.85%	-1.85%
Other Long-Term Liabilities	$9.679M	$10.10M	$10.10M
YoY Change	-10.58%	-9.25%	-9.25%
Total Long-Term Liabilities	$426.2M	$428.4M	$428.4M
YoY Change	-0.55%	-2.04%	-2.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$23.40M	$25.42M	$25.42M
Total Long-Term Liabilities	$426.2M	$428.4M	$428.4M
Total Liabilities	$449.6M	$453.9M	$454.9M
YoY Change	-1.49%	-2.67%	-2.65%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$349.4M	$346.7M
YoY Change	0.22%	0.13%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$304.8M	$306.7M	$306.7M
YoY Change
Total Liabilities & Shareholders Equity	$755.7M	$761.6M	$761.6M
YoY Change	-2.01%	-2.76%	-2.76%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$5.155M	$14.96M	$29.61M
YoY Change	-4.29%	68.43%	-29.79%
Depreciation, Depletion And Amortization	$6.021M	$6.220M	$24.79M
YoY Change	-2.02%	2.59%	4.24%
Cash From Operating Activities	$8.907M	$9.971M	$46.05M
YoY Change	-39.46%	6.33%	4.2%
INVESTING ACTIVITIES
Capital Expenditures	$844.0K	$979.0K	$14.10M
YoY Change	16.41%	-92.09%	-74.74%
Acquisitions
YoY Change
Other Investing Activities	$2.670M	$34.52M	$47.05M
YoY Change	-26.43%	-17536.36%	54.39%
Cash From Investing Activities	$1.826M	$33.55M	$32.96M
YoY Change	-37.12%	-366.82%	-230.17%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$9.638M
YoY Change			83.93%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-10.10M	-22.41M	-56.69M
YoY Change	-40.96%	1424.35%	100.55%
NET CHANGE
Cash From Operating Activities	8.907M	9.971M	46.05M
Cash From Investing Activities	1.826M	33.55M	32.96M
Cash From Financing Activities	-10.10M	-22.41M	-56.69M
Net Change In Cash	629.0K	21.11M	22.32M
YoY Change	25.3%	-552.48%	-337.67%
FREE CASH FLOW
Cash From Operating Activities	$8.907M	$9.971M	$46.05M
Capital Expenditures	$844.0K	$979.0K	$14.10M
Free Cash Flow	$8.063M	$8.992M	$31.96M
YoY Change	-42.35%	-400.03%	-375.64%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2023Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000712770
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20362000
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20323000
CY2023	us-gaap	Lessor Operating Lease Existence Of Option To Extend LessorOperatingLeaseExistenceOfOptionToExtend	true
CY2023	us-gaap	Lessor Operating Lease Existence Of Option To Terminate LessorOperatingLeaseExistenceOfOptionToTerminate	true
CY2023Q4	us-gaap	Lease Practical Expedient Lessor Single Lease Component LeasePracticalExpedientLessorSingleLeaseComponent	false
CY2023Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrentAndNoncurrent
CY2023	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	28323000
CY2022	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	40743000
CY2021	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	37531000
CY2023	olp	Subsequent Disqualification Period If Failed To Qualify As Reit SubsequentDisqualificationPeriodIfFailedToQualifyAsREIT	P4Y
CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-09279
CY2023	dei	Entity Registrant Name EntityRegistrantName	ONE LIBERTY PROPERTIES, INC.
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-3147497
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	60 Cutter Mill Road
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Great Neck
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	11021
CY2023	dei	City Area Code CityAreaCode	516
CY2023	dei	Local Phone Number LocalPhoneNumber	466-3100
CY2023	dei	Security12b Title Security12bTitle	Common Stock
CY2023	dei	Trading Symbol TradingSymbol	OLP
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	true
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	329000000
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	21253398
CY2023	dei	Auditor Firm AuditorFirmId	42
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	New York, New York
CY2023Q4	us-gaap	Land Land	172309000
CY2022Q4	us-gaap	Land Land	181805000
CY2023Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	692346000
CY2022Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	697791000
CY2023Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	864655000
CY2022Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	879596000
CY2023Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	182705000
CY2022Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	173143000
CY2023Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	681950000
CY2022Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	706453000
CY2023Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	2051000
CY2022Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	10400000
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26430000
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6718000
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16661000
CY2022Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16079000
CY2023Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	14681000
CY2022Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	19841000
CY2023Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	19833000
CY2022Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	23764000
CY2023Q4	us-gaap	Assets Assets	761606000
CY2022Q4	us-gaap	Assets Assets	783255000
CY2023Q4	us-gaap	Secured Debt SecuredDebt	418347000
CY2022Q4	us-gaap	Secured Debt SecuredDebt	405162000
CY2022Q4	us-gaap	Line Of Credit LineOfCredit	21068000
CY2023Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9916000
CY2022Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9693000
CY2023Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	15502000
CY2022Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	19270000
CY2023Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	10096000
CY2022Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	11125000
CY2023Q4	us-gaap	Liabilities Liabilities	453861000
CY2022Q4	us-gaap	Liabilities Liabilities	466318000
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20323000
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20362000
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	20323000
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	20362000
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	326379000
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	325895000
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	844000
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1810000
CY2023Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	40843000
CY2022Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	32102000
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	306703000
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	315965000
CY2023Q4	us-gaap	Minority Interest MinorityInterest	1042000
CY2022Q4	us-gaap	Minority Interest MinorityInterest	972000
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	307745000
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	316937000
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	761606000
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	783255000
CY2023	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	90646000
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	92216000
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	82740000
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24789000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23781000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22832000
CY2023	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	15822000
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	15258000
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14310000
CY2023	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	16444000
CY2022	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	15508000
CY2021	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	13802000
CY2023	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	284000
CY2022	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	285000
CY2021	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	291000
CY2023	us-gaap	Operating Expenses OperatingExpenses	57339000
CY2022	us-gaap	Operating Expenses OperatingExpenses	54832000
CY2021	us-gaap	Operating Expenses OperatingExpenses	51235000
CY2023	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	17008000
CY2022	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	16762000
CY2021	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	25463000
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	50315000
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	54146000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	56968000
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-904000
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	202000
CY2023	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	-108000
CY2021	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	805000
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-901000
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	5388000
CY2023	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	234000
CY2022	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1003000
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	869000
CY2023	us-gaap	Interest Expense InterestExpense	18780000
CY2022	us-gaap	Interest Expense InterestExpense	17569000
CY2021	us-gaap	Interest Expense InterestExpense	17939000
CY2023	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	839000
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1115000
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	970000
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	304000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	29614000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	42177000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	38857000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20499000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20360000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20086000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20556000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20453000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20264000
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.38
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2023	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassification	-967000
CY2022	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassification	3325000
CY2021	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassification	3497000
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	28951000
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	45578000
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	42531000
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	304000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2023	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationNoncontrollingInterest	-1000
CY2022	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationNoncontrollingInterest	2000
CY2021	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationNoncontrollingInterest	8000
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	28648000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	45500000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	42346000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	291960000
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.80
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	37505000
CY2021	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	977000
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3314000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5433000
CY2021	olp	Increase In Non Controlling Interest Balance From Payment Of Dividends Or Other Contributions IncreaseInNonControllingInterestBalanceFromPaymentOfDividendsOrOtherContributions	25000
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	457000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3497000
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	306278000
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.80
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	38092000
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5240000
CY2022	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	2395000
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	563000
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5507000
CY2022	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	52000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3325000
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	316937000
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.80
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	38355000
CY2023	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	9638000
CY2023	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	4716000
CY2023	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5367000
CY2023	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	233000
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-967000
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	307745000
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2023	olp	Gain Loss On Sale Of Property Cash Flow Impact GainLossOnSaleOfPropertyCashFlowImpact	17008000
CY2022	olp	Gain Loss On Sale Of Property Cash Flow Impact GainLossOnSaleOfPropertyCashFlowImpact	16762000
CY2021	olp	Gain Loss On Sale Of Property Cash Flow Impact GainLossOnSaleOfPropertyCashFlowImpact	25463000
CY2023	us-gaap	Straight Line Rent StraightLineRent	1898000
CY2022	us-gaap	Straight Line Rent StraightLineRent	2409000
CY2021	us-gaap	Straight Line Rent StraightLineRent	234000
CY2023	olp	Write Off Of Unbilled Rent Receivable As Reduction Of Rental Income WriteOffOfUnbilledRentReceivableAsReductionOfRentalIncome	133000
CY2023	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-952000
CY2022	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-831000
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-785000
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	5367000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	5507000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5433000
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-904000
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	202000
CY2023	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	-108000
CY2021	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	805000
CY2023	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	194000
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	172000
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1440000
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	24789000
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	23781000
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22832000
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	839000
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1115000
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	970000
CY2023	olp	Payments To Brokers For Commissions Classified As Operating Activities PaymentsToBrokersForCommissionsClassifiedAsOperatingActivities	755000
CY2022	olp	Payments To Brokers For Commissions Classified As Operating Activities PaymentsToBrokersForCommissionsClassifiedAsOperatingActivities	2561000
CY2021	olp	Payments To Brokers For Commissions Classified As Operating Activities PaymentsToBrokersForCommissionsClassifiedAsOperatingActivities	1430000
CY2023	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-3818000
CY2022	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	6856000
CY2021	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-6759000
CY2023	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	596000
CY2022	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1188000
CY2021	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1012000
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	46053000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	44197000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	48561000
CY2023	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	9229000
CY2022	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	51217000
CY2021	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	24534000
CY2023	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4866000
CY2022	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4574000
CY2021	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4106000
CY2023	olp	Contributions To Ground Leased Variable Interest Entity Property ContributionsToGroundLeasedVariableInterestEntityProperty	932000
CY2022	olp	Contributions To Ground Leased Variable Interest Entity Property ContributionsToGroundLeasedVariableInterestEntityProperty	697000
CY2021	olp	Contributions To Ground Leased Variable Interest Entity Property ContributionsToGroundLeasedVariableInterestEntityProperty	1746000
CY2023	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	40839000
CY2022	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	30253000
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	52685000
CY2022	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	918000
CY2021	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	975000
CY2023	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	7143000
CY2021	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	97000
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	32955000
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-25317000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	23371000
CY2023	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	12405000
CY2022	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	12624000
CY2021	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	13957000
CY2023	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	14935000
CY2022	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	54585000
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	30532000
CY2023	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	36450000
CY2022	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	70690000
CY2021	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	10600000
CY2023	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	40900000
CY2022	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	53300000
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	21200000
CY2023	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	62700000
CY2022	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	43200000
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	22450000
CY2023	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	4716000
CY2022	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	2395000
CY2021	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	977000
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9638000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5240000
CY2022	olp	Proceeds From Issuance Of Common Stock Net ProceedsFromIssuanceOfCommonStockNet	563000
CY2021	olp	Proceeds From Issuance Of Common Stock Net ProceedsFromIssuanceOfCommonStockNet	3314000
CY2023	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	716000
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1669000
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	232000
CY2021	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	25000
CY2023	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	233000
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	52000
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	457000
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	38132000
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37847000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37318000
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-56693000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-28269000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-68830000
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	22315000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-9389000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	3102000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7277000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	16666000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13564000
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29592000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7277000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	16666000
CY2023	us-gaap	Interest Paid Net InterestPaidNet	18798000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	17475000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18972000
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	4280000
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	6034000
CY2023	olp	Non Cash Adjustments To Lease Liabilities Attributable To Reassessment Of Right Of Use Assets NonCashAdjustmentsToLeaseLiabilitiesAttributableToReassessmentOfRightOfUseAssets	3366000
CY2023	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	1816000
CY2023	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseAssets	871000
CY2022	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseAssets	4322000
CY2021	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseAssets	2288000
CY2023	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Mortgage Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleMortgageAssets	260000
CY2022	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Mortgage Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleMortgageAssets	670000
CY2023	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Liabilities NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseLiabilities	-237000
CY2022	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Liabilities NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseLiabilities	-2006000
CY2021	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Liabilities NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseLiabilities	-632000
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26430000
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6718000
CY2023Q4	olp	Restricted Cash Included In Escrow Deposits And Other Assets And Receivables RestrictedCashIncludedInEscrowDepositsAndOtherAssetsAndReceivables	3162000
CY2022Q4	olp	Restricted Cash Included In Escrow Deposits And Other Assets And Receivables RestrictedCashIncludedInEscrowDepositsAndOtherAssetsAndReceivables	559000
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	29592000
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7277000
CY2023	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 6pt 0pt;">NOTE 1 — ORGANIZATION AND BACKGROUND</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="white-space:pre-wrap;">One Liberty Properties, Inc. (“OLP”) was incorporated in 1982 in Maryland. OLP is a self-administered and self-managed real estate investment trust (“REIT”). OLP acquires, owns and manages a geographically diversified portfolio consisting primarily of industrial and, to a lesser extent, retail properties, many of which are subject to long-term net leases. As of December 31, 2023, OLP owns </span>110 properties, including three properties owned by consolidated joint ventures and two properties owned by unconsolidated joint ventures. The 110 properties are located in 31 states.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p>
CY2023Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	110
CY2023Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	110
CY2023Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	31
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;margin:0pt;">Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="white-space:pre-wrap;">Management believes that the estimates and assumptions that are most important to the portrayal of the Company’s consolidated financial condition and results of operations, in that they require management’s most difficult, subjective or complex judgments, form the basis of the accounting policies deemed to be most significant to the Company. These significant accounting policies relate to revenues and the value of the Company’s real estate portfolio, including investments in unconsolidated joint ventures. Management believes its estimates and assumptions related to these significant accounting policies are appropriate under the circumstances; however, should future events or occurrences result in unanticipated consequences, there could be a material impact on the Company’s future consolidated financial condition or results of operations.</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;"></span></p>
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2023Q4	olp	Unconsolidated Joint Venture Variable Interest Entity Number Of Entities UnconsolidatedJointVentureVariableInterestEntityNumberOfEntities	0
CY2023Q4	olp	Joint Venture Recourse Debt JointVentureRecourseDebt	0
CY2023	olp	Impairment Charges On Investments In Unconsolidated Joint Ventures ImpairmentChargesOnInvestmentsInUnconsolidatedJointVentures	0
CY2022	olp	Operating Lease Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	91360000
CY2021	olp	Operating Lease Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	81395000
CY2022Q4	olp	Additional Rent Accrued From Ground Lease Tenant AdditionalRentAccruedFromGroundLeaseTenant	4626000
CY2023	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-952000
CY2022	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-831000
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-785000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	935000
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3363000
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;margin:0pt;">Concentration of Credit Risk</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">The Company maintains cash accounts at various financial institutions. While the Company attempts to limit any financial exposure, substantially all of its deposit balances exceed federally insured limits. The Company has not experienced any losses on such accounts.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="font-size:8pt;margin-bottom:12pt;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">The Company’s properties are located in 31 states. Only one state, South Carolina, contributed more than 10% (<i style="font-style:italic;">i.e.</i>, 10.3%) to the Company’s total revenues in 2023. No real estate investments in any one state contributed more than 10% to the Company’s total revenues in 2022 and 2021.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="font-size:8pt;margin-bottom:12pt;visibility:hidden;"></span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;">No tenant contributed over 10% to the Company’s total revenues in any of the past three years.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:18pt;margin:0pt;"><span style="font-size:8pt;margin-bottom:12pt;visibility:hidden;"></span></p>
CY2023Q4	olp	Real Estate Taxes Insurance And Other Escrows RealEstateTaxesInsuranceAndOtherEscrows	3162000
CY2022Q4	olp	Real Estate Taxes Insurance And Other Escrows RealEstateTaxesInsuranceAndOtherEscrows	559000
CY2023	olp	Operating Lease Lease Income Lease Payments Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeLeasePaymentsExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	75935000
CY2022	olp	Operating Lease Lease Income Lease Payments Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeLeasePaymentsExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	74101000
CY2021	olp	Operating Lease Lease Income Lease Payments Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeLeasePaymentsExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	70387000
CY2023	olp	Operating Lease Variable Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseVariableLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	13759000
CY2022	olp	Operating Lease Variable Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseVariableLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	17259000
CY2021	olp	Operating Lease Variable Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseVariableLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	11008000
CY2023	olp	Operating Lease Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	89694000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	70906000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	65473000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	61286000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	51983000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	41028000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	127437000
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	418113000
CY2023Q4	olp	Other Assets And Receivables Unamortized Lease Incentives OtherAssetsAndReceivablesUnamortizedLeaseIncentives	1095000
CY2022Q4	olp	Other Assets And Receivables Unamortized Lease Incentives OtherAssetsAndReceivablesUnamortizedLeaseIncentives	1300000
CY2023	olp	Lease Incentives Amortized LeaseIncentivesAmortized	121000
CY2022	olp	Lease Incentives Amortized LeaseIncentivesAmortized	44000
CY2023	olp	Lease Incentives Write Off Of Unamortized Lease Incentive Due To Sale Of Property LeaseIncentivesWriteOffOfUnamortizedLeaseIncentiveDueToSaleOfProperty	84000
CY2023	olp	Lease Incentive Amortization Term LeaseIncentiveAmortizationTerm	P10Y
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16661000
CY2022Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16079000
CY2023	olp	Deferred Rent Receivable Period During Which Amount Of Rent To Be Billed And Received DeferredRentReceivablePeriodDuringWhichAmountOfRentToBeBilledAndReceived	P19Y
CY2023	olp	Straight Line Rent Receivable Written Off Relating To Property Sold StraightLineRentReceivableWrittenOffRelatingToPropertySold	1048000
CY2022	olp	Straight Line Rent Receivable Written Off Relating To Property Sold StraightLineRentReceivableWrittenOffRelatingToPropertySold	519000
CY2021	olp	Straight Line Rent Receivable Written Off Relating To Property Sold StraightLineRentReceivableWrittenOffRelatingToPropertySold	1438000
CY2023Q4	olp	Deferred Rent Payables DeferredRentPayables	579000
CY2022Q4	olp	Deferred Rent Payables DeferredRentPayables	756000
CY2023	olp	Deferred Rent Payables Period During Which Amount Of Rent To Be Billed And Payables DeferredRentPayablesPeriodDuringWhichAmountOfRentToBeBilledAndPayables	P8Y
CY2023	olp	Unbilled Rent Receivable Written Off Due To Sale Of Property UnbilledRentReceivableWrittenOffDueToSaleOfProperty	43000
CY2021	olp	Unbilled Rent Receivable Written Off Due To Sale Of Property UnbilledRentReceivableWrittenOffDueToSaleOfProperty	0
CY2022	olp	Unbilled Rent Receivable Written Off Due To Sale Of Property UnbilledRentReceivableWrittenOffDueToSaleOfProperty	0
CY2023	olp	Straight Line Rent Receivable Written Off Relating To Tenant Filing Bankruptcy StraightLineRentReceivableWrittenOffRelatingToTenantFilingBankruptcy	133000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	557000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	626000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	627000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	629000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	630000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1229000
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	4298000
CY2023Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	5191000
CY2022Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	5061000
CY2023Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	1085000
CY2023Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	723000
CY2023Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	704000
CY2023Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	756000
CY2023Q4	us-gaap	Below Market Lease Amortization Income Year Five BelowMarketLeaseAmortizationIncomeYearFive	735000
CY2023Q4	us-gaap	Below Market Lease Amortization Income After Year Five BelowMarketLeaseAmortizationIncomeAfterYearFive	6093000
CY2023Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	10096000
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	24789000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23781000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22832000
CY2023Q4	olp	Debt Instrument Outstanding Number DebtInstrumentOutstandingNumber	68
CY2023Q4	olp	Real Estate Investments Secured By First Liens On Individual Real Estate Investments Gross Carrying Value RealEstateInvestmentsSecuredByFirstLiensOnIndividualRealEstateInvestmentsGrossCarryingValue	670157000
CY2023Q4	olp	Real Estate Investments Secured By First Liens On Individual Real Estate Investments Accumulated Depreciation RealEstateInvestmentsSecuredByFirstLiensOnIndividualRealEstateInvestmentsAccumulatedDepreciation	127325000
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	304000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2023	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1291000
CY2022	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1434000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Next Twelve Months SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInNextTwelveMonths	11873000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Two SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearTwo	10627000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Three SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearThree	10491000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Four SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearFour	9399000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearFive	8718000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due After Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueAfterYearFive	34283000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPayments	85391000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Of Due In Next Twelve Months SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsOfDueInNextTwelveMonths	61779000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Two SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearTwo	41477000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Three SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearThree	29670000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Four SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearFour	47923000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearFive	38873000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due After Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueAfterYearFive	202843000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	422565000
CY2023Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	5298000
CY2022Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	4791000
CY2023Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	397031000
CY2022Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	378943000
CY2023Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	422565000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	409175000
CY2023Q4	olp	Debt Instrument Excess Of Estimated Carrying Value Over Fair Value DebtInstrumentExcessOfEstimatedCarryingValueOverFairValue	25534000
CY2022Q4	olp	Debt Instrument Excess Of Estimated Carrying Value Over Fair Value DebtInstrumentExcessOfEstimatedCarryingValueOverFairValue	30232000
CY2023	us-gaap	Long Term Debt Weighted Average Interest Rate Over Time LongTermDebtWeightedAverageInterestRateOverTime	0.0431
CY2022	us-gaap	Long Term Debt Weighted Average Interest Rate Over Time LongTermDebtWeightedAverageInterestRateOverTime	0.0410
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.80
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.80
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.80
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	9500000
CY2023	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
CY2023	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	233000
CY2022	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	102000
CY2021	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	35000
CY2023Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	450000
CY2022Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	210000
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2021	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1326000
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	28323000
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	40743000
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	37531000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20499000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20360000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20086000
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	57000
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	93000
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	178000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20556000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20453000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20264000
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.38
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.38
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2023	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Underlying Shares IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares	248112
CY2023	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Return On Capital Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToReturnOnCapitalMetric	98098
CY2023	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Stockholder Return Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToStockholderReturnMetric	42625
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	140723
CY2023	olp	Common Shares Not Included Attributable To Share Based Payment Arrangements Due To Applicable Metrics CommonSharesNotIncludedAttributableToShareBasedPaymentArrangementsDueToApplicableMetrics	107389
CY2022	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Underlying Shares IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares	241076
CY2022	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Return On Capital Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToReturnOnCapitalMetric	118085
CY2022	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Stockholder Return Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToStockholderReturnMetric	37513
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	155598
CY2022	olp	Common Shares Not Included Attributable To Share Based Payment Arrangements Due To Applicable Metrics CommonSharesNotIncludedAttributableToShareBasedPaymentArrangementsDueToApplicableMetrics	85478
CY2021	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Underlying Shares IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares	230752
CY2021	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Return On Capital Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToReturnOnCapitalMetric	115376
CY2021	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Stockholder Return Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToStockholderReturnMetric	115376
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	230752
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	5388000
CY2021Q4	olp	Number Of Properties Included In Lease Split And Assignment Agreement NumberOfPropertiesIncludedInLeaseSplitAndAssignmentAgreement	6
CY2022	olp	Fee Income Lease Split And Assignment Agreement FeeIncomeLeaseSplitAndAssignmentAgreement	0
CY2023	olp	Fee Income Lease Split And Assignment Agreement FeeIncomeLeaseSplitAndAssignmentAgreement	0
CY2021	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	44689000
CY2021	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
CY2023	olp	Percentage Of Distributions Representing Ordinary Income To Shareholders PercentageOfDistributionsRepresentingOrdinaryIncomeToShareholders	0.53
CY2022	olp	Percentage Of Distributions Representing Ordinary Income To Shareholders PercentageOfDistributionsRepresentingOrdinaryIncomeToShareholders	0.54
CY2021	olp	Percentage Of Distributions Representing Ordinary Income To Shareholders PercentageOfDistributionsRepresentingOrdinaryIncomeToShareholders	0.43
CY2023	olp	Percentage Of Distributions Representing Capital Gains To Shareholders PercentageOfDistributionsRepresentingCapitalGainsToShareholders	0.47
CY2022	olp	Percentage Of Distributions Representing Capital Gains To Shareholders PercentageOfDistributionsRepresentingCapitalGainsToShareholders	0.46
CY2021	olp	Percentage Of Distributions Representing Capital Gains To Shareholders PercentageOfDistributionsRepresentingCapitalGainsToShareholders	0.57
CY2023	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2022	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2021	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2023	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	38116000
CY2022	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	37915000
CY2021	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	37478000
CY2023	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	157000
CY2022	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	102000
CY2021	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	35000
CY2023	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	38273000
CY2022	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	38017000
CY2021	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	37513000
CY2023	olp	Dividends Designated To Previous Year DividendsDesignatedToPreviousYear	4240000
CY2021	olp	Dividends Designated To Following Year DividendsDesignatedToFollowingYear	2085000
CY2022	olp	Dividends Designated From Prior Year DividendsDesignatedFromPriorYear	2085000
CY2021	olp	Dividends Designated From Prior Year DividendsDesignatedFromPriorYear	9261000
CY2023	olp	Dividends Designated From Following Year DividendsDesignatedFromFollowingYear	737000
CY2022	olp	Dividends Designated From Following Year DividendsDesignatedFromFollowingYear	4240000
CY2023	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	34770000
CY2022	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	44342000
CY2022	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
CY2023	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
CY2023Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	22952000
CY2023Q2	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	22407000
CY2023Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	22546000
CY2023Q4	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	22741000
CY2023	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	90646000
CY2023Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	1534000
CY2023Q2	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	3180000
CY2023Q3	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	332000
CY2023Q4	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	11962000
CY2023	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	17008000
CY2023Q1	us-gaap	Profit Loss ProfitLoss	5408000
CY2023Q2	us-gaap	Profit Loss ProfitLoss	6539000
CY2023Q3	us-gaap	Profit Loss ProfitLoss	2769000
CY2023Q4	us-gaap	Profit Loss ProfitLoss	15202000
CY2023	us-gaap	Profit Loss ProfitLoss	29918000
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	5386000
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	6519000
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	2747000
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	14962000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	29614000
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20514000
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20571000
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20567000
CY2023Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20342000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20499000
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20579000
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20642000
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20596000
CY2023Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20383000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20556000
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2023Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.38
CY2022Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	21556000
CY2022Q2	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	21472000
CY2022Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	21473000
CY2022Q4	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	27715000
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	92216000
CY2022Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	4649000
CY2022Q2	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	8050000
CY2022Q3	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	4063000
CY2022	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	16762000
CY2022Q1	us-gaap	Profit Loss ProfitLoss	9340000
CY2022Q2	us-gaap	Profit Loss ProfitLoss	16785000
CY2022Q3	us-gaap	Profit Loss ProfitLoss	7221000
CY2022Q4	us-gaap	Profit Loss ProfitLoss	8907000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	9323000
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	16767000
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	7204000
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	8883000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	42177000
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20379000
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20364000
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20340000
CY2022Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20358000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20360000
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20541000
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20480000
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20416000
CY2022Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20406000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20453000
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2022Q4	olp	Additional Rental Income From Ground Lease Tenant Recognized AdditionalRentalIncomeFromGroundLeaseTenantRecognized	4626000
CY2022Q2	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	5388000
CY2023Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	422565000
CY2023Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	169382000
CY2023Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	641447000
CY2023Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	53826000
CY2023Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	172309000
CY2023Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	692346000
CY2023Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	864655000
CY2023Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	182705000
CY2022Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	879596000
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	837641000
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	839058000
CY2023	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	18176000
CY2022	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	59654000
CY2021	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	28837000
CY2023	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	33117000
CY2022	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	17699000
CY2021	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	28064000
CY2021	olp	Sec Schedule1228 Real Estate Companies Investment In Real Estate Cost Of Investment In Real Estate Held For Sale SecSchedule1228RealEstateCompaniesInvestmentInRealEstateCostOfInvestmentInRealEstateHeldForSale	2190000
CY2023Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	864655000
CY2022Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	879596000
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	837641000
CY2022Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	173143000
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	160664000
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	147136000
CY2023	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	19242000
CY2022	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	18471000
CY2021	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	17694000
CY2023	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	9680000
CY2022	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5992000
CY2021	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	3246000
CY2021	olp	Sec Schedule1228 Real Estate Companies Investment In Real Estate Accumulated Depreciation Investment In Real Estate Held For Sale SecSchedule1228RealEstateCompaniesInvestmentInRealEstateAccumulatedDepreciationInvestmentInRealEstateHeldForSale	920000
CY2023Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	182705000
CY2022Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	173143000
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	160664000
CY2023Q4	olp	Real Estate Federal Income Tax Basis Difference Amount RealEstateFederalIncomeTaxBasisDifferenceAmount	20749000

Files In Submission

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$OLP
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2024 Q1 Form 10-K Financial Statement

#000155837024002579 Filed on March 06, 2024

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$OLP ONE LIBERTY PROPERTIES INC Stock $olp

2024 Q1 Form 10-K Financial Statement

#000155837024002579 Filed on March 06, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OLP
ONE LIBERTY PROPERTIES INC Stock $olp