$OLP
ONE LIBERTY PROPERTIES INC Stock $olp

$olp Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000155837023003726 Filed on March 14, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$22.95M	$27.72M	$92.22M
YoY Change	6.48%	31.56%	11.45%
Cost Of Revenue	$4.042M	$4.226M	$15.19M
YoY Change	11.94%	22.49%	12.6%
Gross Profit	$18.91M	$23.49M	$77.02M
YoY Change	5.38%	33.34%	11.23%
Gross Profit Margin	82.39%	84.75%	83.52%
Selling, General & Admin	$4.189M	$3.874M	$15.86M
YoY Change	6.27%	11.0%	6.36%
% of Gross Profit	22.15%	16.49%	20.59%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.145M	$6.063M	$23.78M
YoY Change	5.17%	4.95%	4.16%
% of Gross Profit	32.5%	25.81%	30.88%
Operating Expenses	$14.38M	$9.937M	$54.83M
YoY Change	7.32%	7.23%	7.02%
Operating Profit	$10.11M	$13.55M	$54.15M
YoY Change	-21.07%	62.32%	-4.95%
Interest Expense	$4.600M	-$4.651M	$17.57M
YoY Change	6.83%	4.49%	-2.06%
% of Operating Profit	45.5%	-34.32%	32.45%
Other Income/Expense, Net	$15.00K	$6.000K	$85.00K
YoY Change	87.5%	50.0%	466.67%
Pretax Income	$5.408M	$8.907M	$42.25M
YoY Change	-42.1%	36.34%	8.25%
Income Tax
% Of Pretax Income
Net Earnings	$5.386M	$8.883M	$42.18M
YoY Change	-42.23%	36.51%	8.54%
Net Earnings / Revenue	23.47%	32.05%	45.74%
Basic Earnings Per Share	$0.25	$0.42	$2.00
Diluted Earnings Per Share	$0.25	$0.42	$1.99
COMMON SHARES
Basic Shares Outstanding	21.28M	21.07M	20.36M
Diluted Shares Outstanding	20.58M	20.41M	20.45M

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$7.016M	$6.718M	$6.718M
YoY Change	-38.68%	-58.44%	-58.44%
Cash & Equivalents	$7.016M	$6.718M	$6.718M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$16.71M	$16.08M	$16.08M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$23.73M	$22.80M	$22.80M
YoY Change	-7.35%	-25.24%	-25.24%
LONG-TERM ASSETS
Property, Plant & Equipment	$697.5M	$706.5M	$706.5M
YoY Change	2.9%	4.35%	4.35%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$10.48M	$10.40M	$10.40M
YoY Change	1.91%	2.24%	2.24%
Other Assets	$20.94M	$23.76M	$23.76M
YoY Change	26.47%	62.59%	62.59%
Total Long-Term Assets	$747.4M	$760.5M	$760.5M
YoY Change	3.16%	5.26%	5.26%
TOTAL ASSETS
Total Short-Term Assets	$23.73M	$22.80M	$22.80M
Total Long-Term Assets	$747.4M	$760.5M	$760.5M
Total Assets	$771.1M	$783.3M	$783.3M
YoY Change	2.8%	4.02%	4.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$18.02M	$19.27M	$19.27M
YoY Change	2.78%	1.46%	1.46%
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	$27.86M	$28.96M	$28.96M
YoY Change	2.73%	1.84%	1.84%
LONG-TERM LIABILITIES
Long-Term Debt	$417.8M	$426.2M	$426.2M
YoY Change	3.71%	4.51%	4.51%
Other Long-Term Liabilities	$10.82M	$11.13M	$11.13M
YoY Change	4.73%	6.9%	6.9%
Total Long-Term Liabilities	$428.6M	$437.4M	$437.4M
YoY Change	3.73%	4.57%	4.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$27.86M	$28.96M	$28.96M
Total Long-Term Liabilities	$428.6M	$437.4M	$437.4M
Total Liabilities	$456.4M	$466.3M	$467.3M
YoY Change	3.67%	4.4%	4.39%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$348.7M	$346.3M
YoY Change	1.04%	0.94%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$313.7M	$316.0M	$316.0M
YoY Change
Total Liabilities & Shareholders Equity	$771.1M	$783.3M	$783.3M
YoY Change	2.8%	4.02%	4.02%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$5.386M	$8.883M	$42.18M
YoY Change	-42.23%	36.51%	8.54%
Depreciation, Depletion And Amortization	$6.145M	$6.063M	$23.78M
YoY Change	5.17%	4.95%	4.16%
Cash From Operating Activities	$14.71M	$9.377M	$44.20M
YoY Change	66.59%	-21.86%	-8.99%
INVESTING ACTIVITIES
Capital Expenditures	$725.0K	$12.37M	$55.79M
YoY Change	-107.29%	-235.99%	-294.8%
Acquisitions
YoY Change
Other Investing Activities	$3.629M	-$198.0K	$30.47M
YoY Change	-64.43%	-103.6%	-41.41%
Cash From Investing Activities	$2.904M	-$12.57M	-$25.32M
YoY Change	1025.58%	249.61%	-208.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$5.240M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-17.11M	-1.470M	-28.27M
YoY Change	22.8%	-76.19%	-58.93%
NET CHANGE
Cash From Operating Activities	14.71M	9.377M	44.20M
Cash From Investing Activities	2.904M	-12.57M	-25.32M
Cash From Financing Activities	-17.11M	-1.470M	-28.27M
Net Change In Cash	502.0K	-4.665M	-9.389M
YoY Change	-110.36%	-309.1%	-402.68%
FREE CASH FLOW
Cash From Operating Activities	$14.71M	$9.377M	$44.20M
Capital Expenditures	$725.0K	$12.37M	$55.79M
Free Cash Flow	$13.99M	-$2.997M	-$11.59M
YoY Change	-25.5%	-114.2%	-115.02%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000712770
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20239000
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20362000
CY2022	us-gaap	Lessor Operating Lease Existence Of Option To Extend LessorOperatingLeaseExistenceOfOptionToExtend	true
CY2022	us-gaap	Lessor Operating Lease Existence Of Option To Terminate LessorOperatingLeaseExistenceOfOptionToTerminate	true
CY2022Q4	us-gaap	Lease Practical Expedient Lessor Single Lease Component LeasePracticalExpedientLessorSingleLeaseComponent	false
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccruedLiabilitiesCurrentAndNoncurrent
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://www.onelibertyproperties.com/20221231#EscrowDepositsAndOtherAssetsAndReceivables
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccruedLiabilitiesCurrentAndNoncurrent
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://www.onelibertyproperties.com/20221231#EscrowDepositsAndOtherAssetsAndReceivables
CY2022	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	40743000
CY2021	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	37531000
CY2020	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	26144000
CY2022	olp	Subsequent Disqualification Period If Failed To Qualify As Reit SubsequentDisqualificationPeriodIfFailedToQualifyAsREIT	P4Y
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-09279
CY2022	dei	Entity Registrant Name EntityRegistrantName	ONE LIBERTY PROPERTIES, INC.
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-3147497
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	60 Cutter Mill Road
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Great Neck
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	11021
CY2022	dei	City Area Code CityAreaCode	516
CY2022	dei	Local Phone Number LocalPhoneNumber	466-3100
CY2022	dei	Security12b Title Security12bTitle	Common Stock
CY2022	dei	Trading Symbol TradingSymbol	OLP
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	true
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	422000000
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	21276435
CY2022	dei	Auditor Firm AuditorFirmId	42
CY2022	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2022	dei	Auditor Location AuditorLocation	New York, New York
CY2022Q4	us-gaap	Land Land	181805000
CY2021Q4	us-gaap	Land Land	180183000
CY2022Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	697791000
CY2021Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	657458000
CY2022Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	879596000
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	837641000
CY2022Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	173143000
CY2021Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	160664000
CY2022Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	706453000
CY2021Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	676977000
CY2021Q4	us-gaap	Inventory Real Estate Held For Sale InventoryRealEstateHeldForSale	1270000
CY2022Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	10400000
CY2021Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	10172000
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6718000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16164000
CY2022Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16079000
CY2021Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	14330000
CY2022Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	19841000
CY2021Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	20694000
CY2022Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	23764000
CY2021Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	13346000
CY2022Q4	us-gaap	Assets Assets	783255000
CY2021Q4	us-gaap	Assets Assets	752953000
CY2022Q4	us-gaap	Secured Debt SecuredDebt	405162000
CY2021Q4	us-gaap	Secured Debt SecuredDebt	396344000
CY2022Q4	us-gaap	Line Of Credit LineOfCredit	21068000
CY2021Q4	us-gaap	Line Of Credit LineOfCredit	11484000
CY2022Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9693000
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9448000
CY2022Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	19270000
CY2021Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	18992000
CY2022Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	11125000
CY2021Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	10407000
CY2022Q4	us-gaap	Liabilities Liabilities	466318000
CY2021Q4	us-gaap	Liabilities Liabilities	446675000
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20362000
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20239000
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	20362000
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	20239000
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	325895000
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	322793000
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1810000
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1513000
CY2022Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	32102000
CY2021Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	36187000
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	315965000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	305332000
CY2022Q4	us-gaap	Minority Interest MinorityInterest	972000
CY2021Q4	us-gaap	Minority Interest MinorityInterest	946000
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	316937000
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	306278000
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	783255000
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	752953000
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	92216000
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	82740000
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	81903000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23781000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22832000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22964000
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	15258000
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	14310000
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	13671000
CY2022	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	15508000
CY2021	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	13802000
CY2020	olp	Real Estate Operating Expenses RealEstateOperatingExpenses	13634000
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
CY2020	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	310000
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	430000
CY2022	us-gaap	Operating Expenses OperatingExpenses	54832000
CY2021	us-gaap	Operating Expenses OperatingExpenses	51235000
CY2020	us-gaap	Operating Expenses OperatingExpenses	51009000
CY2022	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	16762000
CY2021	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	25463000
CY2020	olp	Gain Loss On Disposition Of Real Estate GainLossOnDispositionOfRealEstate	17280000
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	54146000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	56968000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	48174000
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	202000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	38000
CY2021	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	805000
CY2020	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	121000
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-901000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1123000
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	5388000
CY2022	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1003000
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	869000
CY2020	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	496000
CY2022	us-gaap	Interest Expense InterestExpense	17569000
CY2021	us-gaap	Interest Expense InterestExpense	17939000
CY2020	us-gaap	Interest Expense InterestExpense	19317000
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1115000
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	970000
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	976000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2020	us-gaap	Profit Loss ProfitLoss	27413000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	42177000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	38857000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	27407000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20360000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20086000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19571000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20453000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20264000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19599000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2020	us-gaap	Profit Loss ProfitLoss	27413000
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
CY2020	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassification	-3383000
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
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	24030000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6000
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
CY2020	olp	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationNoncontrollingInterest	-4000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	45500000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	42346000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24028000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	291984000
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.46
CY2021	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	805000
CY2020	olp	Gain Loss On Disposition Of Real Estate Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateUnconsolidatedJointVenture	121000
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	172000
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1440000
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	29736000
CY2020	olp	Common Stock Dividends Per Share Stock Distributions CommonStockDividendsPerShareStockDistributions	0.34
CY2020	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1026000
CY2020	olp	Increase In Non Controlling Interest Balance From Payment Of Dividends Or Other Contributions IncreaseInNonControllingInterestBalanceFromPaymentOfDividendsOrOtherContributions	10000
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	40000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	4686000
CY2020	us-gaap	Profit Loss ProfitLoss	27413000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3383000
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 New Issues StockIssuedDuringPeriodValueNewIssues	3314000
CY2021	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	977000
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	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5433000
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 New Issues StockIssuedDuringPeriodValueNewIssues	563000
CY2022	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	2395000
CY2022	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	52000
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	5507000
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
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2020	us-gaap	Profit Loss ProfitLoss	27413000
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
CY2020	olp	Gain Loss On Sale Of Property Cash Flow Impact GainLossOnSaleOfPropertyCashFlowImpact	17280000
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	430000
CY2022	us-gaap	Straight Line Rent StraightLineRent	2409000
CY2021	us-gaap	Straight Line Rent StraightLineRent	234000
CY2020	us-gaap	Straight Line Rent StraightLineRent	1722000
CY2020	olp	Write Off Of Unbilled Rent Receivable WriteOffOfUnbilledRentReceivable	-1094000
CY2022	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-831000
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-785000
CY2020	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-780000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	5507000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5433000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	4686000
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	202000
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	38000
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	208000
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	23781000
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22832000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	22964000
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1115000
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	970000
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	976000
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
CY2020	olp	Payments To Brokers For Commissions Classified As Operating Activities PaymentsToBrokersForCommissionsClassifiedAsOperatingActivities	235000
CY2022	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	6856000
CY2021	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-6759000
CY2020	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	3146000
CY2022	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1188000
CY2021	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1012000
CY2020	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	677000
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
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	35126000
CY2022	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	51217000
CY2021	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	24534000
CY2020	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	28504000
CY2022	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4574000
CY2021	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4106000
CY2020	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	1037000
CY2022	olp	Contributions To Ground Leased Variable Interest Entity Property ContributionsToGroundLeasedVariableInterestEntityProperty	697000
CY2021	olp	Contributions To Ground Leased Variable Interest Entity Property ContributionsToGroundLeasedVariableInterestEntityProperty	1746000
CY2022	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	30253000
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	52685000
CY2020	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	29413000
CY2022	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	918000
CY2021	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	975000
CY2020	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	150000
CY2021	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	97000
CY2020	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	311000
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
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	333000
CY2022	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	12624000
CY2021	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	13957000
CY2020	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	13114000
CY2022	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	54585000
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	30532000
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	11815000
CY2022	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	70690000
CY2021	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	10600000
CY2020	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	18200000
CY2022	olp	Proceeds From Issuance Of Common Stock Net ProceedsFromIssuanceOfCommonStockNet	563000
CY2021	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	21200000
CY2020	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	41500000
CY2022	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	43200000
CY2021	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	22450000
CY2021	olp	Proceeds From Issuance Of Common Stock Net ProceedsFromIssuanceOfCommonStockNet	3314000
CY2022	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	53300000
CY2020	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	40000000
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
CY2020	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	1026000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5240000
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1669000
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	232000
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	189000
CY2021	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	25000
CY2020	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	10000
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	52000
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	457000
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	40000
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37847000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37318000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	29441000
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
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-33863000
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
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	1596000
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
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11968000
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
CY2022	us-gaap	Interest Paid Net InterestPaidNet	17475000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18972000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	20213000
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
CY2020	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseAssets	3905000
CY2022	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Mortgage Assets NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleMortgageAssets	670000
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
CY2020	olp	Non Cash Investing Activities Purchase Accounting Allocation Intangible Lease Liabilities NonCashInvestingActivitiesPurchaseAccountingAllocationIntangibleLeaseLiabilities	-568000
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Payables Assumed1 NoncashOrPartNoncashAcquisitionPayablesAssumed1	6034000
CY2020	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	4613000
CY2020	olp	Operating Lease Liability Obtained In Exchange For Right Of Use Asset OperatingLeaseLiabilityObtainedInExchangeForRightOfUseAsset	2858000
CY2020	us-gaap	Stock Issued1 StockIssued1	6828000
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6718000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16164000
CY2022Q4	olp	Restricted Cash Included In Escrow Deposits And Other Assets And Receivables RestrictedCashIncludedInEscrowDepositsAndOtherAssetsAndReceivables	559000
CY2021Q4	olp	Restricted Cash Included In Escrow Deposits And Other Assets And Receivables RestrictedCashIncludedInEscrowDepositsAndOtherAssetsAndReceivables	502000
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
CY2022	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 retail properties, many of which are subject to long-term net leases. As of December 31, 2022, OLP owns </span>120 properties, including three properties owned by consolidated joint ventures and three properties owned by unconsolidated joint ventures. The 120 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>
CY2022Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	120
CY2022Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	120
CY2022Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	31
CY2022	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>
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23781000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22832000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22964000
CY2022Q4	olp	Unconsolidated Joint Venture Variable Interest Entity Number Of Entities UnconsolidatedJointVentureVariableInterestEntityNumberOfEntities	0
CY2022Q4	olp	Joint Venture Recourse Debt JointVentureRecourseDebt	0
CY2022Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	4791000
CY2021Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	4684000
CY2022	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 0pt 8pt 0pt;">Concentration of Credit Risk</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="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. No real estate investments in any one state contributed more than 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="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>
CY2022Q4	olp	Real Estate Taxes Insurance And Other Escrows RealEstateTaxesInsuranceAndOtherEscrows	559000
CY2021Q4	olp	Real Estate Taxes Insurance And Other Escrows RealEstateTaxesInsuranceAndOtherEscrows	502000
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
CY2020	olp	Operating Lease Lease Income Lease Payments Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeLeasePaymentsExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	69823000
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
CY2020	olp	Operating Lease Variable Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseVariableLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	11285000
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
CY2020	olp	Operating Lease Lease Income Excluding Amortization Related To Lease Intangible Assets And Liabilities OperatingLeaseLeaseIncomeExcludingAmortizationRelatedToLeaseIntangibleAssetsAndLiabilities	81108000
CY2022	olp	Increase In Rent Receivable From Ground Lease Tenant IncreaseInRentReceivableFromGroundLeaseTenant	4626000
CY2022	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-831000
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-785000
CY2020	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-780000
CY2022	olp	Operating Lease Income Uncollectible OperatingLeaseIncomeUncollectible	0
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	73407000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	67323000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	63036000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	58802000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	49843000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	176710000
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	489121000
CY2022	olp	Increase In Lease Incentives Payable IncreaseInLeaseIncentivesPayable	1345000
CY2022	olp	Lease Incentives Number Of Tenants LeaseIncentivesNumberOfTenants	3
CY2022	olp	Lease Incentives Amortized LeaseIncentivesAmortized	44000
CY2022	olp	Payments Received Upon Early Lease Termination PaymentsReceivedUponEarlyLeaseTermination	25000
CY2021	olp	Payments Received Upon Early Lease Termination PaymentsReceivedUponEarlyLeaseTermination	487000
CY2020	olp	Payments Received Upon Early Lease Termination PaymentsReceivedUponEarlyLeaseTermination	88000
CY2020	olp	Number Of Retail Tenants In Lease Buy Out Transactions NumberOfRetailTenantsInLeaseBuyOutTransactions	4
CY2021	olp	Number Of Retail Tenants In Lease Buy Out Transactions NumberOfRetailTenantsInLeaseBuyOutTransactions	4
CY2022	olp	Number Of Retail Tenants In Lease Buy Out Transactions NumberOfRetailTenantsInLeaseBuyOutTransactions	4
CY2022Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	16079000
CY2021Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	14330000
CY2022	olp	Deferred Rent Receivable Period During Which Amount Of Rent To Be Billed And Received DeferredRentReceivablePeriodDuringWhichAmountOfRentToBeBilledAndReceived	P20Y
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
CY2020	olp	Straight Line Rent Receivable Written Off Relating To Property Sold StraightLineRentReceivableWrittenOffRelatingToPropertySold	365000
CY2022Q4	olp	Deferred Rent Payables DeferredRentPayables	756000
CY2021Q4	olp	Deferred Rent Payables DeferredRentPayables	897000
CY2022	olp	Deferred Rent Payables Period During Which Amount Of Rent To Be Billed And Payables DeferredRentPayablesPeriodDuringWhichAmountOfRentToBeBilledAndPayables	P10Y
CY2020	olp	Unbilled Rent Receivable Written Off Where Collectability Is Less Than Probable UnbilledRentReceivableWrittenOffWhereCollectabilityIsLessThanProbable	1094000
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5864000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	507000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	557000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	626000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	627000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	629000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	5591000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8537000
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1613000
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	6924000
CY2022	olp	Acquired Finite Lived Intangible Liabilities Weighted Average Amortization Period AcquiredFiniteLivedIntangibleLiabilitiesWeightedAverageAmortizationPeriod	P8Y9M18D
CY2021	olp	Acquired Finite Lived Intangible Liabilities Weighted Average Amortization Period AcquiredFiniteLivedIntangibleLiabilitiesWeightedAverageAmortizationPeriod	P8Y2M12D
CY2022Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	5061000
CY2021Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	8968000
CY2022Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	1162000
CY2022Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	940000
CY2022Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	718000
CY2022Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	711000
CY2022Q4	us-gaap	Below Market Lease Amortization Income Year Five BelowMarketLeaseAmortizationIncomeYearFive	763000
CY2022Q4	us-gaap	Below Market Lease Amortization Income After Year Five BelowMarketLeaseAmortizationIncomeAfterYearFive	6831000
CY2022Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	11125000
CY2023Q1	us-gaap	Litigation Settlement Amount Awarded From Other Party LitigationSettlementAmountAwardedFromOtherParty	4626000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Next Twelve Months SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInNextTwelveMonths	12288000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Two SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearTwo	11388000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Three SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearThree	10037000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Four SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearFour	9897000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due In Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueInYearFive	8766000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments Due After Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPaymentsDueAfterYearFive	39489000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Amortization Payments SecuredDebtBeforeNettingOfDeferredFinancingCostsAmortizationPayments	91865000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Of Due In Next Twelve Months SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsOfDueInNextTwelveMonths	25261000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Two SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearTwo	62083000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Three SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearThree	42100000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Four SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearFour	29076000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due In Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueInYearFive	47291000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs Repayments Due After Year Five SecuredDebtBeforeNettingOfDeferredFinancingCostsRepaymentsDueAfterYearFive	203364000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	409175000
CY2022Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	378943000
CY2021Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	419354000
CY2022Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	409175000
CY2021Q4	olp	Secured Debt Before Netting Of Deferred Financing Costs SecuredDebtBeforeNettingOfDeferredFinancingCosts	399660000
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2022Q4	olp	Debt Instrument Excess Of Estimated Carrying Value Over Fair Value DebtInstrumentExcessOfEstimatedCarryingValueOverFairValue	30232000
CY2021Q4	olp	Debt Instrument Excess Of Estimated Fair Value Over Carrying Value DebtInstrumentExcessOfEstimatedFairValueOverCarryingValue	19694000
CY2021Q4	olp	Accrued Interest Payable On Derivatives In Liability Position AccruedInterestPayableOnDerivativesInLiabilityPosition	84000
CY2022	us-gaap	Profit Loss ProfitLoss	42253000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2020	us-gaap	Profit Loss ProfitLoss	27413000
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	76000
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	177000
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6000
CY2022	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1434000
CY2021	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1326000
CY2020	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1263000
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
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26144000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20360000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20086000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19571000
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	93000
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	178000
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	28000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20453000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20264000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19599000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.00
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
CY2020	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	47000
CY2020	olp	Dividends Designated From Prior Year DividendsDesignatedFromPriorYear	8976000
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
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
CY2020	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Underlying Shares IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares	223802
CY2020	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Return On Capital Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToReturnOnCapitalMetric	85569
CY2020	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Due To Stockholder Return Metric IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToStockholderReturnMetric	37513
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	123082
CY2020	olp	Common Shares Not Included Attributable To Share Based Payment Arrangements Due To Applicable Metrics CommonSharesNotIncludedAttributableToShareBasedPaymentArrangementsDueToApplicableMetrics	100720
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
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
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.80
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.80
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2023Q1	us-gaap	Dividends Common Stock DividendsCommonStock	9574000
CY2022Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	7500000
	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.05
	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
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
CY2020	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	77000
CY2022	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	38017000
CY2021	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	37513000
CY2020	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	36611000
CY2021	olp	Dividends Designated To Following Year DividendsDesignatedToFollowingYear	2085000
CY2020	olp	Dividends Designated To Following Year DividendsDesignatedToFollowingYear	9261000
CY2020	olp	Return Of Capital ReturnOfCapital	3265000
CY2022	olp	Dividends Designated From Prior Year DividendsDesignatedFromPriorYear	2085000
CY2021	olp	Dividends Designated From Prior Year DividendsDesignatedFromPriorYear	9261000
CY2021Q4	olp	Number Of Properties Included In Lease Split And Assignment Agreement NumberOfPropertiesIncludedInLeaseSplitAndAssignmentAgreement	6
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
CY2020	olp	Percentage Of Distributions Representing Ordinary Income To Shareholders PercentageOfDistributionsRepresentingOrdinaryIncomeToShareholders	0.45
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
CY2020	olp	Percentage Of Distributions Representing Capital Gains To Shareholders PercentageOfDistributionsRepresentingCapitalGainsToShareholders	0.47
CY2020	olp	Percentage Of Distributions Representing Return Of Capital To Shareholders PercentageOfDistributionsRepresentingReturnOfCapitalToShareholders	0.08
CY2022	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2021	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2020	olp	Distributions Made To Stockholders Percentage DistributionsMadeToStockholdersPercentage	1
CY2022	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	37915000
CY2021	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	37478000
CY2020	olp	Dividends Declared Reconciliation DividendsDeclaredReconciliation	36564000
CY2022	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	102000
CY2021	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	35000
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2022	olp	Dividends Designated From Following Year DividendsDesignatedFromFollowingYear	4240000
CY2022	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	44342000
CY2021	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	44689000
CY2020	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	33061000
	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.03
	olp	Percentage Of Discount On Common Stock Purchased Through Dividend Reinvestment Plan PercentageOfDiscountOnCommonStockPurchasedThroughDividendReinvestmentPlan	0.05
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
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2021Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	20816000
CY2021Q2	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	20422000
CY2021Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	20436000
CY2021Q4	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	21066000
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	82740000
CY2021Q2	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	21491000
CY2021Q3	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	1277000
CY2021Q4	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	2695000
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	25463000
CY2021Q1	us-gaap	Profit Loss ProfitLoss	2957000
CY2021Q2	us-gaap	Profit Loss ProfitLoss	23332000
CY2021Q3	us-gaap	Profit Loss ProfitLoss	6212000
CY2021Q4	us-gaap	Profit Loss ProfitLoss	6533000
CY2021	us-gaap	Profit Loss ProfitLoss	39034000
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	2962000
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	23329000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	6059000
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	6507000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	38857000
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20003000
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20013000
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20115000
CY2021Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20210000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20086000
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20061000
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20187000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20273000
CY2021Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20369000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20264000
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.13
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2022Q4	olp	Additional Rental Income From Ground Lease Tenant Recognized AdditionalRentalIncomeFromGroundLeaseTenantRecognized	4626000
CY2022Q2	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	5388000
CY2022Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	409175000
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	179192000
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	651112000
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	49292000
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	181805000
CY2022Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	697791000
CY2022Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	879596000
CY2022Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	173143000
CY2021	us-gaap	Real Estate And Accumulated Depreciation Life Used For Depreciation1 RealEstateAndAccumulatedDepreciationLifeUsedForDepreciation1	P40Y
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	837641000
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	839058000
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	835837000
CY2022	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	59654000
CY2021	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	28837000
CY2020	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	26444000
CY2022	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	17699000
CY2021	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	28064000
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	22441000
CY2021	olp	Sec Schedule1228 Real Estate Companies Investment In Real Estate Cost Of Investment In Real Estate Held For Sale SecSchedule1228RealEstateCompaniesInvestmentInRealEstateCostOfInvestmentInRealEstateHeldForSale	2190000
CY2020	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	782000
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
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	160664000
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	147136000
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	135302000
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
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	17941000
CY2022	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5992000
CY2021	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	3246000
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5755000
CY2021	olp	Sec Schedule1228 Real Estate Companies Investment In Real Estate Accumulated Depreciation Investment In Real Estate Held For Sale SecSchedule1228RealEstateCompaniesInvestmentInRealEstateAccumulatedDepreciationInvestmentInRealEstateHeldForSale	920000
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	352000
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
CY2022Q4	olp	Real Estate Federal Income Tax Basis Difference Amount RealEstateFederalIncomeTaxBasisDifferenceAmount	22018000

Files In Submission

Name	View Source	Status
FilingSummary.xml	Edgar Link	unprocessable
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Financial_Report.xlsx	Edgar Link	pending
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olp-20221231.xsd	Edgar Link	pending
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olp-20221231_lab.xml	Edgar Link	unprocessable

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$OLP
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2023 Q1 Form 10-K Financial Statement

#000155837023003726 Filed on March 14, 2023

Income Statement

Balance Sheet

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$OLP ONE LIBERTY PROPERTIES INC Stock $olp

2023 Q1 Form 10-K Financial Statement

#000155837023003726 Filed on March 14, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OLP
ONE LIBERTY PROPERTIES INC Stock $olp