XML 52 R42.htm IDEA: XBRL DOCUMENT v3.23.3

SALES OF PROPERTIES (Details)								3 Months Ended				9 Months Ended
	Sep. 20, 2023 USD ($)	May 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Aug. 08, 2022 USD ($)	Jun. 17, 2022 USD ($)	May 02, 2022 USD ($)	Mar. 22, 2022 USD ($)	Dec. 31, 2023 USD ($)	Oct. 31, 2023 USD ($) property	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
SALES OF PROPERTIES
Gain on sale of real estate, net										$ 332,000	$ 4,063,000	$ 5,046,000	$ 16,762,000
Properties disposed of by sale
SALES OF PROPERTIES
Gross Sales Price											31,600,000	13,450,000
Gain on sale of real estate, net											16,762,000	5,046,000
Reduction to Gain on sale of real estate, net, attributable to the write-off of other assets and receivables												190,000
Reduction to Gain on sale of real estate, net, attributable to the write-off of unbilled rent receivable.												$ 123,000	519,000
Reduction to Gain on sale of real estate, net, attributable to the write-off of net unamortized lease liabilities and assets											$ 4,000		$ 4,000
Properties disposed of by sale | TGI Fridays Restaurant, Hauppauge, New York
SALES OF PROPERTIES
Gross Sales Price			$ 4,200,000
Gain on sale of real estate, net			$ 1,534,000
Properties disposed of by sale | Haverty's retail property, Duluth, Georgia
SALES OF PROPERTIES
Gross Sales Price		$ 6,000,000
Gain on sale of real estate, net		$ 3,180,000
Properties disposed of by sale | TGI Fridays Restaurant, Greensboro, North Carolina
SALES OF PROPERTIES
Gross Sales Price	$ 3,250,000
Gain on sale of real estate, net	$ 332,000
Properties disposed of by sale | Wendy's restaurants - 4 properties, Various cities, Pennsylvania
SALES OF PROPERTIES
Gross Sales Price							$ 10,000,000
Gain on sale of real estate, net							$ 4,649,000
Properties disposed of by sale | Orlando Baking industrial property, Columbus, Ohio
SALES OF PROPERTIES
Gross Sales Price						$ 8,500,000
Gain on sale of real estate, net						$ 6,925,000
Properties disposed of by sale | Haverty's retail property, Fayetteville, Georgia
SALES OF PROPERTIES
Gross Sales Price					$ 4,800,000
Gain on sale of real estate, net					1,125,000
Mortgage prepaid on sale of real estate					$ 1,563,000
Properties disposed of by sale | Vacant Retail Property, Columbus, Ohio
SALES OF PROPERTIES
Gross Sales Price				$ 8,300,000
Gain on sale of real estate, net				$ 4,063,000
Properties held-for-sale
SALES OF PROPERTIES
Contracted sale price of property									$ 13,800,000
Properties held-for-sale | Restaurant property
SALES OF PROPERTIES
Number of properties under contract for sale | property									1
Properties held-for-sale | Retail properties
SALES OF PROPERTIES
Number of properties under contract for sale | property									2
Properties held-for-sale | Retail properties | Minimum | Forecast
SALES OF PROPERTIES
Gain on sale of real estate, net								$ 6,000,000
Properties held-for-sale | Retail properties | Maximum | Forecast
SALES OF PROPERTIES
Gain on sale of real estate, net								$ 7,000,000

X

- Definition

Amount of difference between the carrying amount and the sales price of real estate properties sold.

+ References

No definition available.

+ Details

Name:	olp_GainLossOnDispositionOfRealEstate
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Gross proceeds received from the sale of real estate during the current period.

+ References

No definition available.

+ Details

Name:	olp_GrossProceedsFromSaleOfRealEstate
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral upon sale of the property.

+ References

No definition available.

+ Details

Name:	olp_MortgagesPrepaidOnSaleOfProperty
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the number of properties held-for-sale during the period.

+ References

No definition available.

+ Details

Name:	olp_NumberOfPropertiesHeldForSale
Namespace Prefix:	olp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of contracted sale price for property held-for-sale.

+ References

No definition available.

+ Details

Name:	olp_SaleOfPropertyContractSalePrice
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of other assets and receivables written off due to sale of related real estate property.

+ References

No definition available.

+ Details

Name:	olp_SaleOfRealEstateOtherAssetsAndReceivables
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of unbilled rent receivable written off during the period relating to properties sold.

+ References

No definition available.

+ Details

Name:	olp_StraightLineRentReceivableWrittenOffRelatingToPropertySold
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the amount of write-off of net unamortized intangible lease liabilities and assets.

+ References

No definition available.

+ Details

Name:	olp_WriteOffNetUnamortizedIntangibleLeaseLiabilitiesAndAssets
Namespace Prefix:	olp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482130/360-10-45-5

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-3

+ Details

Name:	us-gaap_GainLossOnSaleOfProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_TgiFridaySRestaurantHauppaugeNewYorkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_HavertysRetailPropertyDuluthGeorgiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_TgiFridaysRestaurantGreensboroNorthCarolinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_FourRestaurantPropertiesLocatedInPennsylvaniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_OrlandoBakingIndustrialPropertyColumbusOhioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_HavertysRetailPropertyFayettevilleGeorgiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_VacantRetailPropertyColumbusOhioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_RestaurantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=olp_RetailPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: