XML 48 R37.htm IDEA: XBRL DOCUMENT v3.5.0.2

Real Estate Acquisitions - Pro forma information (Details) $ / shares in Units, shares in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 01, 2015 property	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) property $ / shares shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) $ / shares shares
Real estate acquisition costs		$ 162,000	$ 90,000	$ 610,000	$ 417,000
Business acquisition pro forma information:
Pro forma unaudited revenues				55,519,000		$ 73,037,000
Pro forma net income attributable to One Liberty Properties, Inc.				$ 21,128,000		$ 20,560,000
Pro forma weighted average number of common shares outstanding:
Basic (in shares) | shares				16,605		15,971
Diluted (in shares) | shares				16,722		16,079
Pro forma per common share attributable to common stockholders:
Basic (in dollars per share) | $ / shares				$ 1.23		$ 1.23
Diluted (in dollars per share) | $ / shares				$ 1.22		$ 1.23
2016 Acquisitions
Number of real estate properties acquired | property				9
Real estate acquisition costs				$ 596,000
Business acquisition pro forma information:
Revenues already included in the results of operations				2,111,000
Net income already included in the results of operations				136,000
Wheaton, Illinois and Beachwood, Ohio lands
Number of real estate properties acquired | property	2
Business acquisition pro forma information:
Pro forma unaudited revenues				2,024,000		$ 2,700,000
Pro forma unaudited net income				1,786,000		$ 2,344,000
Revenues already included in the results of operations				386,000
Net income already included in the results of operations				$ 386,000

X

- Definition

Representing Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Extraordinary Items, Per Share.

+ References

No definition available.

+ Details

Name:	olp_BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeExtraordinaryItemsPerShareAbstract
Namespace Prefix:	olp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Representing Business Acquisition, Pro Forma Weighted Average Number of Shares Outstanding.

+ References

No definition available.

+ Details

Name:	olp_BusinessAcquisitionProFormaWeightedAverageNumberOfSharesOutstandingAbstract
Namespace Prefix:	olp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The pro forma basic number of weighted average shares for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

No definition available.

+ Details

Name:	olp_BusinessAcquisitionProFormaWeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The pro forma diluted number of weighted average shares for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

No definition available.

+ Details

Name:	olp_BusinessAcquisitionProFormaWeightedAverageNumberOfSharesOutstandingDiluted
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Expense consisting of acquisition related transaction costs.

+ References

No definition available.

+ Details

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

X

- Definition

Represents the number of real estate investments acquired by the entity during the period.

+ References

No definition available.

+ Details

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

X

- Definition

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

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

X

- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

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

X

- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

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

X

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

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

X

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

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

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=olp_AcquisitionsIn2016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=olp_PropertiesLocatedInWheatonIllinoisAndBeachwoodOhioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: