XML 57 R42.htm IDEA: XBRL DOCUMENT
v3.7.0.1

REAL ESTATE INVESTMENTS AND MINIMUM FUTURE RENTALS - Pro Forma Information (Details) $ / shares in Units, shares in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2015 property | Dec. 31, 2016 USD ($) property $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2014 USD ($)
Real estate acquisition costs |  | $ 596,000 | $ 449,000 | $ 479,000
Business acquisition pro forma information: |  |  |  |
Pro forma unaudited revenues |  | 74,612,000 | 73,210,000 |
Pro forma net income attributable to One Liberty Properties, Inc. |  | $ 25,620,000 | $ 21,571,000 |
Pro forma weighted average number of common shares outstanding: |  |  |  |
Basic (in shares) | shares |  | 16,768 | 15,971 |
Diluted (in shares) | shares |  | 16,882 | 16,079 |
Pro forma per common share attributable to common stockholders: |  |  |  |
Basic (in dollars per share) | $ / shares |  | $ 1.47 | $ 1.23 |
Diluted (in dollars per share) | $ / shares |  | $ 1.46 | $ 1.23 |
2016 Acquisitions |  |  |  |
Number of real estate properties acquired | property |  | 9 |  |
Real estate acquisition costs |  | $ 582,000 |  |
Pro forma per common share attributable to common stockholders: |  |  |  |
Revenues already included in the results of operations |  | 4,251,000 |  |
Net income already included in the results of operations |  | $ 654,000 |  |
Wheaton, Illinois and Beachwood, Ohio lands |  |  |  |
Number of real estate properties acquired | property | 2 |  |  |

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 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_LandLocatedInWheatonIllinoisAndBeachwoodOhioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |