XML 44 R53.htm IDEA: XBRL DOCUMENT
v2.4.1.9

RELATED PARTY TRANSACTIONS (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
RELATED PARTY TRANSACTIONS |  |  |
Number of shares of common stock owned by the related party | 15,728,000 us-gaap_CommonStockSharesOutstanding | 15,221,000 us-gaap_CommonStockSharesOutstanding |
Number of shares purchased by the related party under the dividend reinvestment plan | 227,000 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan | 210,000 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan | 215,000 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Amount of fee reduction | $ 445,000 olp_RelatedPartyTransactionAmountOfReductionInFeePaid |  |
Cost of plans charged to operations | 1,833,000 us-gaap_AllocatedShareBasedCompensationExpense | 1,440,000 us-gaap_AllocatedShareBasedCompensationExpense | 1,223,000 us-gaap_AllocatedShareBasedCompensationExpense
Annual lease rent | 296,875 olp_OperatingLeasesAnnualFixedRent |  |
Gould |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Number of shares of common stock owned by the related party | 1,704,765 us-gaap_CommonStockSharesOutstanding / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 1,597,304 us-gaap_CommonStockSharesOutstanding / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember |
Ownership percentage held by the related party | 10.50%olp_RelatedPartyTransactionOwnershipPercentageHeld / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 10.20%olp_RelatedPartyTransactionOwnershipPercentageHeld / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember |
Number of shares purchased by the related party under the dividend reinvestment plan | 106,761 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 69,595 us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember |
Number of shares purchased by the related party in the open market | 700 olp_NumbersOfSharesPurchasedInOpenMarketDuringPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 3,700 olp_NumbersOfSharesPurchasedInOpenMarketDuringPeriod / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember |
Amount of insurance reimbursed | 400,000 olp_RelatedPartyTransactionAmountOfPropertyInsuranceReimbursed / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 359,000 olp_RelatedPartyTransactionAmountOfPropertyInsuranceReimbursed / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember | 305,000 olp_RelatedPartyTransactionAmountOfPropertyInsuranceReimbursed / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_GouldInvestorsLPMember
Majestic |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Annual fee paid in consideration for providing services | 2,669,000 olp_RelatedPartyTransactionAnnualFeesPaidForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 2,725,000 olp_RelatedPartyTransactionAnnualFeesPaidForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 2,725,000 olp_RelatedPartyTransactionAnnualFeesPaidForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember
Property management costs allocated to real estate expenses annually | 850,000 olp_RelatedPartyTransactionPropertyManagementCostAllocatedToRealEstateExpensesAnnually / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 600,000 olp_RelatedPartyTransactionPropertyManagementCostAllocatedToRealEstateExpensesAnnually / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 600,000 olp_RelatedPartyTransactionPropertyManagementCostAllocatedToRealEstateExpensesAnnually / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember
Additional payment for the entity's share of all direct office expenses | 186,000 olp_RelatedPartyTransactionAdditionalPaymentForShareOfDirectOfficeExpenses / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 175,000 olp_RelatedPartyTransactionAdditionalPaymentForShareOfDirectOfficeExpenses / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember | 175,000 olp_RelatedPartyTransactionAdditionalPaymentForShareOfDirectOfficeExpenses / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_MajesticPropertyManagementCorpMember
Chairman |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Fee paid | 250,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember | 250,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember | 250,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember
Vice Chairman |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Fee paid | 100,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_BoardOfDirectorsViceChairmanMember | 100,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_BoardOfDirectorsViceChairmanMember | 100,000 olp_RelatedPartyTransactionAmountPaid / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_BoardOfDirectorsViceChairmanMember
Subsidiary of Gould |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Annual lease rent | 42,000 olp_OperatingLeasesAnnualFixedRent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_SubsidiaryOfGouldInvestorsLPMember | 41,000 olp_OperatingLeasesAnnualFixedRent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_SubsidiaryOfGouldInvestorsLPMember | 41,000 olp_OperatingLeasesAnnualFixedRent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_SubsidiaryOfGouldInvestorsLPMember
Executive officers and others |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Cost of plans charged to operations | $ 1,045,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_ExecutiveOfficersAndOthersMember | $ 867,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_ExecutiveOfficersAndOthersMember | $ 743,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = olp_ExecutiveOfficersAndOthersMember

X
- Definition Number of shares was purchased in open market during the period. + References No definition available. + Details
Name: | olp_NumbersOfSharesPurchasedInOpenMarketDuringPeriod
Namespace Prefix: | olp_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of annual fixed rent required to be paid by the entity. + References No definition available. + Details
Name: | olp_OperatingLeasesAnnualFixedRent
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount of additional payment to related party for the share of direct office expenses. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionAdditionalPaymentForShareOfDirectOfficeExpenses
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of reimbursement of property insurance under the related party transactions. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionAmountOfPropertyInsuranceReimbursed
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of fee reduction from payment to related party for the services rendered directly. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionAmountOfReductionInFeePaid
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount paid to related parties under related party transaction. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionAmountPaid
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of annual fee paid in consideration for providing services. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionAnnualFeesPaidForServices
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the percentage of ownership held by the related party. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionOwnershipPercentageHeld
Namespace Prefix: | olp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the amount of property management costs allocated to real estate expenses annually. + References No definition available. + Details
Name: | olp_RelatedPartyTransactionPropertyManagementCostAllocatedToRealEstateExpensesAnnually
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=olp_BoardOfDirectorsViceChairmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=olp_ExecutiveOfficersAndOthersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=olp_GouldInvestorsLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=olp_MajesticPropertyManagementCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=olp_SubsidiaryOfGouldInvestorsLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BoardOfDirectorsChairmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |