XML 12 R39.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Lease Termination Fee Income (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 31, 2015 | Mar. 31, 2015 | Jun. 30, 2014 | Dec. 31, 2015 | Sep. 30, 2015
Lease termination fee received from a retail tenant in a lease buy-out transaction |  | $ 650,000 | $ 1,269,000 |  |
Write-off of entire balance of the unbilled rent receivable and the intangible lease asset |  |  | $ 150,000 |  |
Write-off of entire balance of the unbilled rent receivable |  | $ 226,000 |  |  | $ 315,000
Subsequent event |  |  |  |  |
Lease termination fee received from a retail tenant in a lease buy-out transaction | $ 1,286,000 |  |  |  |
Write-off of entire balance of the unbilled rent receivable and the intangible lease asset |  |  |  | $ 179,000 |

X
- Definition Lease Termination Fee, Gross + References No definition available. + Details
Name: | olp_LeaseTerminationFeeGross
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. + References No definition available. + Details
Name: | olp_WriteoffOfUnbilledRentReceivable
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Write-off of Unbilled Rent Receivable and Intangible Lease Asset + References No definition available. + Details
Name: | olp_WriteoffOfUnbilledRentReceivableAndIntangibleLeaseAsset
Namespace Prefix: | olp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |