XML 38 R44.htm IDEA: XBRL DOCUMENT v2.4.1.9

LEASE TERMINATION FEE INCOME (Details) (USD $)	1 Months Ended
	Jun. 30, 2014
LEASE TERMINATION FEE INCOME
Lease termination fee received from a retail tenant in a lease buy-out transaction	$ 1,269,000olp_LeaseTerminationFeeGross
Write-off of entire balance of the unbilled rent receivable and the intangible lease asset	$ 150,000olp_WriteoffOfUnbilledRentReceivableAndIntangibleLeaseAsset

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

- Details

Name:	olp_LeaseTerminationFeeIncomeDisclosureAbstract
Namespace Prefix:	olp_
Data Type:	xbrli:stringItemType
Balance Type:	na
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