XML 26 R15.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Investment in Unconsolidated Joint Ventures | 3 Months Ended
--- | ---
Mar. 31, 2016
Investment in Unconsolidated Joint Ventures |
Investment in Unconsolidated Joint Ventures | Note 7 — Investment in Unconsolidated Joint Ventures At March 31, 2016 and December 31, 2015, the Company’s five unconsolidated joint ventures each own and operate one property. Such ventures are not considered VIEs (see Note 2). The Company’s equity investment in such unconsolidated joint ventures at such dates totaled $11,076,000 and $11,350,000, respectively. The Company recorded equity in earnings of $209,000 and $147,000 for the three months ended March 31, 2016 and 2015, respectively.

X
- Definition This item represents disclosure of information related to investments in unconsolidated joint ventures. + References No definition available. + Details
Name: | olp_InvestmentsInUnconsolidatedJointVentureTextBlock
Namespace Prefix: | olp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | olp_InvestmentsInUnconsolidatedJointVenturesAbstract
Namespace Prefix: | olp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration