XML 65 R54.htm IDEA: XBRL DOCUMENT v3.22.2

EARNINGS PER COMMON SHARE - Shares of common stock underlying RSUs (Details) - shares	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2019
Earnings Per Common Share
Number of underlying shares			230,752	223,802
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric			115,376	111,901
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric			64,488	111,901
Total			179,864	223,802
Common shares not included in calculation due applicable metric had not been met at measurement dates			50,888
August 3, 2021
Earnings Per Common Share
Number of underlying shares			80,700
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric			40,350
Total			40,350
Common shares not included in calculation due applicable metric had not been met at measurement dates			40,350
August 3, 2020
Earnings Per Common Share
Number of underlying shares			75,026	75,026
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric			37,513	37,513
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric			37,513	37,513
Total			75,026	75,026
July 1, 2019
Earnings Per Common Share
Number of underlying shares			75,026	75,026
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric			37,513	37,513
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric			26,975	37,513
Total			64,488	75,026
Common shares not included in calculation due applicable metric had not been met at measurement dates			10,538
July 1, 2018
Earnings Per Common Share
Number of underlying shares				73,750
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric				36,875
Number of shares in diluted weighted average number of shares pursuant to stockholder return metric				36,875
Total				73,750
Restricted stock units
Earnings Per Common Share
Number of shares forfeited	10,538		10,538
Number of shares vested	64,488	73,750	64,488	73,750
Restricted stock units | July 1, 2019
Earnings Per Common Share
Number of shares forfeited			10,538
Number of shares vested			64,488
Restricted stock units | July 1, 2018
Earnings Per Common Share
Number of shares vested				73,750
Restricted stock units | Awards granted in 2018
Earnings Per Common Share
Number of shares forfeited					2,500
Restricted stock units | Awards granted in 2019
Earnings Per Common Share
Number of shares forfeited					2,750

X

- Definition

Represents the common shares attributable to share based payment arrangement not included in calculation of diluted weighted average number of shares due to applicable conditions had not been met at the respective measurement date.

+ References

No definition available.

+ Details

Name:	olp_CommonSharesNotIncludedAttributableToShareBasedPaymentArrangementsDueToApplicableMetrics
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the incremental shares to incremental common shares attributable to share based payment arrangement due to return on capital metric

+ References

No definition available.

+ Details

Name:	olp_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToReturnOnCapitalMetric
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the incremental shares to incremental common shares attributable to share based payment arrangement due to Stockholder return metric.

+ References

No definition available.

+ Details

Name:	olp_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsDueToStockholderReturnMetric
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the underlying number of shares from which is derived the additional shares to be included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

No definition available.

+ Details

Name:	olp_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares
Namespace Prefix:	olp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_EarningsPerShareBasicLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126962052&loc=d3e4991-113900

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1707-109256

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 28A
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1500-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 23
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e1757-109256

+ Details

Name:	us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(03)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(02)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AwardDateAxis=olp_AwardDateAugust32021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=olp_August32020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=olp_July12019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=olp_July12018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=olp_AwardsGrantedIn2018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardDateAxis=olp_AwardsGrantedIn2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: