Note 10 - Noncontrolling Interests (Details Textual) $ in Millions	1 Months Ended
Jun. 30, 2021 USD ($)	Jan. 31, 2021 USD ($)
KIM RDC, LLC [Member] \| Variable Interest Entity, Primary Beneficiary [Member] \| Discontinued Operations, Disposed of by Sale [Member] \| Disposal of Two Operating Properties [Member]
Number of Properties Sold	2
Disposal Group, Including Discontinued Operation, Consideration	$ 108.0
KIM RDC, LLC [Member] \| Variable Interest Entity, Primary Beneficiary [Member] \| Operating Properties [Member]
Number of Operating Property Acquired		2
Asset Acquisition, Consideration Transferred, Total		$ 104.0
KIM RDC, LLC [Member] \| Joint Venture with KP Lancewood [Member]
Noncontrolling Interest, Ownership Percentage by Parent		100.00%
KPR [Member] \| Discontinued Operations, Disposed of by Sale [Member] \| Disposal of Two Operating Properties [Member]
Distribution Made to Limited Partner, Cash Distributions Paid	$ 2.1

Represents number of operating property acquired.

No definition available.

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- Definition

The number of properties sold during the period.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 55
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 805
-SubTopic 50
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of cash distribution paid to unit-holder of limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120397183&loc=d3e187085-122770

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Details

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