Note 12 - Noncontrolling Interests - Redemption Value of the Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Balance		$ 15,784	$ 17,943
Fair value allocation to partnership interest	[1]	2,068	0
Income		529	845
Distributions	[1]	(2,597)	(845)
Balance		$ 15,784	$ 17,943

[1] During January 2021, KIM RDC, LLC ("KIM RDC"), a wholly owned subsidiary of the Company, and KP Lancewood LLC ("KPR Member") entered into a joint venture agreement wherein KIM RDC has a 100% controlling interest and KPR Member is entitled to a profit participation. The joint venture acquired two operating properties for a gross fair value of $104.0 million (see Footnote 4 of the Company's Condensed Consolidated Financial Statements). This joint venture was accounted for as a consolidated VIE (see Footnote 13 of the Company's Condensed Consolidated Financial Statements). During June 2021, the two joint venture properties were sold for a combined sales price of $108.0 million of which the KPR Member received a distribution of $2.1 million.