Note 16 - Noncontrolling Interests and Redeemable Noncontrolling Interests - Redemption Value of the Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Balance		$ 15,784	$ 17,943
Fair value allocation to partnership interest	[1]	2,068	0
Income		751	1,022
Distributions	[1]	(2,819)	(1,021)
Adjustment to estimated redemption value (2)	[2]	(2,304)	(2,160)
Balance		$ 13,480	$ 15,784

[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 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.

[2] The Company recorded an adjustment to the estimated redemption fair market value of a noncontrolling interest in accordance with the provisions of the respective joint venture agreement and ASC 480, Accounting for Redeemable Equity Instruments. The Company assesses the fair market value of this noncontrolling interest on a recurring basis and determined that its valuation was classified within Level 3 of the fair value hierarchy. The estimated fair market value of this noncontrolling interest was based upon a discounted cash flow model, for which a capitalization rate of 5.50% and discount rate of 6.50% were utilized in the model based upon unobservable rates that the Company believes to be within a reasonable range of current market rates.