Note 3 - RPT Merger (Details Textual) $ in Thousands			3 Months Ended
		Jan. 02, 2024 USD ($) ft² shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($) ft²
Gross Leasable Area (Square Foot) | ft²				628
Business Combination, Acquisition Related Costs			$ 25,246	$ (0)
Class N Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage	[1]		7.25%
RPT [Member]
Number of Properties Acquired		56
Gross Leasable Area (Square Foot) | ft²		13,300,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Per Each Acquired Company Share (in shares) | shares		0.6049
Business Combination, Acquisition Related Costs		$ 19,100	$ 25,200
Payments to Acquire Businesses, Fractional Shares		100
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		1,400,000	1,442,460
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual			44,700
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual			$ 1,400
RPT [Member] | Line of Credit [Member]
Repayments of Long-Term Debt		$ 130,000
RPT [Member] | Series D Cumulative Convertible Perpetual Preferred Shares [Member]
Preferred Stock, Dividend Rate, Percentage		7.25%
RPT [Member] | Class N Preferred Stock [Member]
Business Combination, Preferred Share Right to be Converted to Depository Share (in shares) | shares		0.001
RPT [Member] | Property Net Lease Joint Venture [Member]
Number of Properties Acquired		49	49
Business Acquisition, Percentage of Voting Interests Acquired		6.00%
RPT [Member] | Wholly Owned Properties [Member]
Number of Properties Acquired		43
RPT [Member] | Consolidated Properties [Member]
Number of Properties Acquired		13

[1] In connection with the RPT Merger, the Company issued 1,849 shares of Class N Cumulative Convertible Perpetual Preferred Shares with a par value of $1.00 per share, represented by 1,848,539 depositary shares, which had a fair market value of $105.6 million. The Class N Preferred Stock depositary shares are convertible at any time by the holders to 2.3071 of the Company’s common shares or under certain circumstances by the Company’s election. As of March 31, 2024, the Class N Preferred Stock was potentially convertible into 4.3 million shares of common stock.