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Note 15 - Related Party Transactions - (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Receivables due from related parties	$ 1,825		$ 1,918
Revenue from related parties	10,071	$ 11,132
Ground lease revenues	10,071	11,132
Samuel M. Spiritos [Member] \| Shulman Rogers L L P [Member]
Related Party Transaction [Line Items]
Related party legal fees		$ 100
Maximum [Member] \| Samuel M. Spiritos [Member] \| Shulman Rogers L L P [Member]
Related Party Transaction [Line Items]
Related party legal fees	100
Other Assets, Net [Member]
Related Party Transaction [Line Items]
Receivables due from related parties	1,100		1,100
Payables Due to Related Parties [Member] \| Borrowed by Company for Working Capital [Member] \| Due To Properties [Member]
Related Party Transaction [Line Items]
Payables due to related parties	$ 100		$ 100