Note 4 - Intangibles - (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule Of Intangible Assets And Liabilities [Line Items]
Net amortization related to above market leases and below market leases	$ 0.1	$ 0.1	$ 0.2	$ 0.2
Weighted average remaining amortization period of below-market lease intangibles			10 months 24 days
In-Place Leases [Member]
Schedule Of Intangible Assets And Liabilities [Line Items]
Net amortization related to intangibles	$ 0.7	$ 1.1	$ 2.3	$ 5.5
Weighted average remaining amortization period of in-place lease intangibles			2 years
Above-Market Leases [Member]
Schedule Of Intangible Assets And Liabilities [Line Items]
Weighted average remaining amortization period of above-market lease intangibles			2 years 4 months 24 days