Note 8 - Mortgage and Other Indebtedness - Schedule of Minimum Debt Service Coverage (Parenthetical) (Details) - Cromwell Field Shopping Center [Member]	Dec. 31, 2025	Dec. 31, 2024	[1]	Dec. 31, 2023
Debt Instrument [Line Items]
Minimum debt service coverage ratio		1.2		1.2
Forecast [Member]
Debt Instrument [Line Items]
Minimum debt service coverage ratio	1.35

[1] The debt service coverage ratio testing commenced December 31, 2023 with the following requirements: (i) 1.20 to 1.00 as of December 31, 2023; (ii) 1.20 to 1.00 as of December 31, 2024 and (iii) 1.35 to 1.00 as of December 31, 2025 and for the remaining term of the loan.