Note 2 - Accounting Policies and Related Matters - Schedule of Depreciation and Amortization of Real Estate Assets and Liabilities (Details)	Dec. 31, 2024
Building [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	12 years 6 months
Building [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	49 years
Improvements [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	5 years
Improvements [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	15 years
Lease Intangibles and Tenant Improvements [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	1 month
Lease Intangibles and Tenant Improvements [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	19 years
Furniture and Fixtures [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life	7 years