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Note 10 - Leases (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Difference Between Rental Income Contracted and Rental Income Recognized |  | $ 22,500 | $ 33,800 | $ 22,600
Other Assets [Member] |  |  |  |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization |  | 26,200 |  |
Other Liabilities [Member] |  |  |  |
Finance Lease, Liability | [1],[2] | $ 24,432 |  |
Minimum [Member] |  |  |  |
Lessee, Operating Lease, Remaining Lease Term (Year) |  | 1 year |  |
Maximum [Member] |  |  |  |
Lessee, Operating Lease, Remaining Lease Term (Year) |  | 47 years 10 months 24 days |  |
Lessee, Operating Lease, Renewal Term (Year) |  | 75 years |  |
Shopping Centers [Member] | Minimum [Member] |  |  |  |
Lessor, Operating Lease, Term of Contract (Year) |  | 5 years |  |
Shopping Centers [Member] | Maximum [Member] |  |  |  |
Lessor, Operating Lease, Term of Contract (Year) |  | 25 years |  |
Annual Minimum Rentals Plus Incremental Rents [Member] | Rental Revenue [Member] | Customer Concentration Risk [Member] |  |  |  |
Concentration Risk, Percentage |  | 98.00% | 98.00% | 98.00%
[1] | Includes bargain purchase options exercisable in 2023 related to two properties.
[2] | Operating lease liabilities are included in Operating lease liabilities and financing lease liabilities are included in Other liabilities on the Company's Consolidated Balance Sheets.

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