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Note 5 - Lease Intangibles (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Finite-Lived Intangible Assets, Gross, Total | $ 3,776,654 | $ 4,110,139
Below Market Lease, Net | 8,625 | 13,266
Amortization of Below Market Lease | 4,641 | 4,974
Real Estate Assets Held for Sale [Member] |  |
Finite-Lived Intangible Assets, Gross, Total | $ 0 | $ 0

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