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Note 5 - Lease Intangibles - Amortization Expense (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
2023 $ 17,526  
2024 17,526  
2025 15,670  
2026 4,107  
2027 0  
Thereafter 0  
Total $ 54,829 $ 257,171