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Note 13 - Related Party Transactions (Details Textual) - Chief Executive Officer [Member] - USD ($)
12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2022
Operating Lease, Expense $ 78,000 $ 82,000  
Lessee, Operating Lease, Renewal Term     2 years
Accrued Rent $ 30,000 $ 15,000