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Note 4 - Right-of-use Lease With Related Party - Lease Cost (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Right-of-use lease cost, included in general and administrative on the Statements of Operations $ 0 $ 19,793 $ 17,885 $ 39,909