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Note 4 - Related Party Transactions (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Preferred Stock, Value, Shares Redeemed During Period $ (749,995) $ (749,995)    
Series B Preferred Stock [Member]        
Preferred Stock, Value, Shares Redeemed During Period 749,995   $ 2,937,749 $ 95,284
Series B-1 Preferred Stock [Member]        
Preferred Stock, Value, Shares Redeemed During Period       $ 2,272,701
Related Party [Member]        
Preferred Stock, Value, Shares Redeemed During Period 256,404 $ 242,451    
Accounts Payable $ 0   $ 0