Quarterly report [Sections 13 or 15(d)]

Note 8 - Notes Payable and Convertible Notes (Details Textual)

v3.26.1
Note 8 - Notes Payable and Convertible Notes (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Jul. 09, 2025
Jul. 07, 2025
Jun. 30, 2026
Jun. 30, 2026
Debt Instrument, Face Amount   $ 250,000    
First Note [Member]        
Debt Instrument, Face Amount   $ 250,000 $ 250,000 $ 250,000
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 0.47    
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger   80.00%    
Debt Instrument Convertible, Average Closing Price, Days   15    
Debt Instrument Convertible, Volume-weighted Average Price, Days   10    
Debt Instrument Convertible, Lowest VWAP, Days   3    
Debt Instrument, Convertible, Three Day Lowest Volume Weighted Average Price, Number of Trading Days   45    
First Note [Member] | Conversion of Promissory Notes Payable into Common Stock [Member]        
Debt Conversion, Original Debt, Amount     $ 64,714 124,344
Debt Conversion, Converted Accrued Interest, Amount       $ 15,000
Debt Conversion, Converted Instrument, Shares Issued (in shares)     106,686 199,510
Long-Term Debt, Gross     $ 125,656 $ 125,656
First Note [Member] | Conversion of Promissory Notes Payable into Common Stock [Member] | Minimum [Member]        
Debt Instrument, Convertible, Conversion Price (in dollars per share)     $ 0.47 $ 0.47
First Note [Member] | Conversion of Promissory Notes Payable into Common Stock [Member] | Maximum [Member]        
Debt Instrument, Convertible, Conversion Price (in dollars per share)     $ 0.81 $ 0.81
Second Note [Member]        
Debt Instrument, Interest Rate, Stated Percentage 12.00%      
Debt Instrument, Maturity, Term after Purchase Price Payment Date (Day) 360 days      
Debt Instrument, Interest Rate if Default 18.00%