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Note 11 - Warrants (Tables)
9 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
       

Outstanding and exercisable

 

Range of Exercise prices

   

Number

outstanding

   

Weighted average

remaining life in years

   

Weighted Average

Exercise Price

   

Exercisable

 
                                     
$ 0.20       200,000       1.28     $ 0.20       200,000  
   

2023

   

2022

 
   

# of Shares

   

Weighted Average

Exercise Price

   

# of Shares

   

Weighted Average

Exercise Price

 

Outstanding, beginning of year

    -       -       -       -  
                                 

Issued

    200,000     $ 0.20       -       -  
                                 

Exercised

    -       -       -       -  
                                 

Expired

    -       -       -       -  
                                 

Cancelled

    -       -       -       -  
                                 

Outstanding, end of period

    200,000     $ 0.20       -       -  
                                 

Exercisable, end of period

    200,000     $ 0.20       -       -