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Note 11 - Related Parties (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Schedule of Related Party Transactions [Table Text Block]
       
  

2023

  

2022

 
         

Consulting

 $135,000  $90,000 

Selling general and administrative

  79,913   65,742 

Share-based compensation to directors and officers

  1,442   40,761 
  $216,355  $196,503