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Note 4 - Prepaid Expenses and Other Current Assets (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

September 30,

   

December 31,

 
   

2023

   

2022

 
                 

Prepaid expenses

  $ 3,035     $ 28,028  

Tax Receivable – Canadian GST

    4,412       2,210  
    $ 7,447     $ 30,238