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Note 5 - Accounts Payable and Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
   

September 30,

2023

   

December 31,

2022

 
                 

Accounts payable

  $ 85,532     $ 81,927  

Accrued fees and liabilities

    17,694       51,869  
    $ 103,226     $ 133,796