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Note 5 - Accounts Payable and Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
  

March 31,

2022

  

December 31,

2021

 
         

Accounts payable

 $84,985  $61,836 

Accrued fees and expenses

  34,214   34,362 
  $119,199  $96,198