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Note 5 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

2021

   

2020

 

Computer equipment and software

  $ 140,775     $ 139,551  

Office furniture and equipment

    70,814       70,348  

Website development costs

    402,975       402,306  
      614,564       612,205  

Accumulated depreciation

    (574,071 )     (552,357 )
    $ 40,493     $ 59,848