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Note 6 - Notes Payable (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Short-term Debt [Table Text Block]
 

Due Date

 

December 31, 2021

   

December 31, 2020

 

2018 Investor loan

March 31, 2021

  $ -     $ 1,721,776  

Promissory note 2019

March 27, 2021

    -       1,490,833  

Promissory note 2020

March 31, 2021

    -       1,464,146  

Total Notes Payable, gross

      -       4,676,755  

Less: Unamortized discount

      -       244,830  

Total Notes Payable, net

    $ -     $ 4,431,925