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Note 5 - Notes Payable (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Short-term Debt [Table Text Block]
 

Due Date

 

As of

June 30, 2021

  

As of

December 31, 2020

 

Promissory note 2019

March 31, 2021

 $-  $1,490,833 

Promissory note 2020

March 31, 2021

  -   1,464,146 

2018 Investor Loan

March 31, 2021

  -   1,721,776 

Total Notes Payable, gross

  -   4,676,755 

Less: Unamortized discount

  -   (244,830)

Total Notes Payable, net

 $-  $4,431,925