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Note 6 - Long-term Debt (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Convertible Debt [Table Text Block]
  

March 31,

2022

  

March 31,

2021

 

Convertible note

 $15,960,000   - 

Less: unamortized debt issuance costs

  (1,915,726

)

  - 

Convertible note payable

 $14,044,274  $- 
         

Current portion of convertible note payable

  10,080,000   - 

Convertible note payable, less current portion

  3,964,273   - 

Convertible note payable

 $14,044,274  $-