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Note 13 - Fair Value Measurement of Convertible Note Payable (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

June 30, 2023

 

Total

  

Level 1

  

Level 2

  

Level 3

 
                 

Convertible note at fair value

 $2,498,780  $-  $-  $2,498,780 

December 31, 2022

 

Total

  

Level 1

  

Level 2

  

Level 3

 
                 

Convertible note at fair value

 $2,596,203  $-  $-  $2,596,203 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Beginning balance

 $2,596,203 

Purchases and issuances

  - 

Change in fair value for the three months ended March 31, 2023

  (141,991)

Balance at March 31, 2023

 $2,454,212 

Change in fair value for the three months ended June 30, 2023

  44,568 

Ending balance at June 30, 2023

 $2,498,780