v3.22.2.2
Note 9 Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

June 30, 2022

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Liabilities:

                

Warrant liability

        105,699   105,699 

Total

 $  $  $105,699  $105,699 
  

December 31, 2021

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Liabilities:

                

Warrant liability

 $  $  $372,730  $372,730 

Total

 $  $  $372,730  $372,730 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 
  

2022

  

2021

  

2022

  

2021

 

Balance, beginning of period

 $283,720   1,040,305   372,730   1,963,785 

Change in fair value of warrant liability

  (178,021)  (189,146)  (267,031)  (1,112,626)

Balance, end of period

 $105,699  $851,159  $105,699  $851,159