Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Capitalization and Equity Structure (Tables)

v3.23.2
Note 12 - Capitalization and Equity Structure (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Exercise

   

Term

                                 

Source

 

Price

   

(Years)

   

December 31, 2022

   

Issued

   

Exercised

   

June 30, 2023

 

2021 Warrants

  $ 12.81       5       273                   273  

June 2020 Investor Warrants

  $ 5.18       5.5       127                   127  

June 2020 Placement Agent Warrants

  $ 5.64       5       39                   39  

December 2019 Warrants

  $ 8.10       5       556                   556  

December 2019 Placement Agent Warrants

  $ 8.44       5       52                   52  

May 2019 Warrants

  $ 3.52       5       193                   193  
                    1,240                   1,240  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

June 30, 2023

   

December 31, 2022

 

Current share price

  $ 1.43     $ 1.19  

Conversion price

  $ 12.81     $ 12.81  

Risk-free interest rate

    4.64 %     4.21 %

Expected term (years)

    2.61       3.11  

Volatility of stock

    72.6 %     99.6 %
   

June 30, 2023

   

December 31, 2022

 

Current share price

  $ 1.43     $ 1.19  

Conversion price

  $ 5.18     $ 5.18  

Risk-free interest rate

    4.70 %     4.23 %

Expected term (years)

    2.45       2.94  

Volatility of stock

    70.0 %     99.6 %
   

June 30, 2023

   

December 31, 2022

 

Current share price

  $ 1.43     $ 1.19  

Conversion price

  $ 5.64     $ 5.64  

Risk-free interest rate

    4.90 %     4.33 %

Expected term (years)

    1.95       2.44  

Volatility of stock

    62.5 %     73.5 %
   

June 30, 2023

   

December 31, 2022

 

Current share price

  $ 1.43     $ 1.19  

Conversion price

  $ 8.10     $ 8.10  

Risk-free interest rate

    4.89 %     4.32 %

Expected term (years)

    1.97       2.47  

Volatility of stock

    62.2 %     73.3 %
   

June 30, 2023

   

December 31, 2022

 

Current share price

  $ 1.43     $ 1.19  

Conversion price

  $ 8.44     $ 8.44  

Risk-free interest rate

    5.15 %     4.42 %

Expected term (years)

    1.47       1.97  

Volatility of stock

    65.5 %     71.8 %
   

June 30, 2023

   

December 31, 2022

 

Share price

  $ 1.43     $ 1.19  

Conversion price

  $ 3.52     $ 3.52  

Risk-free interest rate

    5.40 %     4.6 %

Expected term (years)

    0.9       1.4  

Volatility of stock

    62.1 %     74.5 %