Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Capitalization and Equity Structure (Tables)

v3.24.1.u1
Note 11 - Capitalization and Equity Structure (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Exercise

   

Remaining term

                                 

Source

 

Price

   

(Years)

   

December 31, 2023

   

Issued

   

Exercised

   

March 31, 2024

 

2021 Warrants

  $ 12.81       1.9       273                   273  

June 2020 Investor Warrants

  $ 5.18       1.7       127                   127  

June 2020 Placement Agent Warrants

  $ 5.64       1.2       39                   39  

December 2019 Warrants

  $ 8.10       1.2       556                   556  

December 2019 Placement Agent Warrants

  $ 8.44       0.7       52                   52  

May 2019 Warrants

  $ 1.55       0.1       193                   193  
                      1,240                   1,240  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

March 31, 2024

   

December 31, 2023

 

Current share price

  $ 1.36     $ 2.50  

Conversion price

  $ 12.81     $ 12.81  

Risk-free interest rate

    4.65 %     4.20 %

Expected term (years)

    1.86       2.11  

Volatility of stock

    94.2 %     76.5 %
   

March 31, 2024

   

December 31, 2023

 

Current share price

  $ 1.36     $ 2.50  

Conversion price

  $ 5.18     $ 5.18  

Risk-free interest rate

    4.73 %     4.26 %

Expected term (years)

    1.69       1.94  

Volatility of stock

    95.4 %     78.2 %
   

March 31, 2024

   

December 31, 2023

 

Current share price

  $ 1.36     $ 2.50  

Conversion price

  $ 5.64     $ 5.64  

Risk-free interest rate

    4.95 %     4.54 %

Expected term (years)

    1.19       1.44  

Volatility of stock

    102.1 %     83.0 %
   

March 31, 2024

   

December 31, 2023

 

Current share price

  $ 1.36     $ 2.50  

Conversion price

  $ 8.10     $ 8.10  

Risk-free interest rate

    4.93 %     4.53 %

Expected term (years)

    1.22       1.47  

Volatility of stock

    101.3 %     82.3 %
   

March 31, 2024

   

December 31, 2023

 

Current share price

  $ 1.36     $ 2.50  

Conversion price

  $ 8.44     $ 8.44  

Risk-free interest rate

    5.23 %     4.82 %

Expected term (years)

    0.72       0.97  

Volatility of stock

    123.4 %     85.2 %
   

March 31, 2024

   

December 31, 2023

 

Share price

  $ 1.36     $ 1.88 (1)

Conversion price

  $ 1.55     $ 3.52  

Risk-free interest rate

    5.48 %     5.3 %

Expected term (years)

    0.1       0.4  

Volatility of stock

    92.2 %     77.5 %