Quarterly report [Sections 13 or 15(d)]

Note 11 - Capitalization and Equity Structure (Tables)

v3.25.2
Note 11 - Capitalization and Equity Structure (Tables)
6 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
                                                     

Source

 

Exercise Price

   

Remaining term (Years)

   

December 31, 2024

   

Issued

   

Expired

   

Exercised

   

June 30, 2025

 

Inducement Warrant *

  $ 6.36       4.7       —       700       —       —       700  

Pre-Funded Warrant

  $ —       **       171       —       —       (171 )     —  

Series A Warrants

  $ 15.00       4.2       400       —       —       (327 )     73  

Series B Warrants

  $ 15.00       0.2       400       —       —       (327 )     73  

2021 Warrants

  $ 192.19       0.6       18       —       —       —       18  

June 2020 Investor Warrants

  $ 77.70       0.4       9       —       —       —       9  

June 2020 Placement Agent Warrants

  $ 84.65       —       3       —       (3 )     —       —  

December 2019 Warrants

  $ 121.50       —       37       —       (37 )     —       —  
                      1,038       700       (40 )     (825 )     873  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

June 30, 2025

   

December 31, 2024

 

Current share price

  $ 3.29     $ 9.15  

Conversion price

  $ 192.19     $ 192.19  

Risk-free interest rate

    4.21 %     3.94 %

Expected term (years)

    0.61       1.11  

Volatility of stock

    96.8 %     106.7 %
   

June 30, 2025

   

December 31, 2024

 

Current share price

  $ 3.29     $ 9.15  

Conversion price

  $ 77.70     $ 77.70  

Risk-free interest rate

    4.32 %     4.03 %

Expected term (years)

    0.44       0.94  

Volatility of stock

    91.9 %     89.7 %
   

June 30, 2025

   

December 31, 2024

 

Current share price

    N/A     $ 9.15  

Conversion price

    N/A     $ 84.65  

Risk-free interest rate

    N/A       4.47 %

Expected term (years)

    —       0.44  

Volatility of stock

    N/A       89.7 %
   

June 30, 2025

   

December 31, 2024

 

Current share price

    N/A     $ 9.15  

Conversion price

    N/A     $ 121.50  

Risk-free interest rate

    N/A       4.43 %

Expected term (years)

    —       0.46  

Volatility of stock

    N/A       89.3 %