Annual report [Section 13 and 15(d), not S-K Item 405]

Note 8 - Common Stock Warrants (Tables)

v3.26.1
Note 8 - Common Stock Warrants (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
   

October 2022

   

January 2023

         
   

Warrants

   

Warrants

   

Total

 

Fair value of warrants outstanding as of December 31, 2023

  $ 426     $ 160     $ 586  

Change in fair value of warrants

    (299 )     129       (170 )

Exercise of warrants

    (111 )     (289 )     (400 )

Fair value of warrants outstanding as of December 31, 2024

    16             16  

Change in fair value of warrants

    (15 )           (15 )

Fair value of warrants outstanding as of December 31, 2025

  $ 1     $     $ 1  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

December 31,

   

December 31,

 
   

2025

   

2024

 

Stock price

  $ 0.68     $ 2.00  

Risk-free interest rate

    3.75 %     4.27 %

Expected dividend yield

           

Expected term in years

    1.78       2.80  

Expected volatility

    151 %     155 %