Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Common Stock Warrant Liabilities (Tables)

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Note 8 - Common Stock Warrant Liabilities (Tables)
9 Months Ended
Sep. 30, 2024
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

    (13 )     129       116  

Exercise of warrants

          (289 )     (289 )

Fair value of warrants outstanding as of March 31, 2024

  $ 413     $     $ 413  

Change in fair value of warrants

    (255 )           (255 )

Exercise of warrants

    (111 )           (111 )

Fair value of warrants outstanding as of June 30, 2024

  $ 47     $     $ 47  

Change in fair value of warrants

    (18 )           (18 )

Exercise of warrants

                 

Fair value of warrants outstanding as of September 30, 2024

  $ 29     $     $ 29  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

September 30,

   

December 31,

 
   

2024

   

2023

 

Stock price

  $ 2.49     $ 12.00  

Risk-free interest rate

    3.58 %     3.84 %

Expected dividend yield

           

Expected term in years

    3.0       3.8  

Expected volatility

    164 %     148 %