Annual report pursuant to Section 13 and 15(d)

Note 7 - Stockholders' Equity (Tables)

v3.24.1
Note 7 - Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]
   

Number of Units and Awards

   

Weighted Average Grant Date Fair Value

 

Unvested balance at December 31, 2021

    94,418     $ 56.25  

Forfeited

    (666 )     13.95  

Vested

    (80,615 )     40.83  

Unvested balance at December 31, 2022

    13,137     $ 12.17  

Granted

    85,000       1.14  

Forfeited

           

Vested

           

Unvested balance at December 31, 2023

    98,137     $ 12.17  
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
   

For the year ended December 31,

 
   

2023

   

2022

 

Research and development

  $ 199     $ 297  

General and administrative

    707       352  

Total stock-based compensation expense

  $ 906     $ 649  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Stock Options

   

Weighted Average Exercise Price

   

Weighted Average Remaining Contractual Term (in years)

   

Aggregate Intrinsic Value (in thousands)

 

Outstanding as of December 31, 2021

        $             $  

Outstanding as of December 31, 2022

        $             $  

Granted

    1,685,000       1.14                  

Outstanding as of December 31, 2023

    1,685,000     $ 1.14       9.50     $  

Vested and Exercisable as of December 31, 2023

    262,500       1.14       9.50     $  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

For the Year Ended December 31,

 
   

2023

   

2022

 

Risk-free interest rate

    4.14 %      

Expected dividend yield

           

Expected term in years

    5.8 - 5.9        

Expected volatility

    125.72 %      
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Warrants

   

Weighted Average Exercise Price

   

Aggregate Intrinsic Value (in thousands)

 

Outstanding, December 31, 2021

    997     $ 9.98     $ 11  

Granted

    5,166,119     $ 2.67        

Exercised

    (1,029,200 )   $ 0.14        

Outstanding, December 31, 2022

    4,137,916     $ 1.55     $ 1  

Granted

    49,479,398     $ 0.26        

Exercised

    (14,272,382 )   $ 0.00        

Outstanding, December 31, 2023

    39,344,932     $ 0.49     $