v3.25.2
Note 9 - Stockholders' Equity and Common Stock Warrants (Tables)
6 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Outstanding

   

Range of exercise

price per share

 

Expiration dates

Historical Diffusion common stock warrants

    25,768     $44.55 - $96.12  

November 2025 through

February 2026

Historical EIP common stock warrants

    43,618       $19.81    

April 2028

Series A common stock warrants

    2,532,285       $39.24    

April 2027

      2,601,671