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Note 8 - Warrants (Tables)
6 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
          

Weighted Average

 
      

Weighted Average

  

Remaining

 
  

Shares

  

Exercise Price

  

Contractual Term

 

Outstanding as of December 31, 2024

  317,664  $4.9600   2.60 

Issued – February 7, 2025

  450,390   0.8294*   

Issued – March 17, 2025

  415,420   0.8294*   

Issued - May 5, 2025

  602,846   0.8294    

Issued - June 2025

  2,054,262   1.2169    

Warrants exchanged for common stock

  (125,362)  1.1000    

Reclassification of Series B Warrants

  7,881,884   0.8294*   

Outstanding as of June 30, 2025

  11,597,104  $0.9529*  3.80 

Exercisable as of June 30, 2025

  11,597,104  $0.9529*  3.80 
          

Weighted Average

 
      

Weighted Average

  

Remaining

 
  

Shares

  

Exercise Price

  

Contractual Term

 

Outstanding as of December 31, 2024

  4,628,312  $1.9445   4.75 

Issued – March 2025 Down Round Trigger

  2,582,234   1.2036    

Issued – May 2025 Down Round Trigger

  3,057,622   0.8294    

Series B exercised

  (2,220,688)  0.9639    

Reclassification of Series B Warrants

  (7,881,884)  0.8294    

Outstanding as of June 30, 2025

  165,596  $1.9445   4.25 

Exercisable as of June 30, 2025

  165,596  $1.9445   4.25