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Note 3 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   

December 31,

 
   

2024

   

2023

 

Common stock warrants

    2,609,289       102,462  

Stock options

    636,802       349,384  
      3,246,091       451,846