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Note 9 - Equity (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
      

Weighted

         
      

Average

  

Weighted

  

Aggregate

 
  

Total

  

Remaining

  

Average

  

Intrinsic Value

 
  

Warrant Shares

  

Term

  

Exercise Price

  

(in thousands)

 

Outstanding as of December 31, 2023

  3,321,499   3.91  $23.01  $180 

Issued

  718,348             

Expired

  (5,510)            

Outstanding as of March 31, 2024

  4,034,337   3.68   19.61   807 

Issued

  34,903             

Outstanding as of June 30, 2024

  4,069,240   3.44  $19.47  $ 

Issued

  1,349,305             

Expired

  (90,909)            

Outstanding as of September 30, 2024

  5,327,636   3.67  $13.39  $