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Note 4 - Collaboration Revenue (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Collaboration Revenue [Table Text Block]
  

December 31, 2020

 
    $ 
     

Collaboration arrangement

  9,455 

Fair value of Series A-2 Preferred Shares (Note 15)

  5,267 

Fair value of the Forward (Note 16)

  278 
     

Total cash proceeds

  15,000