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Note 10 - Stock-based Compensation (Tables)
3 Months Ended
Nov. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Number of
Options
Outstanding

   

Weighted
Average
Exercise Price

 

Outstanding as of August 31, 2022

    1,544,727     $ 10.23  

Granted

    272,102     $ 11.38  

Exercised

    (178,331 )   $ 6.03  

Cancelled/Forfeited

    -       -  

Outstanding as of November 30, 2022

    1,638,498     $ 10.88