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Note 13 - Fair Value Measurements (Tables)
3 Months Ended
Nov. 30, 2022
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
           

Fair Value Measurements

Using Inputs Considered as

 
   

Fair value as of

November 30, 2022

   

Level 1

   

Level 2

   

Level 3

 

Available for sale securities

  $ 5,590     $ 5,590     $     $  
           

Fair Value Measurements

Using Inputs Considered as

 
   

Fair value as of

August 31, 2022

   

Level 1

   

Level 2

   

Level 3

 

Available for sale securities

  $ 5,590     $ 5,590     $     $