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Note 15 - Fair Value Measurements (Tables)
6 Months Ended
Feb. 28, 2022
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
      

Fair Value Measurements

Using Inputs Considered as

 
  

Fair value as of

February 28, 2022

  

Level 1

  

Level 2

  

Level 3

 

Available for sale securities

 $4,634  $4,634  $  $ 
      

Fair Value Measurements

Using Inputs Considered as

 
  

Fair value as of

August 31, 2021

  

Level 1

  

Level 2

  

Level 3

 

Available for sale securities

 $4,634  $4,634  $  $