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Note 9 - Equity-Accounted Investment (Tables)
12 Months Ended
Jul. 31, 2022
Notes Tables  
Equity Method Investments [Table Text Block]
     

Balance, July 31, 2019

 $8,680 

Share of loss from URC

  (89)

Gain on dilution of ownership interest

  3,057 

Translation loss

  (133)

Balance, July 31, 2020

  11,515 

Addition

  3,397 

Share of income from URC

  732 

Gain on dilution of ownership interest

  4,473 

Translation gain

  613 

Balance, July 31, 2021

  20,730 

Share of income from URC

  153 

Gain on dilution of ownership interest

  3,973 

Translation loss

  (679)

Balance, July 31, 2022

 $24,177