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Note 12 - Investments in Equity Securities (Tables)
12 Months Ended
Jul. 31, 2023
Notes Tables  
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]

Balance, July 31, 2021

 $ 

Anfield Debt Settlement (Note 6)

  10,951 

Investment in UEX

  5,781 

Unrealized loss on revaluation of equity securities

  (1,898)

Balance, July 31, 2022

  14,834 

Transferred as consideration for UEX Acquisition (Note 3)

  (5,830)

Acquired from UEX Acquisition (Note 3)

  135 

Investment in public listed companies

  47,192 

Sale of investment in public listed companies

  (4,590)

Loss on revaluation of equity securities (Note 19)

  (13,083)

Foreign exchange difference

  (2)

Balance, July 31, 2023

 $38,656