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Note 9 - Investments in Equity Securities (Tables)
6 Months Ended
Jan. 31, 2025
Notes Tables  
Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]

Balance, July 31, 2024

 $75,264 

Sale of investment in publicly listed companies

  (54,372)

Investment in public listed companies

  10,455 

Fair value loss on equity securities

  (18,317)

Foreign exchange difference

  (5)

Balance, January 31, 2025

 $13,025