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Note 4 - Long-term Investments - Gain (Loss) on Remeasurement, Owership, and Control (Details) - CAD ($)
$ in Thousands
12 Months Ended
Nov. 05, 2021
Mar. 11, 2021
Nov. 30, 2022
Nov. 30, 2021
Statement Line Items [Line Items]        
Share of OCI in GRC     $ (0) $ (857)
GRC [member]        
Statement Line Items [Line Items]        
Fair value of investment in GRC   $ 118,312    
GRC net asset value - March 11, 2021   111    
Gain on loss of control over GRC   118,201 118,201  
Investment in GRC - March 11, 2021   $ 118,312   0
Share of loss in GRC       (8,100)
Share of OCI in GRC     (857) (857)
Gain on ownership interest dilution       $ 5,169
Derecognition of investment in associate - November 5, 2021 $ (114,524)      
Gain on loss of significant influence over GRC     6,309  
Gains on remeasurement of investment in GRC     $ 123,653