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Subsequent event (Details) - USD ($)
3 Months Ended
Mar. 01, 2024
Feb. 29, 2024
RSUs    
Subsequent Event [Line Items]    
Granted units   4,905,134
Subsequent Event | RSUs | Senior management    
Subsequent Event [Line Items]    
Granted (in shares) 353,347  
Stock issued in lieu of salaries $ 155,000  
Subsequent Event | DSUs. | Director    
Subsequent Event [Line Items]    
Granted (in shares) 188,670  
Stock issued in lieu of director fees $ 82,750