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Share based payments - Warrants (Details)
$ in Thousands
12 Months Ended
Nov. 15, 2022
CAD ($)
item
shares
Jan. 22, 2021
CAD ($)
item
Y
shares
Dec. 31, 2022
CAD ($)
shares
Dec. 31, 2021
CAD ($)
shares
Warrants        
Warrants exercised     210,545 1,569,215
Proceeds from warrant exercises | $ $ 970   $ 807 $ 6,217
Warrants expired     83,213 22,222
Total fair value | $     $ 57,329 $ 65,709
Overnight-marketed offering        
Warrants        
Warrants issued 2,345,000   2,483,150  
Total fair value | $ $ 2,087      
Number of units issued 2,345,000      
Number of common share in each unit 1      
Number of warrant in each unit 1      
Overnight-marketed offering | Financial derivative liability - warrants | Risk-free interest rate        
Warrants        
Significant unobservable input of liabilities | item 0.04172      
Overnight-marketed offering | Financial derivative liability - warrants | Expected volatility        
Warrants        
Significant unobservable input of liabilities | item 0.6289      
Overnight-marketed offering | Financial derivative liability - warrants | Share price        
Warrants        
Significant unobservable input of liabilities | item 2.35      
Overnight-marketed offering | Financial derivative liability - warrants | Strike price        
Warrants        
Significant unobservable input of liabilities | item 3.10      
Overnight-marketed offering | Broker Warrants Units        
Warrants        
Number of units issued 138,150      
Number of common share in each unit 1      
Number of warrant in each unit 1      
Reserve recorded | $ $ 325      
January 2021 Bought Deal Financing        
Warrants        
Warrants issued   875,917   981,027
Total fair value | $   $ 1,667    
January 2021 Bought Deal Financing | Financial derivative liability - warrants | Risk-free interest rate        
Warrants        
Significant unobservable input of liabilities | item   0.0017    
January 2021 Bought Deal Financing | Financial derivative liability - warrants | Expected life        
Warrants        
Significant unobservable input of liabilities | Y   2    
January 2021 Bought Deal Financing | Financial derivative liability - warrants | Expected volatility        
Warrants        
Significant unobservable input of liabilities | item   0.7710    
January 2021 Bought Deal Financing | Financial derivative liability - warrants | Expected dividends        
Warrants        
Significant unobservable input of liabilities | item   0    
January 2021 Bought Deal Financing | Financial derivative liability - warrants | Share price        
Warrants        
Significant unobservable input of liabilities | item   0.315    
January 2021 Bought Deal Financing | Broker Warrants        
Warrants        
Warrants issued   105,110