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Share capital and warrants - 2022 Non-Brokered private placements (Details)
$ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions
12 Months Ended
May 27, 2022
$ / shares
shares
Apr. 21, 2022
CAD ($)
shares
Apr. 21, 2022
USD ($)
shares
Mar. 29, 2022
CAD ($)
shares
Mar. 29, 2022
USD ($)
shares
Mar. 04, 2022
CAD ($)
shares
Mar. 04, 2022
USD ($)
shares
Mar. 02, 2022
CAD ($)
tranche
Mar. 02, 2022
CAD ($)
$ / shares
Dec. 31, 2023
CAD ($)
$ / shares
Dec. 31, 2022
CAD ($)
$ / shares
Mar. 17, 2023
$ / shares
shares
Mar. 16, 2023
$ / shares
Dec. 31, 2021
$ / shares
Share capital and warrants                            
Number of warrants to purchase common stock                       1    
Warrants exercise price | (per share)                   $ 12.93 $ 17.86 $ 10.70 $ 18.00 $ 30.00
Warrant liability | $                   $ 11,552 $ 16,395      
Share issue expense | $                   $ 3,396 6,298      
2022 Non-Brokered private placements                            
Share capital and warrants                            
Warrant liability | $               $ 39,800 $ 39,800          
Holding period of securities               4 months 1 day            
Share issue expense | $               $ 2,800            
Issuance costs allocated to warrants | $                     $ 1,000      
2022 Non-Brokered private placements | Non-Brokered Subscription Receipts                            
Share capital and warrants                            
Number of tranches | tranche               3            
Price per receipt | $ / shares                 $ 3.50          
Number of units issued to each Subscription Receipt holders 1                          
Number of common stock included in each unit 1                          
Number of warrants included in each unit 1                          
Number of warrants to purchase common stock 1                          
Warrants exercise price | $ / shares $ 18.00                          
Warrants exercisable term 5 years                          
Total common share and warrants issued 11,363,933                          
2022 Non-Brokered private placements | Non-Brokered Subscription Receipts | Pre-share consolidation                            
Share capital and warrants                            
Warrants exercise price | $ / shares $ 6.00                          
2022 Non-Brokered private placements | Non-Brokered Subscription Receipts | First tranche                            
Share capital and warrants                            
Number of receipts issued           24,215,099 24,215,099              
Gross proceeds from issuance of receipts           $ 108,000 $ 84.8              
2022 Non-Brokered private placements | Non-Brokered Subscription Receipts | Second tranche                            
Share capital and warrants                            
Number of receipts issued       9,365,689 9,365,689                  
Gross proceeds from issuance of receipts       $ 41,800 $ 32.8                  
2022 Non-Brokered private placements | Non-Brokered Subscription Receipts | Third tranch                            
Share capital and warrants                            
Number of receipts issued   512,980 512,980                      
Gross proceeds from issuance of receipts   $ 2,300 $ 1.8