v3.25.2
COMMON SHARES - Narrative (Details)
$ / shares in Units, $ / shares in Units, $ in Thousands, $ in Millions
 3 Months Ended 6 Months Ended
May 16, 2025
USD ($)
$ / shares
shares
Feb. 28, 2025
USD ($)
shares
Feb. 28, 2025
CAD ($)
$ / shares
shares
Jan. 31, 2025
USD ($)
shares
Jan. 31, 2025
CAD ($)
$ / shares
shares
May 01, 2024
USD ($)
shares
May 01, 2024
CAD ($)
$ / shares
shares
Mar. 20, 2024
USD ($)
shares
Mar. 20, 2024
CAD ($)
$ / shares
shares
Feb. 20, 2024
USD ($)
shares
Feb. 20, 2024
CAD ($)
$ / shares
shares
Feb. 09, 2024
USD ($)
shares
Feb. 09, 2024
CAD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
shares
Jun. 30, 2025
$ / shares
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Aug. 12, 2024
USD ($)
May 01, 2024
USD ($)
shares
Class of Stock [Line Items]                                      
Warrant liability                               $ 5,884 $ 4,623    
Brokered Placement Warrants                                      
Class of Stock [Line Items]                                      
Exercise price of warrants or rights (per share) | $ / shares                             $ 2.15        
Warrants issued (in shares) | shares                             34,849,025        
Warrant liability                               $ 3,576 $ 3,875    
Waterton                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares               1,100,000 1,100,000     1,600,000 1,600,000            
Total gross proceeds               $ 1,400 $ 2.0     $ 2,100 $ 2.9            
Common shares issued (in dollars per shares) | $ / shares                 $ 1.73       $ 1.80            
Private Placement                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares   1,000,000 1,000,000 28,200,000 28,200,000         13,100,000 13,100,000                
Public offering (in dollars per shares) | $ / shares     $ 0.80   $ 0.80                            
Total gross proceeds   $ 600 $ 0.8 $ 15,600 $ 22.6         $ 17,400 $ 23.5                
Common shares issued (in dollars per shares) | $ / shares                     $ 1.80                
Transaction costs incurred, reduction to share capital                   $ 400                  
Private Placement | Certain Directors And Officers                                      
Class of Stock [Line Items]                                      
Total gross proceeds                     $ 0.3                
Private Placement 2                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares 345,800,000                                    
Public offering (in dollars per shares) | $ / shares $ 0.50                                    
Total gross proceeds $ 172,900                                    
Net proceeds from warrants issued 162,700                                    
Warrant liability 10,500                                    
Allocated to share capital based relative fair values $ 164,900                                    
Private Placement 2 | Certain Directors And Officers                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares 25,200,000                                    
Public offering (in dollars per shares) | $ / shares $ 0.50                                    
Total gross proceeds $ 12,600                                    
Net proceeds from warrants issued $ 12,500                                    
Number of share issued (in shares) | shares 1                                    
Exercise price of warrants or rights (per share) | $ / shares $ 0.70                                    
Warrants issued (in shares) | shares 185,500,000                                    
ATM Program                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares                           4,300,000          
Total gross proceeds                           $ 2,500          
Aggregate offering price                                   $ 50,000  
Brokered Placement                                      
Class of Stock [Line Items]                                      
Common shares issued (in shares) | shares           69,700,000 69,700,000                        
Total gross proceeds           $ 83,500 $ 115.0                        
Number of share issued (in shares) | shares           1 1                        
Number of securities called by each warrant (in shares) | shares 0.5000                                   0.5000
Warrants issued (in shares) | shares           34,800,000 34,800,000                        
Common shares issued (in dollars per shares) | $ / shares             $ 1.65                        
Brokered Placement | Brokered Placement Warrants                                      
Class of Stock [Line Items]                                      
Exercise price of warrants or rights (per share) | $ / shares             $ 0.35                        
Warrant liability                                     $ 8,900
Transaction costs incurred, reduction to share capital           $ 4,100                          
Transaction costs           $ 4,500