v3.26.1
Financial Instruments and Financial Risk Management - Narrative (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
CAD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
CAD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
CAD ($)
Financial Instruments and Financial Risk Management          
Transfers out of Level 1 into Level 2 of fair value hierarchy, assets held at end of reporting period     $ 0   $ 0
Transfers out of Level 2 into Level 1 of fair value hierarchy, assets held at end of reporting period     0   0
Transfers into Level 3 of fair value hierarchy, assets     0   0
Transfers out of Level 3 of fair value hierarchy, assets     0   0
Fair value gain (loss) on financial asset - FID $ 192,000 $ 2,542,000 (644,000) $ 3,283,000  
Fair value gain from foreign exchange translation effects (2,807,000) $ 984,000 (5,161,000) 1,004,000  
Working capital $ 137,100,000   137,100,000   $ 147,600,000
Texas Lithium          
Financial Instruments and Financial Risk Management          
Fair value gain (loss) on financial asset - FID     (700,000)    
Net increase (decrease) in fair value of financial asset     (700,000)    
SWA          
Financial Instruments and Financial Risk Management          
Fair value gain (loss) on financial asset - FID     (100,000)    
Net increase (decrease) in fair value of financial asset     100,000    
Investment in Aqualung          
Financial Instruments and Financial Risk Management          
Fair value gain from foreign exchange translation effects     $ 204,000    
Fair Value gain on equity financing transaction       $ 2,800,000  
USD          
Financial Instruments and Financial Risk Management          
Conversion rate 1.42357   1.42357   1.371
Reasonably possible change In US Dollar relative to Canadian Dollar     10.00%   10.00%
Change in comprehensive loss     $ 13,000,000   $ 14,200,000