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Loan Payable - Disclosure of detailed information about loans payable (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about borrowings [line items]    
Loans payable, balance at beginning of period $ 32,752 $ 40,489
Loss on debt modification and settlement (783) 314
Interest accretion 3,814 5,091
Repayment (34,660) (10,000)
Interest paid (2,655) (3,142)
Proceeds from credit facility 35,000  
Financing costs (484) (60)
Loans payable, balance at end of period 34,550 32,752
Sprott Credit Facility    
Disclosure of detailed information about borrowings [line items]    
Loans payable, balance at beginning of period 32,752 40,489
Loss on debt modification and settlement (783) (314)
Interest accretion 2,624 5,091
Repayment (34,660) (10,000)
Interest paid (1,496) (3,142)
Proceeds from credit facility 0  
Financing costs (3)  
Loans payable, balance at end of period 0 32,752
Franco-Nevada Credit Facility    
Disclosure of detailed information about borrowings [line items]    
Loans payable, balance at beginning of period 0 0
Loss on debt modification and settlement 0 0
Interest accretion 1,190 0
Repayment 0 0
Interest paid (1,159) 0
Proceeds from credit facility 35,000  
Financing costs (481)  
Loans payable, balance at end of period $ 34,550 $ 0