v3.26.1
Revenue (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
Silver [Member]  
Disclosure of disaggregation of revenue from contracts with customers [line items]  
Sales revenue, net of treatment and selling costs $ 39.5
Copper [Member]  
Disclosure of disaggregation of revenue from contracts with customers [line items]  
Sales revenue, net of treatment and selling costs $ 8.5