v3.26.1
Mining assets (Tables)
 12 Months Ended
Dec. 31, 2025
Notes and other explanatory information [abstract]  
Schedule of mining assets

                     
    Note  Plant and
Equipment		   Mineral
Property
Acquisition and
Development
Costs		   Exploration
and
Evaluation
Projects		   Total 
Cost                        
Balance at December 31, 2023      $60,226   $143,227   $8,294   $211,747 
Additions       20,033    22,291    126    42,450 
Change in restoration provisions   12   -    579    -    579 
Asset disposals       (2,723)   -    -    (2,723)
Translation adjustment       (1,247)   (4,140)   172    (5,215)
Balance at December 31, 2024       76,289    161,957    8,592    246,838 
Additions       40,134    20,836    144    61,114 
Acquisitions   14   -    -    13,885    13,885 
Change in restoration provisions   12   -    (3,884)   250    (3,634)
Asset disposals       (4,977)   -    (37)   (5,014)
Translation adjustment       (260)   614    668    1,022 
Balance at December 31, 2025      $111,186   $179,523   $23,502   $314,211 
                         
Accumulated Amortization                        
Balance at December 31, 2023      $10,243   $35,823   $-   $46,066 
Amortization       1,498    (9)   -    1,489 
Asset disposals       (1,649)   -    -    (1,649)
Translation adjustment       98    (1,032)   -    (934)
Balance at December 31, 2024       10,190    34,782    -    44,972 
Amortization       1,515    441    -    1,956 
Asset disposals       (3,872)   -    -    (3,872)
Translation adjustment       695    4,021    -    4,716 
Balance at December 31, 2025      $8,528   $39,244   $-   $47,772 
                         
Carrying Value                        
Balance at December 31, 2024      $66,099   $127,175   $8,592   $201,866 
Balance at December 31, 2025      $102,658   $140,279   $23,502   $266,439