v3.25.4
Segmented and Geographic Information and Major Customers (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Statement [Line Items]    
Cash and cash equivalents $ 39,100 $ 20,002
Trade and other receivables 10,598 7,132
Inventories 10,225 10,704
Prepaid expenses 3,862 2,876
Derivative instruments 2,861 0
Restricted cash 4,672 4,527
Property, plant and equipment 163,384 147,399
Total assets 234,702 192,640
Trade and other payables 30,718 37,333
Derivative instruments 0 709
Pre-payment facility 2,550 2,000
Credit facility 9,160 9,490
Term loan facility 48,019 0
Other long-term liabilities 2,180 1,658
Metals contract liability 44,618 40,868
Silver contract liability 28,566 18,193
Convertible debenture 0 10,849
Royalty payable 3,062 2,762
Post-employment benefit obligations 3,108 3,892
Decommissioning provision 12,473 11,389
Deferred tax liabilities 33 48
Total liabilities 184,487 139,191
Other long-term liabilities 2,180 1,658
Credit facility 9,400  
Galena Complex [Member]    
Statement [Line Items]    
Cash and cash equivalents 337 1,390
Inventories 2,758 2,625
Prepaid expenses 1,382 933
Derivative instruments 0 0
Restricted cash 53 53
Property, plant and equipment 83,180 74,935
Total assets 92,637 81,386
Trade and other payables 9,425 8,689
Pre-payment facility 2,550 2,000
Credit facility 0 0
Term loan facility 0 0
Silver contract liability 0 0
Royalty payable 0 0
Post-employment benefit obligations 3,108 3,892
Decommissioning provision 5,716 5,346
Total liabilities 21,715 21,097
Other long-term liabilities 916 1,170
Metals contract liability 0 0
Deferred tax liabilities 0 0
Trade and other receivables 4,927 1,450
Convertible debenture 0 0
Cosala Operations [Member]    
Statement [Line Items]    
Cash and cash equivalents 5,840 6,576
Inventories 7,364 7,976
Prepaid expenses 1,288 745
Derivative instruments 0 0
Restricted cash 149 135
Property, plant and equipment 58,370 48,123
Total assets 78,165 69,040
Trade and other payables 12,256 12,650
Pre-payment facility 0 0
Term loan facility 0 0
Silver contract liability 0 0
Convertible debenture 0 0
Royalty payable 0 0
Post-employment benefit obligations 0 0
Decommissioning provision 2,693 2,129
Total liabilities 25,012 24,317
Other long-term liabilities 870 0
Metals contract liability 0 0
Deferred tax liabilities 33 48
Trade and other receivables 5,154 5,485
Credit facility 9,160 9,490
Relief Canyon [Member]    
Statement [Line Items]    
Cash and cash equivalents 199 35
Inventories 103 103
Prepaid expenses 394 755
Derivative instruments 0 0
Restricted cash 4,470 4,339
Property, plant and equipment 21,169 23,686
Total assets 26,335 28,918
Trade and other payables 3,271 2,896
Pre-payment facility 0 0
Credit facility 0 0
Silver contract liability 0 0
Convertible debenture 0 0
Royalty payable 0 0
Post-employment benefit obligations 0 0
Decommissioning provision 4,064 3,914
Total liabilities 7,335 6,810
Trade and other receivables Eight 0 0
Other long-term liabilities 0 0
Metals contract liability 0 0
Deferred tax liabilities 0 0
Corporate and Other [Member]    
Statement [Line Items]    
Cash and cash equivalents 32,724 12,001
Inventories 0 0
Prepaid expenses 798 443
Derivative instruments 2,861 0
Restricted cash 0 0
Property, plant and equipment 665 655
Total assets 37,565 13,296
Trade and other payables 5,766 13,098
Pre-payment facility 0 0
Credit facility 0 0
Term loan facility 48,019 0
Silver contract liability 28,566 18,193
Convertible debenture 0 10,849
Royalty payable 3,062 2,762
Post-employment benefit obligations 0 0
Decommissioning provision 0 0
Total liabilities 130,425 86,967
Other long-term liabilities 394 488
Metals contract liability 44,618 40,868
Deferred tax liabilities 0 0
Trade and other receivables $ 517 $ 197