v3.26.1
Note 3 - Business Segments and Sales of Products - Sales of Products (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales $ 411,433 $ 205,334
Less: Smelter and refining charges (5,411) (6,712)
Silver [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 295,633 117,977
Gold [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 56,977 31,359
Lead [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 22,297 22,106
Zinc [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 36,873 33,125
Copper [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 412 391
Total metal sales [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales 406,781 198,246
Environmental Remediation Services [Member]    
Segment Reporting, Revenue Reconciling Item [Line Items]    
Total sales $ 4,652 $ 7,088