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v3.23.2

Note 2 - Business Segments and Sales of Products - Sales of Products (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net sales | $ 178,131 | $ 191,242 | $ 377,631 | $ 377,741
Less: Smelter and refining charges | (12,220) | (13,316) | (28,193) | (25,519)
Net sales | 177,753 | 191,242 | 376,744 | 377,741
Silver Contracts [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net sales | 79,489 | 70,050 | 161,022 | 136,382
Gold [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net sales | 62,924 | 82,018 | 138,010 | 159,186
Lead [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net sales | 21,657 | 21,314 | 47,059 | 40,878
Zinc [Member] |  |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |  |
Net sales | $ 25,903 | $ 31,176 | $ 58,846 | $ 66,814

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