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Note 2 -Business Segments and Sales of Products (Tables) | 3 Months Ended
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Mar. 31, 2022
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2022 |  |  | 2021 |
Sales of products: |  |  |  |  |  |  |  |
Greens Creek |  | $ | 86,090 |  |  | $ | 98,409 |
Lucky Friday |  |  | 38,040 |  |  |  | 29,122 |
Casa Berardi |  |  | 62,101 |  |  |  | 72,911 |
Nevada Operations |  |  | 268 |  |  |  | 10,237 |
Other |  |  | — |  |  |  | 173 |
|  | $ | 186,499 |  |  | $ | 210,852 |
Income (loss) from operations: |  |  |  |  |  |  |  |
Greens Creek |  | $ | 34,586 |  |  | $ | 44,600 |
Lucky Friday |  |  | 8,771 |  |  |  | 6,323 |
Casa Berardi |  |  | (2,699 | ) |  |  | 11,706 |
Nevada Operations |  |  | (12,231 | ) |  |  | (3,140 | )
Other |  |  | (13,669 | ) |  |  | (18,460 | )
|  | $ | 14,758 |  |  | $ | 41,029 |
|  | March 31, 2022 |  |  | December 31, 2021 |
Identifiable assets: |  |  |  |  |  |  |  |
Greens Creek |  | $ | 578,565 |  |  | $ | 589,944 |
Lucky Friday |  |  | 526,971 |  |  |  | 516,545 |
Casa Berardi |  |  | 710,374 |  |  |  | 701,868 |
Nevada Operations |  |  | 467,092 |  |  |  | 468,985 |
Other |  |  | 455,897 |  |  |  | 451,466 |
|  | $ | 2,738,899 |  |  | $ | 2,728,808 |
Revenue from External Customers by Products and Services [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2022 |  |  | 2021 |
Silver |  | $ | 66,332 |  |  | $ | 77,760 |
Gold |  |  | 77,168 |  |  |  | 101,408 |
Lead |  |  | 19,564 |  |  |  | 15,893 |
Zinc |  |  | 35,638 |  |  |  | 29,191 |
Less: Smelter and refining charges |  |  | (12,203 | ) |  |  | (13,400 | )
Sales of products |  | $ | 186,499 |  |  | $ | 210,852 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 + Details
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