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Note 6 - Business Segments - Information about Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Sales of products | $ 134,279 | $ 171,302 | $ 276,823 | $ 302,319
Income (loss) from operations | 3,975 | 41,610 | 19,846 | 57,183
Greens Creek [Member] |  |  |  |
Sales of products | 71,339 | 59,574 | 130,189 | 113,456
Income (loss) from operations | 15,418 | 14,831 | 29,532 | 22,909
Lucky Friday [Member] |  |  |  |
Sales of products | (187) | 22,760 | 19,823 | 44,012
Income (loss) from operations | (8,212) | 4,047 | (4,332) | 6,790
Casa Berardi [Member] |  |  |  |
Sales of products | 43,822 | 53,285 | 85,534 | 85,483
Income (loss) from operations | (1,708) | 10,622 | (3,953) | 12,556
San Sebastian [Member] |  |  |  |
Sales of products | 19,305 | 35,683 | 41,277 | 59,368
Income (loss) from operations | 11,892 | 25,583 | 25,346 | 40,495
Other Segments [Member] |  |  |  |
Income (loss) from operations | $ (13,415) | $ (13,473) | $ (26,747) | $ (25,567)

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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