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Note 6 - Identifiable Assets by Reporting Segments (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
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Greens Creek [Member] |  |
Identifiable assets | $ 693,948 | $ 698,265
Lucky Friday [Member] |  |
Identifiable assets | 427,812 | 393,338
Casa Berardi [Member] |  |
Identifiable assets | 792,267 | 779,423
San Sebastian [Member] |  |
Identifiable assets | 24,483 | 22,238
Other Segments [Member] |  |
Identifiable assets | 332,300 | 328,661
Identifiable assets | $ 2,270,810 | $ 2,221,925

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Balance Type: |
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- Details
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