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Note 8 - Employee Benefit Plans (Details) - Reconciliation Of Level 3 Assets (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Reconciliation Of Level 3 Assets [Line Items] |  |
Beginning balance at | $ 16,862 | $ 13,300
Ending balance at December 31 | 18,767 | 16,862
Net unrealized gains on assets held at the reporting date | 1,486 | 838
Purchases | 419 | 2,724
Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Reconciliation Of Level 3 Assets [Line Items] |  |
Beginning balance at | 4,491 | 3,566
Ending balance at December 31 | 5,039 | 4,491
Net unrealized gains on assets held at the reporting date | 399 | 187
Purchases | $ 149 | $ 738

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- Definition Amount of increase (decrease) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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