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Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category | Dec. 31, 2013 | Dec. 31, 2012
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Cash [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 1.00% | 1.00%
Cash [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 1.00% | 2.00%
Large Cap U.S. Equity [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 9.00% | 11.00%
Large Cap U.S. Equity [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 9.00% | 12.00%
Small Cap U.S. Equity [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 6.00% | 4.00%
Small Cap U.S. Equity [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 6.00% | 6.00%
Foreign Government Debt Securities [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 9.00% | 10.00%
Foreign Government Debt Securities [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 9.00% | 10.00%
Fixed Income Funds [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 32.00% | 33.00%
Fixed Income Funds [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 32.00% | 30.00%
Real Estate [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 20.00% | 18.00%
Real Estate [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 20.00% | 19.00%
Hedge Funds [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 15.00% | 13.00%
Hedge Funds [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 15.00% | 14.00%
Real Return [Member] | Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 8.00% | 10.00%
Real Return [Member] | Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 8.00% | 7.00%
Hecla Mining Company Retirement Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 100.00% | 100.00%
Lucky Friday Pension Plan [Member] |  |
Note 8 - Employee Benefit Plans (Details) - Allocations Of Investments And Measurement Dates By Asset Category [Line Items] |  |
Allocations of investment, percent | 100.00% | 100.00%

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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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