XML 83 R65.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Hecla Mining Company Retirement Plan [Member] | Interest-bearing Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value $ 596 $ 683
Hecla Mining Company Retirement Plan [Member] | Interest-bearing Deposits [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 596 683
Hecla Mining Company Retirement Plan [Member] | Common Stock [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 1,220 2,309
Hecla Mining Company Retirement Plan [Member] | Common Stock [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 1,220 2,309
Hecla Mining Company Retirement Plan [Member] | Real Estate Investments [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 10,797 9,611
Hecla Mining Company Retirement Plan [Member] | Real Estate Investments [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 10,797 9,611
Hecla Mining Company Retirement Plan [Member] | Common Collective Funds [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 9,654 10,095
Hecla Mining Company Retirement Plan [Member] | Common Collective Funds [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 7,970 7,251
Hecla Mining Company Retirement Plan [Member] | Common Collective Funds [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 17,624 17,346
Hecla Mining Company Retirement Plan [Member] | Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 23,252 24,183
Hecla Mining Company Retirement Plan [Member] | Mutual Funds [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 23,252 24,183
Hecla Mining Company Retirement Plan [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 25,068 27,175
Hecla Mining Company Retirement Plan [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 9,654 10,095
Hecla Mining Company Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 18,767 16,862
Hecla Mining Company Retirement Plan [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 53,489 54,132
Lucky Friday Pension Plan [Member] | Interest-bearing Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 393 198
Lucky Friday Pension Plan [Member] | Interest-bearing Deposits [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 393 198
Lucky Friday Pension Plan [Member] | Common Stock [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 311 588
Lucky Friday Pension Plan [Member] | Common Stock [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 311 588
Lucky Friday Pension Plan [Member] | Real Estate Investments [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 2,865 2,513
Lucky Friday Pension Plan [Member] | Real Estate Investments [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 2,865 2,513
Lucky Friday Pension Plan [Member] | Common Collective Funds [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 2,982 2,469
Lucky Friday Pension Plan [Member] | Common Collective Funds [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 2,174 1,978
Lucky Friday Pension Plan [Member] | Common Collective Funds [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 5,156 4,447
Lucky Friday Pension Plan [Member] | Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 6,837 6,637
Lucky Friday Pension Plan [Member] | Mutual Funds [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 6,837 6,637
Lucky Friday Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 7,541 7,423
Lucky Friday Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 2,982 2,469
Lucky Friday Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value 5,039 4,491
Lucky Friday Pension Plan [Member]
    
Note 8 - Employee Benefit Plans (Details) - Fair Value By Asset Category [Line Items]    
Assets, fair value $ 15,562 $ 14,383