XML 69 R30.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 9 - Shareholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Stockholders' Equity Note [Abstract] |
Schedule of Potential Per Share Dividend Amounts Quarterly Price Levels [Table Text Block] |
| Quarterly average realized silver price per ounce |  |  | Quarterly dividend per share |  |  | Annual dividend per share |
| $ | 30 |  |  | $ | 0.01 |  |  | $ | 0.04 |
| $ | 35 |  |  | $ | 0.02 |  |  | $ | 0.08 |
| $ | 40 |  |  | $ | 0.03 |  |  | $ | 0.12 |
| $ | 45 |  |  | $ | 0.04 |  |  | $ | 0.16 |
| $ | 50 |  |  | $ | 0.05 |  |  | $ | 0.20 |
| $ | 55 |  |  | $ | 0.06 |  |  | $ | 0.24 |
| $ | 60 |  |  | $ | 0.07 |  |  | $ | 0.28 |
Schedule of Dividends Payable [Table Text Block] |
|  | (A) |  |  | (B) |  |  | (C) |  |  | (A+B+C) |  |  |  |  |  |
Declaration date |  | Silver-price- linked component per share |  |  | Minimum annual component per share |  |  | Special dividend per share |  |  | Total dividend per share |  |  | Total dividend amount (in millions) |  | Month of payment
November 8, 2011 |  | $ | 0.02 |  |  | $ | — |  |  | $ | — |  |  | $ | 0.02 |  |  | $ | 5.6 |  | December 2011
February 17, 2012 |  | $ | 0.01 |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0125 |  |  | $ | 3.6 |  | March 2012
May 8, 2012 |  | $ | 0.02 |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0225 |  |  | $ | 6.4 |  | June 2012
August 7, 2012 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.7 |  | September 2012
November 2, 2012 |  | $ | 0.02 |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0225 |  |  | $ | 6.4 |  | December 2012
February 25, 2013 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.01 |  |  | $ | 0.0125 |  |  | $ | 3.6 |  | March 2013
May 10, 2013 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.7 |  | June 2013
August 8, 2013 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | August 2013
November 5, 2013 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | December 2013
February 21, 2014 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | March 2014
May 5, 2014 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | June 2014
July 31, 2014 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | September 2014
November 5, 2014 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | December 2014
February 17, 2015 |  | $ | — |  |  | $ | 0.0025 |  |  | $ | — |  |  | $ | 0.0025 |  |  | $ | 0.9 |  | March 2015
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Shares Subject to Options |  |  | Weighted Average Exercise Price |
Outstanding, December 31, 2013 |  |  | 612,745 |  |  | $ | 4.29 |
Expired |  |  | (353,403 | ) |  | $ | 3.42 |
Outstanding, December 31, 2014 |  |  | 259,342 |  |  | $ | 5.47 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  | Shares |  |  | Weighted Average Grant Date Fair Value per Share |
Unvested, January 1, 2014 |  |  | 2,085,301 |  |  | $ | 3.56 |
Granted |  |  | 1,457,267 |  |  | $ | 3.30 |
Canceled |  |  | (72,031 | ) |  | $ | 3.10 |
Distributed |  |  | (1,234,962 | ) |  | $ | 3.74 |
Unvested, December 31, 2014 |  |  | 2,235,575 |  |  | $ | 3.31 |

X
- Definition Schedule summarizing the potential per share dividend amounts at different quarterly average realized price levels. + References No definition available. + Details
Name: | hl_ScheduleOfPotentialPerShareDividendAmountsQuarterlyPriceLevelsTableTextBlock
Namespace Prefix: | hl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of all or some of the information related to dividends declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_ScheduleOfDividendsPayableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration