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Stock-Based Compensation (Restricted Stock) (Details) (Restricted Stock [Member], USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 15, 2012 | May 31, 2012 | Dec. 21, 2011 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share granted | 525,000 | 755,000 | 4,710,000 | 1,280,000
Length of time |  |  |  | 90 days
Stock fair value per share | $ 2.89 | $ 2.02 | $ 1.89 | $ 2.41
Stock fair value | $ 1,517,250 | $ 1,525,000 | $ 8,901,900 |
Expiration of stock awards |  |  |  | 5 years
Unrecognized compensation cost related to non-vested share restricted stock awards |  |  |  | $ 1,300,000
Unrecognized compensation cost related to non-vested share restricted stock awards, recognition period |  |  |  | 10 months 14 days
Group One [Member] | Level of Proven and Probable Reserves [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 1,000,000
Group One [Member] | Annual Mining Production Level [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 15,000
Group Two [Member] | Level of Proven and Probable Reserves [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 1,500,000
Group Two [Member] | Annual Mining Production Level [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 17,500
Group Three [Member] | Level of Proven and Probable Reserves [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 2,000,000
Group Three [Member] | Annual Mining Production Level [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 20,000
Group Four [Member] | Level of Proven and Probable Reserves [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of gold equivalent ounces |  |  |  | 3,250,000

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- Definition Number of Performance Targets. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Grants In Period Grant Date Fair Value. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Expiration. + References No definition available. + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Aggregate unrecognized cost of share-based awards, other than options, made to employees under an equity-based compensation plan, that have yet to vest. + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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