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Weighted Average Common Shares (Details) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Basic Common Shares | 74,351,065 | 68,457,885 | 47,335,571
Effect of dilutive stock-based awards |  | 637,081 |
Effect of dilutive warrants |  | 200,981 |
Weighted Average Number of Shares Outstanding, Diluted, Total | 74,351,065 | 69,295,947 | 47,335,571
Class of Warrant or Right, Outstanding | 19,977,743 | 15,850,238 | 16,138,480
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 3,102,500 | 3,195,000 | 2,588,661
Warrants [Member] |  |  |
Class of Warrant or Right, Outstanding | 19,977,743 | 15,219,802 |
Stock Options [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 3,102,500 | 1,810,000 |

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- Definition Aggregate amount of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 + Details
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