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Weighted Average Common Shares | 12 Months Ended
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Dec. 31, 2011
Weighted Average Common Shares [Abstract] |
Weighted Average Common Shares | 14. Weighted Average Common Shares Basic income/(loss) per Common Share is computed by dividing income/(loss) by the weighted average number of Common Shares outstanding during the period. Diluted income per Common Share is computed similarly to basic income per Common Share except that weighted average Common Shares are increased to include the potential issuance of dilutive Common Shares.
|  | Year Ended December 31, |
|  | 2011 |  |  | 2010 |
Weighted average Common Shares: |  |  |  |  |  |
Basic |  |  | 68,457,885 |  |  |  | 47,335,571 |
Effect of dilutive employee stock-based awards |  |  | 637,081 |  |  |  | - |
Effect of dilutive warrants |  |  | 200,981 |  |  |  |  |
Diluted |  |  | 69,295,947 |  |  |  | 47,335,571 |
Stock options to purchase 1,870,000 and 2,588,661 Common Shares, warrants to purchase 15,219,802 and 16,138,480 Common Shares were outstanding at December 31, 2011 and 2010, respectively, but were not included in the computation of diluted weighted average Common Shares outstanding because their effect would have been anti-dilutive.

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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