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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2012
Summary of Significant Accounting Policies [Abstract] |
Reconciliation of the numerators and denominators of the basic and diluted earnings per share computations |
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Net income (loss) |  | $ | 833,522 |  |  | $ | (4,035,193 | ) |  | $ | (9,395,917 | ) |  | $ | (9,782,428 | )
Weighted average shares outstanding used to compute basic and diluted net income or loss per share |  |  | 24,806,769 |  |  |  | 13,802,372 |  |  |  | 23,882,634 |  |  |  | 13,741,481 |
Basic and diluted net income (loss) per share |  | $ | 0.03 |  |  | $ | (0.29 | ) |  | $ | (0.39 | ) |  | $ | (0.71 | )
Outstanding potentially dilutive common stock |
|  | 2012 |  |  | 2011 |
Options |  |  | 854,958 |  |  |  | 996,463 |
Restricted stock units |  |  | 1,513,400 |  |  |  | 341,874 |
Warrants |  |  | 12,134,483 |  |  |  | 1,434,483 |
Total |  |  | 14,502,841 |  |  |  | 2,772,820 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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