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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2014
Reconciliation of Numerators and Denominators used in Computing Basic and Diluted Net Income Per Share | The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share:
|  | Three Months Ended |
|  | March 31, 2014 |  |  | March 31, 2013 |
Net income (loss) |  | $ | (9,798,757 | ) |  | $ | (9,665,379 | )
Numerator, basic and diluted net income (loss) available to stockholders |  | $ | (9,798,757 | ) |  | $ | (9,665,379 | )
Denominator: |  |  |  |  |  |  |  |
Shares used in computation – basic: |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 83,937,883 |  |  |  | 77,344,388 |
Common shares outstanding for basic |  |  | 83,937,883 |  |  |  | 77,344,388 |
Shares used in computation – diluted: |  |  |  |  |  |  |  |
Common shares outstanding for basic |  |  | 83,937,883 |  |  |  | 77,344,388 |
Dilutive effect of potential common shares outstanding |  |  | — |  |  |  | — |
Shares used in computing diluted net income per share |  |  | 83,937,883 |  |  |  | 77,344,388 |
Net income (loss) per share – basic |  | $ | (0.12 | ) |  | $ | (0.12 | )
Net income (loss) per share – diluted |  | $ | (0.12 | ) |  | $ | (0.12 | )
Convertible Preferred Stock Excluded from EPS [Member] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | Potential common shares from outstanding Convertible Preferred Stock calculated on an if-converted basis having an anti-dilutive effect on diluted earnings per share were excluded from potential common shares as follows:
|  | Three Months Ended |
|  | March 31, 2014 |  |  | March 31, 2013 |
Potential common shares from Convertible Preferred Stock excluded from EPS |  |  | 32,400 |  |  |  | 206,400 |
Unvested Restricted Stock Awards Excluded from EPS [Member] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The weighted average equivalent common shares relating to our unvested restricted stock awards that were excluded from potential common shares in the earning per share calculation due to having an anti-dilutive effect are:
|  | Three Months Ended |
|  | March 31, 2014 |  |  | March 31, 2013 |
Potential common shares from unvested restricted stock awards excluded from EPS |  |  | 654,342 |  |  |  | 505,503 |
In the Money Potential Common Shares [Member] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The potential common shares in the following tables represent potential common shares calculated using the treasury stock method from outstanding options, stock awards and warrants that were excluded from the calculation of diluted EPS:
|  | Three Months Ended |
|  | March 31, 2014 |  |  | March 31, 2013 |
Average market price during the period |  | $ | 2.10 |  |  | $ | 3.24 |
In the money potential common shares from options excluded |  |  | 10,057 |  |  |  | 396,105 |
In the money potential common shares from warrants excluded |  |  | — |  |  |  | 555,877 |
Out of Money Potential Common Shares [Member] |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | Potential common shares from out-of-the-money options and warrants were also excluded from the computation of diluted EPS because calculation of the associated potential common shares has an anti-dilutive effect on EPS. The following table lists options and warrants that were excluded from diluted EPS:
|  | Three Months Ended |
|  | March 31, 2014 |  |  | March 31, 2013 |
Out of the money options and warrants excluded: |  |  |  |  |  |  |  |
Stock options with an exercise price of $2.73 per share |  |  | 651,969 |  |  |  | — |
Stock options with an exercise price of $2.74 per share |  |  | 633,835 |  |  |  | — |
Stock options with an exercise price of $2.89 per share |  |  | 993,822 |  |  |  | — |
Stock options with an exercise price of $3.25 per share |  |  | 100,000 |  |  |  | — |
Stock options with an exercise price of $3.30 per share |  |  | — |  |  |  | 100,000 |
Stock options with an exercise price of $3.40 per share |  |  | 100,000 |  |  |  | — |
Stock options with an exercise price of $3.43 per share |  |  | 40,000 |  |  |  | 40,000 |
Stock options with an exercise price of $3.50 per share |  |  | 100,000 |  |  |  | 345,000 |
Stock options with an exercise price of $3.51 per share |  |  | — |  |  |  | 959,500 |
Stock options with an exercise price of $3.53 per share |  |  | — |  |  |  | 194,100 |
Stock options with an exercise price of $3.90 per share |  |  | 20,000 |  |  |  | 20,000 |
Stock options with an exercise price of $4.00 per share |  |  | 52,500 |  |  |  | 52,500 |
Stock options with an exercise price of $5.00 per share |  |  | — |  |  |  | 200,000 |
Stock options with an exercise price of $7.00 per share |  |  | — |  |  |  | 100,000 |
Warrants with an exercise price of $2.44 per share |  |  | 525,000 |  |  |  | — |
Warrants with an exercise price of $3.60 per share |  |  | 1,562,500 |  |  |  | 1,562,500 |
Total anti-dilutive warrants and options excluded from EPS |  |  | 4,779,626 |  |  |  | 3,573,600 |

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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 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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