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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Net Loss Per Share | (2) Net Loss Per Share The Company calculates basic earnings per share by dividing loss attributable to common stockholders by the weighted average common shares outstanding during the period, excluding common stock subject to vesting provisions. Diluted earnings per share is computed by dividing loss attributable to common stockholders by the weighted average number of common shares outstanding during the period increased to include, if dilutive, the number of additional common shares that would have been outstanding if the potential common shares had been issued. The Company’s potentially dilutive shares include stock options, restricted stock units and warrants for common stock. Because the Company reported a net loss for the years ended December 31, 2015 and 2014, all potentially dilutive shares of common stock have been excluded from the computation of the dilutive net loss per share for all periods presented. As of December 31, 2015, none of the outstanding warrants were in-the-money and none of the outstanding stock options were in-the-money; therefore, they would have been excluded from our weighted-average diluted earnings per share calculation. Such potentially dilutive shares of common stock consist of the following:
| Years Ended December 31, |
| 2015 |  |  | 2014 |
Potentially dilutive securities, excluded: |  |  |  |  |  |  |
Outstanding stock options |  | 161,278 |  |  |  | 152,584 |
Unvested restricted stock units |  | 62,359 |  |  |  | 67,274 |
Warrants to purchase common stock |  | 3,739,948 |  |  |  | 1,338,715 |
|  | 3,963,585 |  |  |  | 1,558,573 |

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