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Net Loss Per Share | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Net Loss per Share | 11. Net Loss per Share The Company computes basic and diluted losses per share using a methodology that gives effect to the impact of outstanding participating securities (the “two-class” method). Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period and excludes any dilutive effects of share-based awards. Diluted net loss per share is computed giving effect to all potential dilutive common shares, including common stock issuable upon exercise of stock options, convertible preferred stock, and unvested restricted common stock. As the Company had net losses for the three months ended March 31, 2019 and 2018, there is no income allocation required under the two-class method or dilution attributed to weighted average shares outstanding in the calculation of diluted loss per share. The following potentially dilutive securities have been excluded from the calculation of diluted net loss per share because including them would have had an anti-dilutive effect (in common stock equivalent shares):
|  | As of March 31, |
|  | 2019 |  |  | 2018 |
Options issued and outstanding |  |  | 1,706,317 |  |  |  | 667,590 |
Total |  |  | 1,706,317 |  |  |  | 667,590 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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