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Net Loss Per Share of Common Stock | 12 Months Ended
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Dec. 31, 2017
Net Loss Per Share of Common Stock |
Net Loss Per Share of Common Stock | 3. Net Loss Per Share of Common Stock Basic net loss per common share is determined by dividing net loss by the weighted-average number of common shares outstanding during the period, without consideration of common stock equivalents. Diluted net income per share is computed by dividing net income by the weighted-average number of common stock equivalents outstanding for the period. The treasury stock method was used to determine the dilutive effect of the Company’s stock option grants, restricted stock units and warrants. The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2017, 2016 and 2015:
|  | Year Ended December 31, |
|  | 2017 |  | 2016 |  | 2015 |
Net loss |  | $ | (33,281,068) |  | $ | (31,809,838) |  | $ | (12,769,498) |
Basic and diluted net loss per common share |  | $ | (1.13) |  | $ | (1.50) |  | $ | (0.67) |
Basic and diluted weighted average common shares outstanding |  |  | 29,395,756 |  |  | 21,256,312 |  |  | 19,010,587 |
The following potentially dilutive securities outstanding at December 31, 2017, 2016 and 2015 have been excluded from the computation of diluted weighted average shares outstanding, as they would be anti-dilutive:
|  | Year Ended December 31, |
|  | 2017 |  | 2016 |  | 2015 |
Warrants |  | 553,868 |  | 553,868 |  | 578,687 |
Stock options and restricted stock units |  | 3,399,124 |  | 2,817,674 |  | 2,235,775 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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