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Net Loss Per Share | 3 Months Ended
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Mar. 31, 2018
Net Loss Per Share [Abstract] |
Net Loss Per Share | 11. Net Loss Per Share Basic and diluted net loss per share attributable to common shareholders was calculated as follows:
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Numerator: |  |  |  |  |  |
Net loss attributable to common shareholders |  | $ | (15,343 | ) |  | $ | (2,678 | )
Denominator: |  |  |  |  |  |  |  |
Weighted-average common shares outstanding - basic and diluted |  |  | 36,137,120 |  |  |  | 6,795,627 |
Net loss per share attributable to common shareholders - basic and diluted |  | $ | (0.42 | ) |  | $ | (0.39 | )
The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common shareholders for the periods indicated because including them would have had an anti-dilutive effect:
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Shares issuable upon conversion of the 2021 Convertible Notes |  |  | 1,620,948 |  |  |  | - |
Warrants exercisable for common shares |  |  | 14,102 |  |  |  | - |
Options to purchase common shares |  |  | 8,635,089 |  |  |  | 6,207,401 |
Redeemable Series A convertible preferred shares (as converted to common shares) |  |  | - |  |  |  | 9,807,564 |
Redeemable Series A convertible preferred shares (as converted to common shares) |  |  | - |  |  |  | 9,668,224 |
|  |  | 10,270,139 |  |  |  | 25,683,189 |

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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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