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Net Loss Per Common Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Net Loss Per Common Share | Net Loss Per Common Share As the Company had net losses for the years ended December 31, 2020, 2019 and 2018, all potential common shares were determined to be anti-dilutive. The following table sets forth the computation of the basic and diluted net loss per share during the years ended December 31, 2020, 2019 and 2018 (in thousands, except share and per share data):
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Numerator: |  |  |  |  |
Net loss | $ | (43,830) |  |  | $ | (54,568) |  |  | $ | (50,378) |
Denominator: |  |  |  |  |
Weighted-average shares used to compute net loss per common share, basic and diluted | 27,754,404 |  |  | 25,265,918 |  |  | 23,885,858 |
Net loss per common share, basic and diluted | $ | (1.58) |  |  | $ | (2.16) |  |  | $ | (2.11) |
The following outstanding shares of potentially dilutive securities have been excluded from diluted net loss per common share for the years ended December 31, 2020, 2019 and 2018 because their inclusion would be anti-dilutive:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Options to purchase common stock | 609,881 |  |  | 1,503,247 |  |  | 2,094,137 |
RSUs issued and unvested | 1,114,159 |  |  | 886,030 |  |  | 547,891 |
Warrants to purchase common stock | — |  |  | — |  |  | 4,857 |
Total | 1,724,040 |  |  | 2,389,277 |  |  | 2,646,885 |

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