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Net Loss per Share | 12 Months Ended
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Dec. 31, 2020
Net Loss per Share |
Net Loss per Share | Note 16. Net Loss per Share As the Company had a net loss 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 basic and diluted net loss per share (in thousands, except share and per share data):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2020 |  | 2019 |  | 2018
Numerator: | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​
Net loss | ​ | $ | (66,150) | ​ | $ | (77,187) | ​ | $ | (38,924)
Denominator: | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​
Weighted-average shares used to compute net loss per common share, basic and diluted | ​ |  | 34,396,446 |  |  | 25,894,024 |  |  | 22,364,515
Net loss per shares, basic and diluted | ​ | $ | (1.92) | ​ | $ | (2.98) | ​ | $ | (1.74)
​ The following outstanding shares of potentially dilutive securities have been excluded from diluted net loss per share calculations 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 | ​ | 4,648,120 |  | 3,681,521 |  | 3,178,441
Common stock warrants | ​ | 2,750,000 | ​ | 2,750,000 | ​ | 2,750,000
Restricted stock units | ​ | 244,545 | ​ | 278,482 | ​ | 418,450
ESPP shares | ​ | 28,445 | ​ | 40,275 | ​ | 52,134
Total |  | 7,671,110 |  | 6,750,278 |  | 6,399,025
​

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