Net Loss Per Share - Antidilutive Securities (Details) - shares
|
3 Months Ended |
Mar. 31, 2020 |
Mar. 31, 2019 |
| Diluted net loss per share attributable to common stockholders |
|
|
| Antidilutive securities excluded from computation of of diluted weighted average shares outstanding |
17,249,162
|
17,642,935
|
| Convertible preferred stock (as converted to common stock) |
|
|
| Diluted net loss per share attributable to common stockholders |
|
|
| Antidilutive securities excluded from computation of of diluted weighted average shares outstanding |
|
|
| Warrants to purchase convertible preferred stock (as converted to common stock) |
|
|
| Diluted net loss per share attributable to common stockholders |
|
|
| Antidilutive securities excluded from computation of of diluted weighted average shares outstanding |
|
|
| Unvested restricted common stock |
|
|
| Diluted net loss per share attributable to common stockholders |
|
|
| Antidilutive securities excluded from computation of of diluted weighted average shares outstanding |
299,700
|
1,816,047
|
| Stock options to purchase common stock |
|
|
| Diluted net loss per share attributable to common stockholders |
|
|
| Antidilutive securities excluded from computation of of diluted weighted average shares outstanding |
16,949,462
|
15,826,888
|