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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Property Plant And Equipment | Depreciation expense is recognized using the straight-line method over the estimated useful life of each asset as follows:
|  | Estimated Useful Life
Laboratory equipment |  | 5 years
Computer software and equipment |  | 3 years
Office furniture and fixtures |  | 7 years
Leasehold improvements |  | Shorter of useful life or remaining term of related lease
Property and equipment consist of the following at December 31, 2020 and 2019 (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
Property and equipment: |  |  |  |  |  |  |  |
Laboratory equipment |  | $ | 3,277 |  |  | $ | 1,715 |
Computer software and equipment |  |  | 650 |  |  |  | 595 |
Office furniture and fixtures |  |  | 301 |  |  |  | 301 |
Leasehold improvements |  |  | 317 |  |  |  | 317 |
Construction in progress |  |  | 498 |  |  |  | 138 |
|  | $ | 5,043 |  |  | $ | 3,066 |
Accumulated depreciation |  |  | (2,878 | ) |  |  | (2,829 | )
Property and equipment, net |  | $ | 2,165 |  |  | $ | 237 |
Summary of Basic and Diluted Net Loss per Share Attributable to Common Stockholders | Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share data):
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |
Net loss |  | $ | (22,127 | ) |  | $ | (16,306 | )
Accretion of redeemable convertible preferred stock |  |  | (115 | ) |  |  | (313 | )
Net loss attributable to common stockholders |  | $ | (22,242 | ) |  | $ | (16,619 | )
Denominator: |  |  |  |  |  |  |  |
Weighted-average common shares—basic and diluted |  |  | 8,590,205 |  |  |  | 202,093 |
Net loss per share attributable to common stockholders—basic and diluted |  | $ | (2.59 | ) |  | $ | (82.23 | )
Summary of Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss per Share | The following table sets forth the potentially dilutive securities that have been excluded from the calculation of diluted net loss per share because to include them would be anti-dilutive (in common stock equivalent shares retroactively adjusted):
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Series A-1 redeemable convertible preferred stock |  |  | — |  |  |  | 986,466 |
Series A-2 redeemable convertible preferred stock |  |  | — |  |  |  | 773,712 |
Series A-3 redeemable convertible preferred stock |  |  | — |  |  |  | 872,031 |
Series A-4 redeemable convertible preferred stock |  |  | — |  |  |  | 579,993 |
Series B redeemable convertible preferred stock |  |  | — |  |  |  | 2,852,177 |
Stock options |  |  | 1,428,886 |  |  |  | 792,439 |
Total |  |  | 1,428,886 |  |  |  | 6,856,818 |

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