Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Diluted Weighted Average Shares Outstanding (Detail) - shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Potentially antidilutive securities outstanding excluded from the computation of diluted weighted average shares | 14,252,787 | 4,851,784 |
| Employee Stock Options [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Potentially antidilutive securities outstanding excluded from the computation of diluted weighted average shares | 1,925,197 | 1,818,588 |
| Warrants [Member] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Potentially antidilutive securities outstanding excluded from the computation of diluted weighted average shares | 12,327,590 | 3,033,196 |