Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Diluted Weighted Average Shares Outstanding (Detail)

v3.21.2
Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Diluted Weighted Average Shares Outstanding (Detail) - shares
6 Months Ended
Jun. 30, 2021
Jun. 30, 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 15,175,997 14,278,079
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 2,848,693 1,917,649
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 12,327,304 12,360,430