Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Summary Of Diluted Shares Outstanding (Detail)

v3.21.2
Net Loss Per Share - Summary Of Diluted Shares Outstanding (Detail) - shares
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Series C Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of EPS 0 2,566,186
Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of EPS 0 432,500