Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Stock Option Activity (Detail)

v3.22.2.2
Stock-based Compensation - Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Number of Shares    
Beginning balance - Outstanding (shares) 1,542,126  
Granted (shares) 664,000  
Forfeited/Cancelled (shares) (81,124)  
Ending balance - Outstanding (shares) 2,125,002 1,542,126
Exercisable (shares) 1,052,080  
Vested or expected to vest (shares) 2,125,002  
Weighted- Average Exercise Price    
Beginning balance - Outstanding (in dollars per share) $ 14.89  
Granted (in dollars per share) 4.15  
Forfeited/Cancelled (in dollars per share) 7.42  
Ending balance - Outstanding (in dollars per share) 11.82 $ 14.89
Exercisable (in dollars per share) 18.11  
Vested or expected to vest (in dollars per share) $ 11.82  
Weighted- Average Remaining Contractual Life (in years)    
Balance - Outstanding 7 years 7 months 9 days 7 years 5 months 12 days
Exercisable 6 years 3 months 18 days  
Vested or expected to vest 7 years 7 months 9 days  
Aggregate Intrinsic Value ($000)    
Balance - Outstanding $ 49 $ 42
Exercisable 0  
Vested and expected to vest $ 49