Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Summary of Fair Values of Stock Options Granted (Detail)

v3.22.2.2
Stock Based Compensation - Summary of Fair Values of Stock Options Granted (Detail) - Employee Stock Option [Member] - $ / shares
3 Months Ended 9 Months Ended
Jun. 30, 2022
Sep. 30, 2022
Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock price $ 1.27    
Dividend yield 0.00%    
Expected volatility 108.00%    
Risk-free interest rate 1.92%    
Expected life 5 years 7 months 6 days    
Employee Stock Purchase Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividend yield   0.00% 0.00%
Expected life   6 months 6 months
Employee Stock Purchase Plan [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock price   $ 0.96 $ 1.80
Expected volatility   61.00% 95.00%
Risk-free interest rate   0.19% 0.05%
Employee Stock Purchase Plan [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock price   $ 1.25 $ 2.78
Expected volatility   68.00% 143.00%
Risk-free interest rate   2.52% 0.09%