Annual report pursuant to Section 13 and 15(d)

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

v3.23.1
Stock Based Compensation - Summary of Fair Values of Purchase Options Granted (Detail) - Employee Stock Option [Member] - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 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 95.00% 95.00%
Risk-free interest rate 0.05% 0.05%
Employee Stock Purchase Plan [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock price $ 2.78 $ 2.78
Expected volatility 143.00% 143.00%
Risk-free interest rate 0.09% 0.09%