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Summary of Stock Option Activity (Detail) - $ / shares
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]    
Number of shares, Beginning Balance 3,766  
Options granted, Shares 1,350  
Options forfeited, Shares (245)  
Options expired, Shares (368)  
Number of shares, Ending Balance 4,503 3,766
Weighted average exercise price, Beginning Balance $ 3.14  
Options granted, Weighted average exercise price 2.00  
Options forfeited, Weighted average exercise price 2.67  
Options expired, Weighted average exercise price 4.42  
Weighted average exercise price, Ending Balance $ 2.73 $ 3.14
Weighted average remaining contractual term, End of the period 6 years 4 months 17 days 6 years 8 months 1 day