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Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning Options outstanding 904,220  
Granted 335,502  
Exercised (4,778)  
Forfeited (140,950)  
Expired (317,854)  
Ending Options outstanding 776,140 904,220
Nonvested options, Shares 428,165  
Vested and exercisable, Shares 347,975  
Beginning Weighted- Average Exercise Price Options outstanding $ 21.04  
Weighted- Average Exercise Price Granted 6.41  
Weighted- Average Exercise Price Exercised 2.44  
Weighted- Average Exercise Price Forfeited 21.89  
Weighted- Average Exercise Price Expired 22.83  
Ending Weighted- Average Exercise Price Options outstanding 13.93 $ 21.04
Nonvested options, Weighted- Average Exercise Price 20.42  
Vested and exercisable, Weighted- Average Exercise Price $ 5.96  
Weighted- Average Remaining Contractual Term (years) 6 years 7 months 6 days 7 years 3 months 18 days
Nonvested options, Weighted- Average Remaining Contractual Term (years) 7 years 4 months 24 days  
Vested and exercisable, Weighted- Average Remaining Contractual Term (years) 5 years 7 months 6 days  
Aggregate Intrinsic Value $ 523 $ 655
Nonvested options, Aggregate Intrinsic Value 28  
Vested and exercisable, Aggregate Intrinsic Value $ 495