Quarterly report pursuant to Section 13 or 15(d)

Summary of Option Activity (Detail)

v3.23.3
Summary of Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Equity [Abstract]    
Beginning Balance 1,000  
Forfeited, cancelled, or expired [1] 0  
Ending Balance 1,000 1,000
Options exercisable as of September 30, 2023 1,000  
Vested options expired during the period ended September 30, 2023 0  
Beginning Balance $ 7,254.45  
Forfeited, cancelled, or expired [1] 12,184.46  
Ending Balance 6,445.54 $ 7,254.45
Options exercisable as of September 30, 2023 6,445.54  
Vested options expired during the period ended September 30, 2023 $ 0  
Weighted-Average Remaining Contractual Term (Years)    
Options outstanding 5 years 3 months 18 days 5 years 9 months 18 days
Options exercisable 5 years 3 months 18 days  
Options outstanding [2] $ 0 $ 0
Options exercisable [2] $ 0  
[1] Shares rounded to less than 1,000 as adjusted for the 2023 reverse stock split.
[2] The intrinsic value calculation does not include negative values, which can occur when the fair market value on the reporting date is less than the exercise price of the award.