Quarterly report pursuant to Section 13 or 15(d)

Summary of Option Activity (Detail)

v3.22.1
Summary of Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Equity [Abstract]    
Beginning Balance 70,000  
Forfeited, cancelled, or expired (2,000)  
Ending Balance 68,000 70,000
Options exercisable at March 31, 2022 65,000  
Vested options expired during the period ended March 31, 2022 0  
Beginning Balance $ 62.00  
Forfeited, cancelled, or expired 78.00  
Ending Balance 61.75 $ 62.00
Options exercisable at March 31, 2022 63.75  
Vested options expired during the period ended March 31, 2022 $ 0  
Weighted-Average Remaining Contractual Term (Years)    
Options outstanding 6 years 9 months 18 days 7 years 1 month 6 days
Options exercisable 6 years 8 months 12 days  
Options outstanding [1] $ 1 $ 15
Options exercisable [1] $ 0  
[1] 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.