Annual report pursuant to Section 13 and 15(d)

Common Stock - Summary of Fair Value of Option Awards (Detail)

v3.22.0.1
Common Stock - Summary of Fair Value of Option Awards (Detail)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Risk-free interest rates 0.66% 0.94%
Expected dividend yield 0.00% 0.00%
Expected life 6 years 6 years
Expected volatility 110.10% 108.78%
Forfeiture rate 0.00% 0.00%