XML 80 R68.htm IDEA: XBRL DOCUMENT v3.22.0.1
Summary of Activity for Stock Options (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Stock Options Number Outstanding    
Beginning Balance 550,769  
Cancelled or Expired (6,142)  
Exercised (29,934)  
Ending Balance 514,693 550,769
Vested or expected to vest as of December 31, 2021 514,693  
Exercisable as of December 31, 2021 514,693  
Stock Options Average Exercise Price per share    
Beginning Balance $ 5.56  
Cancelled or Expired 21.46  
Exercised 10.00  
Ending Balance 5.11 $ 5.56
Vested or expected to vest as of December 31, 2021 5.11  
Exercisable as of December 31, 2021 $ 5.11  
Stock Options Remaining Contractual Life (in years)    
Weighted Average Remaining Contractual Term (Years) 4 years 10 months 17 days 5 years 10 months 9 days
Vested or expected to vest as of December 31, 2021 4 years 10 months 17 days  
Exercisable as of December 31, 2021 4 years 10 months 17 days  
Stock Options Average Intrinsic Value    
Average intrinsic value $ 11,850,930 $ 1,875,719
Vested or expected to vest as of December 31, 2021 11,850,930  
Exercisable as of December 31, 2021 $ 11,850,930