General form of registration statement for all companies including face-amount certificate companies

Stock-based Compensation - Additional Information (Detail)

v3.21.1
Stock-based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock option, aggregate grant date fair value $ 259,674      
Intrinsic value of options outstanding     $ 17,600,000  
Intrinsic value of options exercisable     17,400,000  
Number of options to purchase stock vested     $ 0  
Weighted-average grant date fair value     $ 6.45 $ 3.02
Fair value of options vested     $ 573,695 $ 1,436,608
Unrecognized stock-based compensation of unvested options     $ 1,709,426  
Unrecognized stock-based compensation, expected to be recognized over weighted-average period     1 year 8 months 19 days  
Restricted stock units issued     0 0
Number of stock options granted 68,628 0 227,300 546,348
Stock option, strike price $ 6.82      
2020 Equity Incentive Plan [Member]        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Number of shares available for grant     8,650,000  
2011 Equity Incentive Plan [Member]        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock option, aggregate grant date fair value     $ 1,466,644 $ 1,650,487
Restricted Stock Units (RSUs) [Member]        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Restricted stock units outstanding     0 0