XML 60 R39.htm IDEA: XBRL DOCUMENT v3.21.1
Share-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Oct. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Common stock, shares issued   19,931,660 13,788,982
ESPP Purchases      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of common shares issuable under the plan (in shares) 225,188    
Percentage of increase in number of shares of capital stock issued and outstanding 1.00%    
Percent of purchase shares of common stock 85.00%    
First offering period 6 months    
Commencement date of first six month offering period Jan. 01, 2020    
Second offering period 6 months    
Commencement date of second six month offering period Jul. 01, 2020    
Common stock, shares issued   7,272  
Number of shares of common stock available for issuance under ESPP   355,806  
2019 Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of common shares issuable under the plan (in shares)   2,844,193  
Percentage of increase in number of shares of capital stock issued and outstanding   4.00%  
Common stock reserved and available for issuance as future option grants   1,433,991  
Vesting period   4 years  
Percentage of option vesting   25.00%  
Terms of award   The Board determines the period over which options become exercisable and options generally vest over a four-year period, with 25% of options vesting on the first anniversary of employment, and thereafter, the remaining options vesting quarterly, over the following 36-month period. The options will expire within ten years from the date of grant.  
Remaining option vesting period   36 months  
Expiration period   10 years  
Unrecognized stock option granted under plan   $ 13.5  
Unrecognized weighted average period   2 years 6 months  
2020 Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Estimated total grant date fair value of options vested   $ 800,000  
Weighted average fair value options granted   $ 21.88 $ 2.90
Maximum | ESPP Purchases      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Period for increase in number of shares of common stock reserved for issuance 10 years    
Maximum | 2019 Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Period for increase in number of shares of common stock reserved for issuance   10 years