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Stock-Based Compensation - Additional Information (Details)
1 Months Ended 3 Months Ended
Jun. 30, 2023
Nov. 05, 2018
$ / shares
shares
Mar. 31, 2021
USD ($)
d
$ / shares
shares
Dec. 31, 2020
shares
Jul. 31, 2019
shares
Mar. 31, 2021
USD ($)
$ / shares
shares
Mar. 31, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of common stock approved and reserved for issuance     9,570,594 8,343,673   9,570,594  
Incremental stock-based compensation | $           $ 300,000  
Stock Options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of common stock approved and reserved for issuance     6,263,306 5,071,740   6,263,306  
Grant date fair value of options granted | $ / shares           $ 14.55 $ 12.67
Stock-based compensation, Intrinsic value of options exercised | $           $ 200,000  
Total unrecognized stock-based compensation related to unvested stock option awards granted | $     $ 46,500,000     $ 46,500,000  
Unrecognized stock-based compensation related to unvested stock, expected to recognize over weighted-average period           3 years  
Expected dividend yield           0.00% 0.00%
PSUs              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of common stock approved and reserved for issuance     227,537     227,537  
Granted     151,849        
Weighted-average grant-date fair value     50.00%        
Granted | $ / shares     $ 18.53     $ 7.09  
Vested           0  
Vested and associated expenses | $           $ 0  
Total unrecognized stock-based compensation | $     $ 3,400,000     $ 3,400,000  
PSUs | Forecast              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Weighted-average grant-date fair value 50.00%            
Executive Performance Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expected dividend yield           0.00%  
Granted | $ / shares     $ 75,688        
Common stock trading days | d     30        
Executive Performance Stock Units | NDA Approval and Achievement              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Weighted-average grant-date fair value     25.00%        
Executive Performance Stock Units | Incremental Performance of Common Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Weighted-average grant-date fair value     25.00%        
Restricted Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized stock-based compensation related to unvested stock, expected to recognize over weighted-average period           1 year 8 months 12 days  
Vested           33,396 33,398
Total unrecognized compensation expense related to unvested restricted stock | $     $ 700,000     $ 700,000  
Restricted Stock | Founder              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted | $ / shares   $ 2.936          
Restricted Stock | Common Stock | Founder              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock issued for services   562,500          
Vesting period   4 years          
2019 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity incentive plans, description           Shares subject to outstanding awards under the 2018 Plan as of the effective date of the 2019 Plan that are subsequently canceled, forfeited or repurchased by the Company will be added to the shares reserved under the 2019 Plan. In addition, the number of shares of common stock available for issuance under the 2019 Plan will be automatically increased on the first day of each calendar year during the ten-year term of the 2019 Plan, beginning with January 1, 2020 and ending with January 1, 2029, by an amount equal to 5% of the outstanding number of shares of the Company’s common stock on December 31st of the preceding calendar year or such lesser amount as determined by the Company’s board of directors. As of March 31, 2021, 1,393,102 shares of common stock were available for issuance under the 2019 Plan.  
Shares of common stock expiration term         10 years    
Shares of common stock beginning date         Jan. 01, 2020    
Shares of common stock ending date         Jan. 01, 2029    
Percentage of annual increase in common stock available for issuance         5.00%    
Number of common stock approved and reserved for issuance     1,393,102     1,393,102  
2020 Inducement Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of common stock for future issuance             750,000
Common stock available for issuance           686,300  
Number of additional common stock for future issuance       750,000      
2019 Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Equity incentive plans, description           A total of 500,000 shares of common stock were approved to be initially reserved for issuance under the ESPP. In addition, the number of shares of common stock available for issuance under the ESPP will be automatically increased on the first day of each calendar year during the first ten years of the term of the ESPP, beginning with January 1, 2020 and ending with January 1, 2029, by an amount equal to the lesser of (i) 1% of the outstanding number of shares of common stock on December 31st of the preceding calendar year, (ii) 1,500,000 shares of common stock or (iii) such lesser amount as determined by the Company’s board of directors. During the three months ended March 31, 2021, no shares were issued under the ESPP. As of March 31, 2021, the Company had 1,000,349 shares available for future issuance under the ESPP.  
Shares of common stock expiration term         10 years    
Shares of common stock beginning date         Jan. 01, 2020    
Shares of common stock ending date         Jan. 01, 2029    
Percentage of annual increase in common stock available for issuance         1.00%    
Number of common stock approved and reserved for issuance     1,000,349     1,000,349  
Stock issued for services         500,000 0  
Annual increase in common stock available for issuance, shares         1,500,000