Annual report pursuant to Section 13 and 15(d)

Organization and Description of the Business - Additional Information (Details)

v3.20.4
Organization and Description of the Business - Additional Information (Details)
1 Months Ended 12 Months Ended
Jun. 11, 2020
USD ($)
$ / shares
shares
Feb. 04, 2020
USD ($)
$ / shares
shares
Jun. 25, 2018
USD ($)
$ / shares
shares
Jun. 08, 2018
$ / shares
Feb. 28, 2021
USD ($)
Sep. 30, 2020
USD ($)
Jul. 31, 2020
shares
Dec. 31, 2020
USD ($)
Segment
$ / shares
shares
Dec. 31, 2019
USD ($)
shares
Organization And Description Of Business [Line Items]                  
Number of operating segments | Segment               1  
Stockholders equity, reverse stock split       1-for-5.62          
Stockholders equity, stock split, conversion ratio       0.1779          
Minimum price post-split | $ / shares       $ 15.884          
Adjusted price post split | $ / shares       $ 7.942          
Accumulated deficit | $               $ 126,024,000 $ 84,282,000
Pre funded warrants to purchase shares of common stock | shares 909,091 2,884,615           3,793,706  
Pre funded warrants exercise price | $ / shares $ 0.001 $ 0.001           $ 0.001  
Common stock, shares authorized | shares               125,000,000 125,000,000
Preferred stock, shares authorized | shares               10,000,000 10,000,000
Underwritten Public Offering                  
Organization And Description Of Business [Line Items]                  
Issuance of common stock | shares 7,590,909 18,965,385         427,707    
Pre funded warrants to purchase shares of common stock | shares 909,091 2,884,615              
Pre funded warrants exercise price | $ / shares $ 0.001 $ 0.001              
Common stock, shares issued, price per share | $ / shares 5.50 2.60              
Warrant issue price per share | $ / shares $ 5.499 $ 2.599              
Net proceeds from the public offering | $ $ 45,800,000 $ 53,400,000              
Underwritten Public Offering | Existing Stockholder, Equal Talent Investments Limited, and one of the Directors                  
Organization And Description Of Business [Line Items]                  
Net proceeds from the public offering | $ $ 8,500,000                
Underwritten Public Offering | Existing Stockholder, Equal Talent Investments Limited, and one of the Directors                  
Organization And Description Of Business [Line Items]                  
Net proceeds from the public offering | $   $ 22,900,000              
IPO                  
Organization And Description Of Business [Line Items]                  
Issuance of common stock | shares     5,750,000            
Common stock, shares issued, price per share | $ / shares     $ 15.00            
Net proceeds from the public offering | $     $ 77,700,000            
Payments of stock issuance costs | $     $ 8,600,000            
Convertible preferred stock converted into common stock | shares     12,263,126            
Overallotment Option                  
Organization And Description Of Business [Line Items]                  
Issuance of common stock | shares     750,000            
ATM Agreement | Cowen and Company LLC                  
Organization And Description Of Business [Line Items]                  
Percentage of commission on gross sales proceeds of issuance of common stock           3.00%      
ATM Agreement | Cowen and Company LLC | Subsequent Event                  
Organization And Description Of Business [Line Items]                  
Issuance of common stock | $         $ 11,000,000        
Minimum                  
Organization And Description Of Business [Line Items]                  
Sufficient cash and cash equivalents available period term               12 months  
Maximum | ATM Agreement | Cowen and Company LLC                  
Organization And Description Of Business [Line Items]                  
Common stock aggregate offering price | $           $ 50,000,000.0