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Redeemable Convertible Preferred Stock and Stockholders' Equity - Common and Preferred Stock (Details)
 12 Months Ended
Jan. 31, 2020
Vote
item
$ / shares
shares
Dec. 31, 2020
$ / shares
shares
Dec. 31, 2019
$ / shares
shares
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Number of classes of stock designated | item 2    
Number of common and preferred shares authorized 37,000,000    
Common stock, par value (dollars per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001
Preferred stock, par value (dollars per share) | $ / shares $ 0.0001    
Number of common shares authorized 35,000,000 35,000,000 10,150,000
Number of preferred shares authorized 2,000,000 2,000,000 0
Number of vote for each share of common stock | Vote 1    
Series A Redeemable convertible preferred stock      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Conversion of redeemable convertible preferred stock to common stock, shares   5,133,159  
Series A Redeemable convertible preferred stock | IPO      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Conversion of redeemable convertible preferred stock to common stock, shares 5,133,159    
Conversion price | $ / shares $ 0.70    
Series A-1 Redeemable convertible preferred stock      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Conversion of redeemable convertible preferred stock to common stock, shares   630,722  
Series A-1 Redeemable convertible preferred stock | IPO      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Conversion of redeemable convertible preferred stock to common stock, shares 630,722    
Conversion price | $ / shares $ 1.26    
Common Stock      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Issuance of common stock   2,300,000  
Number of shares issued for the conversion of redeemable convertible preferred stock   4,117,089  
Common Stock | IPO and Over-Allotment Option      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Issuance of common stock 2,300,000    
Common Stock | IPO      
Redeemable Convertible Preferred Stock and Stockholders' Equity      
Issuance of common stock 2,000,000    
Number of shares issued for the conversion of redeemable convertible preferred stock 4,117,089