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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 |  |

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