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Organization and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) $ / shares shares | Jul. 31, 2020 USD ($) $ / shares shares | Nov. 30, 2019 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Nov. 13, 2019 shares
Subsidiary Sale Of Stock [Line Items] |  |  |  |  |  |
Date of incorporation |  |  |  | Jun. 30, 2019 |  |
Reorganization exchange of equity percentage of ordinary shares exchanged |  |  |  | 100.00% |  |
Reorganization exchange of equity percentage of common stock issued upon exchange |  |  |  | 100.00% |  |
Proceeds from issuance of common stock |  |  |  |  | $ 11 |
Reverse stock split conversion ratio |  |  | 0.160849 |  |  |
Proceeds from issuance of common stock, net of underwriters discount and commissions |  |  |  |  | $ 11 |
Cash and cash equivalents |  |  |  | $ 204,600 |  |
Common Stock |  |  |  |  |  |
Subsidiary Sale Of Stock [Line Items] |  |  |  |  |  |
Convertible preferred stock automatically converted into common stock | shares |  |  | 7,077,366 |  |  | 7,077,366
Public Offerings | Common Stock |  |  |  |  |  |
Subsidiary Sale Of Stock [Line Items] |  |  |  |  |  |
Shares issued and sold | shares |  |  | 6,100,390 | 6,072,040 | 6,100,390 |
IPO price per share | $ / shares |  |  | $ 16.00 |  |  |
Proceeds from issuance of common stock |  |  | $ 87,700 |  |  |
Payment of underwriting discounts, commissions |  |  | 6,800 |  |  |
Other offering expenses |  |  | 3,100 |  |  |
Proceeds from issuance of common stock, net of underwriters discount and commissions |  |  | $ 87,700 |  |  |
Underwriters option | Common Stock |  |  |  |  |  |
Subsidiary Sale Of Stock [Line Items] |  |  |  |  |  |
Shares issued and sold | shares |  | 397,440 | 795,703 |  |  |
Underwritten public offering | Common Stock |  |  |  |  |  |
Subsidiary Sale Of Stock [Line Items] |  |  |  |  |  |
Shares issued and sold | shares | 3,025,000 | 3,047,040 |  |  |  |
IPO price per share | $ / shares | $ 28.00 | $ 27.50 |  |  |  |
Proceeds from issuance of common stock | $ 79,500 | $ 78,200 |  |  |  |
Payment of underwriting discounts, commissions | 4,600 | 5,000 |  |  |  |
Other offering expenses | 600 | 600 |  |  |  |
Gross proceeds from issue of common stock | 84,700 | 83,800 |  |  |  |
Proceeds from issuance of common stock, net of underwriters discount and commissions | $ 79,500 | $ 78,200 |  |  |  |

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