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Preferred and Common Stock - Additional Information (Details) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 05, 2020 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) Vote $ / shares shares | May 31, 2020 shares | Jan. 31, 2020 $ / shares | Jan. 10, 2020 $ / shares shares | Dec. 31, 2019 $ / shares shares
Class Of Stock [Line Items] |  |  |  |  |  |
Common stock shares authorized | 200,000,000 | 200,000,000 |  |  | 400,000,000 | 275,000,000
Common stock par value | $ / shares | $ 0.001 | $ 0.001 |  |  | $ 0.001 | $ 0.001
Preferred Stock, Shares Authorized | 10,000,000 |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares | $ 0.001 |  |  |  |  |
Common stock, voting rights |  | The holders of common stock are entitled to one vote for each share held. |  |  |  |
Number of common stock voting rights | Vote |  | 1 |  |  |  |
Reverse stock split of issued and outstanding common stock |  | one-for-34.483 |  |  |  |
Net proceeds from initial public offering | $ |  | $ 59,892 |  |  |  |
Common stock shares issued |  | 12,932,377 |  |  |  | 230,860
Series C Redeemable Convertible Preferred Stock |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Shares issued and sold, public offering price | $ / shares |  |  |  | $ 0.38811 |  |
IPO |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Common stock shares issued |  |  | 313,794 |  |  |
Non Employee Compensation |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Common stock shares issued |  | 5,000 |  |  |  |
Common Stock |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Issuance of common stock from initial public offering, net of issuance costs, Shares |  | 4,025,000 |  |  |  |
Gross proceeds from initial public offering | $ | $ 64,400 |  |  |  |  |
Net proceeds from initial public offering | $ | $ 57,300 |  |  |  |  |
Preferred stock converted into common stock | 8,335,248 |  |  |  |  |
Number of warrants issued to purchase common stock | 313,794 | 681,256 |  |  |  |
Warrants exercise price, per share | $ / shares |  | $ 8.63 |  |  |  |
Common Stock | Director |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Vested share of common stock | 19,661 |  |  |  |  |
Common Stock | Exercise of Underwriters' Option |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Issuance of common stock from initial public offering, net of issuance costs, Shares | 525,000 |  |  |  |  |
Common Stock | IPO |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Issuance of common stock from initial public offering, net of issuance costs, Shares | 4,025,000 |  |  |  |  |
Shares issued and sold, public offering price | $ / shares | $ 16.00 |  |  |  |  |
Warrants | Series C Redeemable Convertible Preferred Stock |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Net proceeds from issuance of preferred stock allocated to warrants | $ |  | $ 700 |  |  |  |

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