Redeemable Convertible Preferred Stock and Stockholders' Equity	12 Months Ended
Dec. 31, 2022
Equity [Abstract]
Redeemable Convertible Preferred Stock and Stockholders' Equity	7. Redeemable Convertible Preferred Stock and Stockholders' Equity Series A-1, Series A-2, and Series B Redeemable Convertible Preferred Stock As of December 31, 2020, the authorized capital stock of the Company included 338,973,691 shares of $0.0001 par value preferred stock, of which 20,000,000 shares were designated as Series A-1 redeemable convertible preferred stock (“Series A-1”); 107,194,866 shares were designated as Series A-2 redeemable convertible preferred stock (“Series A-2”) and 211,778,825 shares were designated as Series B redeemable convertible preferred stock (“Series B”). On January 8, 2021, the Company issued and sold 87,259,605 shares of Series B redeemable convertible preferred stock at a price of $0.52 per share, for total gross and net proceeds of $45.4 million. On February 9, 2021, the Company completed its IPO. Upon the closing of the IPO, all shares of Series A-1, A-2 and B redeemable convertible preferred stock then outstanding automatically converted into 24,924,501 shares of common shares. Upon conversion of the redeemable convertible preferred stock, the Company reclassified the carrying value of the redeemable convertible preferred stock to common shares and additional paid-in capital. Preferred Stock The Company has authorized up to 10,000,000 shares of preferred stock, $0.0001 par value per share, for issuance. The preferred stock will have such rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges, and liquidation preferences, as shall be determined by the Company’s Board of Directors upon its issuance. At December 31, 2022 and December 31, 2021, there were no shares of preferred stock outstanding. Common Stock As of December 31, 2022 and 2021, the Company’s authorized capital stock included 400,000,000 shares of its $0.0001 par value common stock. Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders provided, however, that, except as otherwise required by law, holders of common stock shall not be entitled to vote on any amendment to the Company’s Certificate of Incorporation, as amended (the “Certificate of Incorporation”), that relates solely to the terms of one or more outstanding series of preferred stock if the holders of such affected series are entitled, either separately or together with the holders of one or more other such series, to vote thereon pursuant to the Certificate of Incorporation or pursuant to the Delaware General Corporation Law. Common stockholders are entitled to receive dividends, as may be declared by the Company’s board of directors, if any, subject to the preferential dividend rights of the preferred stock. No dividends have been declared or paid as of and for either of the years ended December 31, 2022 and 2021. At-the-Market Sales During 2022, the Company sold 866,030 shares of common stock at a weighted average price per share of $5.25 for aggregate net proceeds of $4.4 million, after deducting commissions. Offering and Concurrent Private Placement In December 2022, the Company issued 15,302,267 shares of common stock in an underwritten public offering at a price per share of $4.30 for proceeds of $61.3 million, after deducting underwriting discounts, commissions, and offering expenses payable by the Company. In a separate concurrent private placement, the Company sold 11,627,907 shares of common stock at a price of $4.30 per share to RA Capital Healthcare Fund, L.P. for proceeds of $49.5 million, after deducting related placement fees payable by the company.

Redeemable Convertible Preferred Stock and Stockholders' Equity

12 Months Ended

Dec. 31, 2022

Redeemable Convertible Preferred Stock and Stockholders' Equity

7. Redeemable Convertible Preferred Stock and Stockholders' Equity

Series A-1, Series A-2, and Series B Redeemable Convertible Preferred Stock

As of December 31, 2020, the authorized capital stock of the Company included 338,973,691 shares of $0.0001 par value preferred stock, of which 20,000,000 shares were designated as Series A-1 redeemable convertible preferred stock (“Series A-1”); 107,194,866 shares were designated as Series A-2 redeemable convertible preferred stock (“Series A-2”) and 211,778,825 shares were designated as Series B redeemable convertible preferred stock (“Series B”).

On January 8, 2021, the Company issued and sold 87,259,605 shares of Series B redeemable convertible preferred stock at a price of $0.52 per share, for total gross and net proceeds of $45.4 million.

On February 9, 2021, the Company completed its IPO. Upon the closing of the IPO, all shares of Series A-1, A-2 and B redeemable convertible preferred stock then outstanding automatically converted into 24,924,501 shares of common shares. Upon conversion of the redeemable convertible preferred stock, the Company reclassified the carrying value of the redeemable convertible preferred stock to common shares and additional paid-in capital.

Preferred Stock

The Company has authorized up to 10,000,000 shares of preferred stock, $0.0001 par value per share, for issuance. The preferred stock will have such rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges, and liquidation preferences, as shall be determined by the Company’s Board of Directors upon its issuance. At December 31, 2022 and December 31, 2021, there were no shares of preferred stock outstanding.

Common Stock

As of December 31, 2022 and 2021, the Company’s authorized capital stock included 400,000,000 shares of its $0.0001 par value common stock.

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders provided, however, that, except as otherwise required by law, holders of common stock shall not be entitled to vote on any amendment to the Company’s Certificate of Incorporation, as amended (the “Certificate of Incorporation”), that relates solely to the terms of one or more outstanding series of preferred stock if the holders of such affected series are entitled, either separately or together with the holders of one or more other such series, to vote thereon pursuant to the Certificate of Incorporation or pursuant to the Delaware General Corporation Law. Common stockholders are entitled to receive dividends, as may be declared by the Company’s board of directors, if any, subject to the preferential dividend rights of the preferred stock. No dividends have been declared or paid as of and for either of the years ended December 31, 2022 and 2021.

At-the-Market Sales

During 2022, the Company sold 866,030 shares of common stock at a weighted average price per share of $5.25 for aggregate net proceeds of $4.4 million, after deducting commissions.

Offering and Concurrent Private Placement

In December 2022, the Company issued 15,302,267 shares of common stock in an underwritten public offering at a price per share of $4.30 for proceeds of $61.3 million, after deducting underwriting discounts, commissions, and offering expenses payable by the Company. In a separate concurrent private placement, the Company sold 11,627,907 shares of common stock at a price of $4.30 per share to RA Capital Healthcare Fund, L.P. for proceeds of $49.5 million, after deducting related placement fees payable by the company.