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Capitalization | 6 Months Ended
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Jun. 30, 2024
Stockholders' Equity Note [Abstract] |
Capital structure | 6. Capitalization In August 2019, the Company entered into an At the Market Offering Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald and RBC Capital Markets, LLC (together, the “Sales Agents”), pursuant to which, the Company may offer and sell shares of its common stock, having an aggregate offering price of up to $125.0 million from time to time through the Sales Agents by any method that is deemed to be an “at the market offering” as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended. No shares were sold during the three and six months ended June 30, 2024 and 2023. The remaining shares of the Company’s common stock available to be issued and sold, under the At the Market Offering, have an aggregate offering price of up to $93.0 million as of June 30, 2024. ​

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