Financings	9 Months Ended
Sep. 30, 2022
Text Block [Abstract]
Financings	2. Financings 2021 Loan and Security Agreement On August 6, 2021, the Company entered into a Loan and Security Agreement (the "Loan and Security Agreement") with Silicon Valley Bank and affiliates of Silicon Valley Bank (collectively, "SVB"). The Loan and Security Agreement provided for an initial term loan of $25.0 million funded at the closing (the "Term A Tranche"), with an additional tranche of $25.0 million available if certain funding and clinical milestones were met by August 31, 2022 (the "Term B Tranche"). Effective December 28, 2021, the Company, entered into a First Amendment (the “Amendment”) to the Loan and Security Agreement (as so amended, the "Amended Loan and Security Agreement"). The Amended Loan and Security Agreement extended the interest-only period through August 31, 2022. The Amended Milestones (as defined below) were not met by the Company on or prior to August 31, 2022, and therefore, the interest-only period was not extended beyond August 31, 2022. The Amendment also eliminated the Term B Tranche, which remained unfunded, leaving only the Term A Tranche (the "SVB Facility"). Under the Amended Loan and Security Agreement, the SVB Facility will mature on August 1, 2023. Please refer to Note 4 - Debt, for further discussion of the Loan and Security Agreement and the Amended Loan and Security Agreement. 2022 Equity Distribution Agreement On August 12, 2022, the Company entered into an Equity Distribution Agreement (the "Equity Distribution Agreement") with Piper Sandler & Co. ("Piper Sandler"), pursuant to which the Company can offer and sell, from time to time at its sole discretion, shares of its common stock having an aggregate offering price of up to $50.0 million through Piper Sandler as its sales agent in an "at the market offering." Piper Sandler will receive a commission of 3.0% of the gross proceeds of any common stock sold under the Equity Distribution Agreement. During the three and nine months ended September 30, 2022, there have been no sales of the Company's common stock under the Equity Distribution Agreement.

Financings

9 Months Ended

Sep. 30, 2022

2021 Loan and Security Agreement

On August 6, 2021, the Company entered into a Loan and Security Agreement (the "Loan and Security Agreement") with Silicon Valley Bank and affiliates of Silicon Valley Bank (collectively, "SVB"). The Loan and Security Agreement provided for an initial term loan of $25.0 million funded at the closing (the "Term A Tranche"), with an additional tranche of $25.0 million available if certain funding and clinical milestones were met by August 31, 2022 (the "Term B Tranche").

Effective December 28, 2021, the Company, entered into a First Amendment (the “Amendment”) to the Loan and Security Agreement (as so amended, the "Amended Loan and Security Agreement").

The Amended Loan and Security Agreement extended the interest-only period through August 31, 2022. The Amended Milestones (as defined below) were not met by the Company on or prior to August 31, 2022, and therefore, the interest-only period was not extended beyond August 31, 2022. The Amendment also eliminated the Term B Tranche, which remained unfunded, leaving only the Term A Tranche (the "SVB Facility"). Under the Amended Loan and Security Agreement, the SVB Facility will mature on August 1, 2023.

Please refer to Note 4 - Debt, for further discussion of the Loan and Security Agreement and the Amended Loan and Security Agreement.

2022 Equity Distribution Agreement

On August 12, 2022, the Company entered into an Equity Distribution Agreement (the "Equity Distribution Agreement") with Piper Sandler & Co. ("Piper Sandler"), pursuant to which the Company can offer and sell, from time to time at its sole discretion, shares of its common stock having an aggregate offering price of up to $50.0 million through Piper Sandler as its sales agent in an "at the market offering." Piper Sandler will receive a commission of 3.0% of the gross proceeds of any common stock sold under the Equity Distribution Agreement. During the three and nine months ended September 30, 2022, there have been no sales of the Company's common stock under the Equity Distribution Agreement.