Commitments and Contingencies	6 Months Ended
Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies License Agreement The Company has a license agreement with Amgen (see Note 12 to the consolidated financial statements of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022). Letter of Credit In September 2021, in connection with the Watertown, Massachusetts lease, the Company entered into a $0.9 million standby letter of credit which initially expired on September 10, 2022 and was renewed to expire on September 11, 2023. The standby letter of credit will automatically renew for subsequent annual periods through December 2032. Remittance of funds from the letter of credit was not probable and the full amount was available as of June 30, 2023. The Company did not recognize a liability in the condensed consolidated balance sheet. Purchase Commitment In November 2021, the Company entered into a statement of work ("SOW") with FUJIFILM Diosynth Biotechnologies Texas, LLC for $3.8 million under its existing master services agreement for the manufacturing of VGL101. If the Company terminates the SOW before completion, it may be required to pay fees ranging from 0% to 100%. The amount due upon an early termination depends on the length of time prior to the commencement of specific stages of the SOW. The SOW is expected to incur costs over approximately 2 years. As of June 30, 2023, approximately 56% of work has been completed on this SOW. Contingencies From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of business. The Company accrues a liability for such matters when it is probable that future expenses will be incurred and can be reasonably estimated. As of June 30, 2023, the Company does not have any significant legal disputes that require a loss liability to be recorded. 401(k) Plan The Company has a defined-contribution plan under Section 401(k) of the Internal Revenue Code of 1986 (the “401(k) Plan”). The 401(k) Plan covers all employees who meet defined minimum age and service requirements and allows participants to defer a portion of their annual compensation on a pre-tax basis. Company contributions are discretionary and contributions in the amount of $0.3 million were made during the six months ended June 30, 2023. Indemnification Agreements In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, contract research organizations, business partners, and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with members of its Board and certain of its executive officers that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. The Company has not incurred any material costs as a result of such indemnifications and is not currently aware of any indemnification claims. Legal Proceedings The Company is not currently party to any material legal proceedings. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company expenses as incurred the costs related to such legal proceedings.

Commitments and Contingencies

6 Months Ended

Jun. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

12. Commitments and Contingencies

License Agreement

The Company has a license agreement with Amgen (see Note 12 to the consolidated financial statements of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022).

Letter of Credit

In September 2021, in connection with the Watertown, Massachusetts lease, the Company entered into a $0.9 million standby letter of credit which initially expired on September 10, 2022 and was renewed to expire on September 11, 2023. The standby letter of credit will automatically renew for subsequent annual periods through December 2032. Remittance of funds from the letter of credit was not probable and the full amount was available as of June 30, 2023. The Company did not recognize a liability in the condensed consolidated balance sheet.

Purchase Commitment

In November 2021, the Company entered into a statement of work ("SOW") with FUJIFILM Diosynth Biotechnologies Texas, LLC for $3.8 million under its existing master services agreement for the manufacturing of VGL101. If the Company terminates the SOW before completion, it may be required to pay fees ranging from 0% to 100%. The amount due upon an early termination depends on the length of time prior to the commencement of specific stages of the SOW. The SOW is expected to incur costs over approximately 2 years. As of June 30, 2023, approximately 56% of work has been completed on this SOW.

Contingencies

From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of business. The Company accrues a liability for such matters when it is probable that future expenses will be incurred and can be reasonably estimated. As of June 30, 2023, the Company does not have any significant legal disputes that require a loss liability to be recorded.

401(k) Plan

The Company has a defined-contribution plan under Section 401(k) of the Internal Revenue Code of 1986 (the “401(k) Plan”). The 401(k) Plan covers all employees who meet defined minimum age and service requirements and allows participants to defer a portion of their annual compensation on a pre-tax basis. Company contributions are discretionary and contributions in the amount of $0.3 million were made during the six months ended June 30, 2023.

Indemnification Agreements

In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, contract research organizations, business partners, and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with members of its Board and certain of its executive officers that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. The Company has not incurred any material costs as a result of such indemnifications and is not currently aware of any indemnification claims.

Legal Proceedings

The Company is not currently party to any material legal proceedings. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company expenses as incurred the costs related to such legal proceedings.