Related-party Transactions
12 Months Ended
Dec. 31, 2021
Related Party Transactions [Abstract]  
Related-party Transactions Related-party Transactions
Consulting Agreements

Effective April 1, 2019, the Company entered into a two-year consulting agreement with Thomas Lynch (the 2019 Consulting Agreement). The 2019 Consulting Agreement provided for (i) annual compensation of $0.4 million, including $0.1 million related to Mr. Lynch’s board services, (ii) an annual grant of 150,000 restricted stock units (RSUs), which vested quarterly over one year from the grant date, and (iii) an annual bonus of up to 100% of Mr. Lynch’s annual consulting fees based upon the achievement of the Company’s corporate goals and objectives, as determined by and subject to approval of the board of directors. The 2019 Consulting Agreement terminated on April 1, 2020 upon the passing of Mr. Lynch.
Consulting fees incurred under the 2019 Consulting Agreement were zero and $0.1 million for the years ended December 31, 2021 and 2020, respectively. As of December 31, 2021 and 2020, excluding board fees, there was no accrued compensation owed to Mr. Lynch.