Related Party Transactions

12 Months Ended

Dec. 31, 2021

Related Party Transactions [Abstract]

Related Party Transactions

7. Related Party Transactions

We paid consulting expenses of $0.2 million, $0.3 million and $0.2 million for the years ended December 31, 2021, 2020 and 2019, respectively, for consulting services with certain related parties, including a family member of management and a board member. At both December 31, 2021 and 2020, there was less than $0.1 million included in accounts payable and accrued expenses due to related parties.