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401(k) Plan
12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
401(k) Plan

12. 401(k) Plan

The Company sponsors a 401(k) defined contribution plan covering all employees and began employer contributions in 2018. The Company incurred expenses of $0.9 million, $0.5 million, and $0.4 million for the years ended December 31, 2021, 2020, and 2019 respectively.