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Employee Benefit Plan
 12 Months Ended
Dec. 31, 2021
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]  
Employee Benefit Plan
16.
Employee Benefit Plan

We maintain a 401(k) Plan, which qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating employees may defer a portion of their pretax earnings. We may, at our discretion, contribute for the benefit of eligible employees. The Company’s contribution to the 401(k) Plan was approximately $0.3 million, $0.2 million and $0.3 million for the years ended December 31, 2021, 2020 and 2019, respectively.