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Retirement Plan
12 Months Ended
Dec. 31, 2019
Compensation And Retirement Disclosure [Abstract]  
Retirement Plan

16.

Retirement Plan

We maintain a salary deferral 401(k) plan (“401(k) Plan”), covering employees who have met certain eligibility requirements. Employees may defer up to 100% of their compensation to the 401(k) Plan, subject to federal limits. We did not make any discretionary contributions during the years ended December 31, 2019, 2018 and 2017.