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12. Retirement Plan
12 Months Ended
Dec. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
12. Retirement Plan

The Company sponsors a participant contributory retirement 401(k) plan, which is available to all employees. The Company’s contribution to the plan is either a percentage of the participant’s contribution (50% of the participant’s contribution up to a maximum of 6%) or a discretionary amount. For the years ended December 31, 2019 and 2018, total contributions made by the Company were $164 and $144, respectively.