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Employee Benefits
12 Months Ended
Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract]  
Employee Benefits

(19)

Employee Benefits

The Company has a defined contribution 401(k) plan for eligible employees. Employees are eligible to participate in the plan beginning on their date of hire. Under the terms of the plan, employees may make voluntary contributions as a percentage of compensation. The Company has not made any matching contributions since the adoption of the 401(k) plan.