Employee Benefit Plan
12 Months Ended
Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]  
Employee Benefit Plan

11. Employee Benefit Plan

The Company has a defined contribution savings plan under section 401(k) of the IRC. The plan covers substantially all employees. The Company matches employee contributions made to the plan according to a specified formula. The Company’s matching contributions totaled approximately $0.1 million   for each the years ended 2016, 2015 and 2014.