Employee Benefit Plan

12 Months Ended

Dec. 31, 2016

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plan

13. Employee Benefit Plan

We sponsor a 401(k) Plan, which stipulates that eligible employees can elect to contribute to the 401(k) Plan, subject to certain limitations of eligible compensation. We match employee contributions up to a maximum of 3% of employee salary for the years ended December 31, 2016 and 2015 and $2,000 per employee for the year ended December 31, 2014. During the years ended December 31, 2016, 2015 and 2014, we recognized total expense of $819,000, $525,000 and $153,000, respectively.