We maintain a 401(k) defined contribution plan (the “401(k) Plan”), which covers eligible employees as defined in the 401(k) Plan. Participants are allowed to make contributions of up to 60% of their annual salary but may not exceed the annual maximum contribution limitations established by the Internal Revenue Service. The company match is currently 50% on the first 5% of the amounts contributed by each participant. During each of the years ended December 31, 2019 and 2018, the company contributed and expensed $1.9 million into the 401(k) Plan.