Employee Benefit Plans

3 Months Ended

Mar. 31, 2018

Postemployment Benefits [Abstract]

Compensation and Employee Benefit Plans [Text Block]

10. Employee Benefit Plans

The Company has an employee benefit plan for its United States-based employees under Section 401(k) of the Internal Revenue Code. The Plan allows all eligible employees to make contributions up to a specified percentage of their compensation. Under the Plan, the Company may, but is not obligated to, match a portion of the employee contribution up to a defined maximum. The Company made no matching contribution for the three months ended March 31, 2018 and 2017.