Employee Benefit Plans

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans [Abstract]

Employee Benefit Plans

13. Employee Benefit Plans

We participate in a number of individual defined contribution pension plans for our employees in Sweden. We contribute five percent (5%) of the employee’s annual salary to these pension plans. For the Swedish management we contribute up to fifteen percent (15%) of the employee’s annual salary. Contributions relating to these defined contribution plans for the years ended December 31, 2017, 2016 and 2015 were $368,000, $398,000 and $306,000, respectively. We match U.S. employee contributions to a 401(k) retirement plan up to a maximum of six percent (6%) of an employee’s annual salary. Contributions relating to the matching 401(k) contributions for the years ended December 31, 2017, 2016 and 2015 were $6,000, $33,000 and $89,000, respectively. In Taiwan, we contribute six percent (6%) of the employee’s annual salary to a pension fund which agrees with Taiwan’s Labor Pension Act. Contributions relating to the Taiwanese pension fund for the years ended December 31, 2017, 2016 and 2015 were $4,000, $10,000 and $10,000, respectively.