Employee Benefit Plans

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Employee Benefit Plans

Employee Benefit Plans

For US employees, the Company maintains a defined contribution 401(k) retirement plan. As of September 30, 2018, approximately $139 is recorded in accrued liabilities related to the Company match applicable to 2018 employee contributions. The Company's contributions are made in cash.

For Norway and UK employees, the Company maintains defined contribution pension plans which meet statutory requirements of those jurisdictions. The Company incurred costs of $6 and $6 for the three months ended September 30, 2018 and 2017 and $75 and $50 related to the pension plans for the nine months ended September 30, 2018 and 2017, respectively.