Employee Benefit Plans

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Employee Benefit Plans

Employee Benefit Plans

For US employees, the Company maintains a defined contribution 401(k) retirement plan. As of June 30, 2019, approximately $117 is recorded in accrued liabilities related to the Company match. The Company's contributions are made in cash.

For Norway and UK employees, the Company maintains defined contribution pension plans which meet the statutory requirements of those jurisdictions. The Company incurred costs related to the pension plans of $5 and $7 for the three months ended June 30, 2019 and 2018, respectively, and $11 and $69 for the six months ended June 30, 2019 and 2018, respectively.