10. Profit Sharing Plan	12 Months Ended
Dec. 31, 2017
Retirement Benefits [Abstract]
Profit Sharing Plan	The Company has a profit sharing plan that covers the U.S. employees. Contributions to the plan are at the option of and determined by the Board of Directors and are limited to the maximum amount deductible by the Company for Federal income tax purposes. For the years ended December 31, 2017 and 2016, there were no contributions to the plan. The Company also offers U.S. employees a 401(k) savings plan administered by an investment services company. Employees are eligible to participate in the plan after completing six months of service with the Company. The Company matches contributions up to 4% of the employee's eligible earnings. Total Company contributions to the 401(k) plan for the years ended December 31, 2017 and 2016 was approximately $68,000 and $66,000, respectively.

10. Profit Sharing Plan

12 Months Ended

Dec. 31, 2017

The Company has a profit sharing plan that covers the U.S. employees. Contributions to the plan are at the option of and determined by the Board of Directors and are limited to the maximum amount deductible by the Company for Federal income tax purposes. For the years ended December 31, 2017 and 2016, there were no contributions to the plan.

The Company also offers U.S. employees a 401(k) savings plan administered by an investment services company. Employees are eligible to participate in the plan after completing six months of service with the Company. The Company matches contributions up to 4% of the employee's eligible earnings. Total Company contributions to the 401(k) plan for the years ended December 31, 2017 and 2016 was approximately $68,000 and $66,000, respectively.