Note 15 - Employee 401(k) Plan

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

Pension and Other Postretirement Benefits Disclosure [Text Block]

1

5

.  EMPLOYEE

401(k)

PLAN

The Company sponsors a

401(k)

retirement savings plan for all employees in the United States who meet certain eligibility requirements. Participants

may

contribute up to the amount allowable as a deduction for federal income tax purposes. The Company is not required to contribute and did

not

contribute to the plan for the years ended

December

31,

2016,

2015

and

2014.