Note 13 - Defined Contribution Retirement Plan

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

Pension and Other Postretirement Benefits Disclosure [Text Block]

13.

 Defined Contribution Retirement Plan

The Company has established a

401(k)

 defined contribution plan (the

401(k)

Plan) that covers all employees who qualify under the terms of the plan. Eligible employees

may

elect to contribute to the

401(k)

Plan up to

90%

of their compensation, limited by the IRS-imposed maximum. The Company provides a safe harbor match with a maximum amount of

4%

of the participant’s compensation. The Company made matching contributions under the

401(k)

Plan of

$28.0

thousand and

$10.0

thousand for the years ended

December

 

31,

2016

and

2015,

respectively.