Note 10 - Defined Contribution Plans

12 Months Ended

Dec. 31, 2018

Notes to Financial Statements

Compensation and Employee Benefit Plans [Text Block]

10. DEFINED CONTRIBUTION PLANS

We maintain a

401

(k) defined contribution plan covering all U.S. employees. Our matching contributions, net of forfeitures, under the plan, which are optional and based on the level of individual participant’s contributions, amounted to

$38,000

and

$37,000

in

2018

and

2017,

respectively.