Note 8 - Employee Benefit Plan

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Compensation and Employee Benefit Plans [Text Block]

8.

Employee Benefit Plan

The Psychemedics Corporation

401

(k) Savings and Retirement Plan (the

401

(k) Plan) is a qualified defined contribution plan in accordance with Section

401

(k) of the Internal Revenue Code. All employees over the age of

21

are eligible to make pre-tax contributions up to a specified percentage of their compensation. Under the

401

(k) Plan, the Company

may,

but is

not

obligated to, match a portion of the employees’ contributions up to a defined maximum. Matching contributions of

$246

thousand,

$246

thousand and

$242

thousand were made in the years ended

December 31, 2017,

2016

and

2015,

respectively.