Note 17 - Employee Benefit Plans

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Retirement Benefits [Text Block]

( 17 ) Employee Benefit Plans

The Company’s U.S. employees are eligible to participate in a retirement and savings plan that qualifies under Section

401

(k) of the Internal Revenue Code. Participating employees

may

contribute up to

75%

of their pretax salary, but

not

more than statutory limits. The Company made matching contributions of

$25,000

and

$26,000

during the years ended

December 31, 2019

and

2018,

respectively, but did

not

make a contribution in the year ending

December 31, 2017.