Note 8 - Employee 401(k) Plan

12 Months Ended

Dec. 31, 2015

Notes to Financial Statements

Pension and Other Postretirement Benefits Disclosure [Text Block]

Note 8 — Employee 401(k) Plan

In January 1991, the Company adopted an employee retirement plan (“401(k) Plan”) under Section 401(k) of the Internal Revenue Code covering all employees. Employee contributions may be made to the 401(k) Plan up to limits established by the Internal Revenue Service. Company matching contributions may be made at the discretion of the Board of Directors. The Company made matching contributions of $366, $361, and $313, in 2015, 2014, and 2013, respectively.