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Note 10 - Employee 401(k) Plan
 12 Months Ended
Dec. 31, 2020
Notes to Financial Statements  
Retirement Benefits [Text Block]

Note 10 — 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 $1,569, $926, and $724 in 2020, 2019, and 2018, respectively.