Employee Savings Plan

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Employee Savings Plan

Note 6 — Employee Savings Plan

In December 1989, the Board of Directors approved a 401(k) savings plan (the “401(k) Plan”) for our employees that became effective in 1990. Eligible employees may elect to make contributions under the terms of the 401(k) Plan; however, contributions by us are made at the discretion of management. We made a contribution of $79,000 to the 401(k) plan in 2019, and $72,000 and $66,000 in 2018 and 2017, respectively.