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Note 13 - 401(k) Plan
12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Pension and Other Postretirement Benefits Disclosure [Text Block]
1
3
.
401
(k) Plan
 
The Company has a qualified retirement plan under section 
401
(k) of the Internal Revenue Code (“IRC”) under which participants
may
contribute up to
90%
of their eligible compensation, subject to maximum deferral limits specified by the IRC. The Company
may
make a discretionary matching contribution to the
401
(k) plan, and
may
make a discretionary employer contribution to each eligible employee each year. Eligible employees vest in the Company’s contributions over a graded
four
year schedule. To date, the Company has made
no
contributions to the
401
(k) plan.