Annual report pursuant to Section 13 and 15(d)

Note 11 - Employee Benefit Plan (Details Textual)

v3.20.4
Note 11 - Employee Benefit Plan (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 100.00%    
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 6.00%    
Deferred Compensation Arrangement with Individual, Requisite Service Period (Year) 5 years    
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage 20.00%    
Defined Contribution Plan, Cost $ 2.3 $ 2.0 $ 2.0