Note 7 - Payroll Liabilities - Schedule of Payroll Liabilities (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Accrued bonuses	$ 498,359	$ 646,064
Accrued vacation	162,798	170,820
Accrued payroll	91,690	82,536
Total payroll liabilities	$ 752,847	$ 899,420