Note 7 - Payroll Liabilities - Schedule of Payroll Liabilities (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Accrued bonuses	$ 689,635	$ 646,064
Accrued vacation	171,112	170,820
Accrued payroll	102,918	82,536
Total payroll liabilities	$ 963,665	$ 899,420