Note 7 - Payroll Liabilities - Schedule of Payroll Liabilities (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Accrued bonuses	$ 203,779	$ 646,064
Accrued vacation	179,533	170,820
Accrued payroll	83,071	82,536
Total payroll liabilities	$ 466,383	$ 899,420