Note 6 - Payroll Liabilities - Schedule of Payroll Liabilities (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Accrued bonuses	$ 646,433	$ 697,995
Accrued vacation	162,619	160,740
Accrued payroll	82,706	76,335
Total payroll liabilities	$ 891,758	$ 935,070