Note 6 - Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Accrued management salaries	$ 710,643	$ 532,615
Accrued directors’ fees	238,669	182,620
Other accrued expenses	48,750	18,476
Total accrued expenses	$ 998,062	$ 733,711