Note 2 - Going Concern (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Net Income (Loss) Attributable to Parent, Total	$ (3,309,866)	$ (2,184,510)	$ (9,326,825)	$ (6,129,553)
Net Cash Provided by (Used in) Operating Activities, Total			(6,517,985)	$ (4,911,268)
Cash and Cash Equivalents, at Carrying Value, Ending Balance	12,935,587		12,935,587		$ 7,217,469
Working Capital	$ 10,400,000		$ 10,400,000