Note 1 - Business and Organization (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 14, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ (2,517,794)	$ (1,668,335)	$ (4,577,870)	$ (3,312,728)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations				(2,048,628)	(1,693,661)
Working Capital		(3,175,349)		(3,175,349)
Assets, Current		561,346		561,346		$ 2,016,682
Retained Earnings (Accumulated Deficit)		(96,256,129)		(96,256,129)		(91,915,426)
Cash and Cash Equivalents, at Carrying Value		433,539	$ 889,029	433,539	889,029	$ 1,910,153	$ 1,763,114
Cash and Cash Equivalents, Period Increase (Decrease)				(1,476,614)	$ (874,085)
Long-term Debt, Gross		5,805,668		5,805,668
Convertible Debt		4,830,097		4,830,097
Accounts Payable and Accrued Liabilities		$ 344,438		$ 344,438
Subsequent Event [Member]
Proceeds from Issuance of Private Placement	$ 800,000