Note 1 - Business and Organization (Details Textual)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Convertible Notes Maturing on June 1, 2018 [Member]
Long-term Debt, Gross	$ 5,447,876		$ 5,447,876
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(2,484,103)	$ (1,823,252)	(5,796,831)	$ (3,818,338)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations			(2,799,096)	(1,340,139)
Working Capital	1,041,864		1,041,864
Assets, Current	1,873,107		1,873,107		$ 1,891,147
Retained Earnings (Accumulated Deficit)	(89,680,852)		(89,680,852)		(84,075,695)
Cash and Cash Equivalents, at Carrying Value	1,731,946	$ 560,171	1,731,946	$ 560,171	1,763,114	$ 154,460
Revenues			215,249
Letters of Credit Outstanding, Amount	280,000		280,000
Accounts Payable and Accrued Liabilities, Current	$ 290,076		$ 290,076		$ 324,983
Number of Wholly-Owned Subsidiaries	6		6