Note 4 - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Payment in Kind (PIK) Note [Member]
Convertible Debt, Fair Value Disclosures	$ 24,653,831		$ 24,653,831		$ 21,789,259
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			38,676,225	32,037,587
Unrecognized Tax Benefits	0		$ 0
Allowance for Doubtful Accounts Receivable	0	$ 0	0	$ 0
Depreciation	$ 340,165	$ 326,931	$ 1,014,585	$ 979,836
Weighted Average Number of Shares Outstanding, Basic and Diluted	108,482,042	96,482,321	101,231,559	95,795,668
Outstanding Options and Warrants to Purchase Common Stock Not Included in Diluted Computation	25,314,940	18,900,062	25,314,940	18,900,062