Note 5 - Convertible Debt (PIK Notes) - Convertible Debt PIK Notes (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Less: Discount	$ (11,358,212)	$ (15,143,123)
Payment in Kind (PIK) Note [Member]
PIK Note Payable, Gross	40,901,803	38,196,966
Less: Discount	(11,358,212)	(15,143,123)
Less: Deferred Financing Cost	(8,125)	(13,750)
PIK Note Payable, Net	29,535,466	23,040,093
PIK Note Derivative Liability	1,142,174	2,176,552
Payment in Kind (PIK) Note [Member] | Series 2023 Notes [Member]
PIK Note Payable, Gross	15,513,290	14,071,008
Less: Discount	(1,598,654)	(1,721,898)
Less: Deferred Financing Cost	(2,992)	(5,064)
PIK Note Payable, Net	13,911,644	12,344,046
PIK Note Derivative Liability	68,041	142,909
Payment in Kind (PIK) Note [Member] | Series A Notes [Member]
PIK Note Payable, Gross	25,388,513	24,125,958
Less: Discount	(9,759,558)	(13,421,225)
Less: Deferred Financing Cost	(5,133)	(8,686)
PIK Note Payable, Net	15,623,822	10,696,047
PIK Note Derivative Liability	$ 1,074,133	$ 2,033,643