Note 10 - Fair Value Measurement (Details) - Change in Level 3 Financial Liabilities Fair Value (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Derivatives:
Balance, Beginning of year	$ 9,070,183	$ 8,574,921
Net Realized Gains/(Losses)	0	0
Net Unrealized (gains)/losses relating to instruments still held at the reporting date	(4,410,241)	95,121
Net purchases, issuances and settlements	628,086	400,141
Net transfers in and/or out of Level 3	0	0
Balance, end of period	5,288,028	9,070,183
Conversion Feature Liability [Member]
Derivatives:
Balance, Beginning of year	3,126,206	2,287,323
Net Realized Gains/(Losses)	0	0
Net Unrealized (gains)/losses relating to instruments still held at the reporting date	(1,592,844)	838,883
Net purchases, issuances and settlements	0	0
Net transfers in and/or out of Level 3	0	0
Balance, end of period	1,533,362	3,126,206
Warrant Liability [Member]
Derivatives:
Balance, Beginning of year	5,943,977	6,287,598
Net Realized Gains/(Losses)	0	0
Net Unrealized (gains)/losses relating to instruments still held at the reporting date	(2,817,397)	(743,762)
Net purchases, issuances and settlements	628,086	400,141
Net transfers in and/or out of Level 3	0	0
Balance, end of period	$ 3,754,666	$ 5,943,977