Note 17 - Selected Quarterly Financial Data (Unaudited) (Details) - Selected Quarterly Financial Data (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
2013
Net loss	$ (8,251,358)	$ (26,568,382)	$ (23,222,678)
Non-cash deemed dividend from beneficial conversion feature on convertible preferred stock	4,601,410
Quarter1 [Member]
2013
Total revenue	125,000
Net loss	(651,000)	(6,186,000)
Non-cash deemed dividend from beneficial conversion feature on convertible preferred stock	(4,601,000)
Basic and diluted net loss per share (in Dollars per share)	$ (480)	$ (190)
Quarter2 [Member]
2013
Total revenue	125,000
Net loss	421,000	(6,104,000)
Basic and diluted net loss per share (in Dollars per share)	$ 30	$ (180)
Quarter3 [Member]
2013
Total revenue	125,000
Net loss	(4,072,000)	(6,018,000)
Basic and diluted net loss per share (in Dollars per share)	$ (300)	$ (180)
Quarter4 [Member]
2013
Total revenue	125,000
Net loss	$ (3,949,000)	$ (8,260,000)
Basic and diluted net loss per share (in Dollars per share)	$ (290)	$ (230)