Note 4 - Liability Attributable to Warrants (Details) - Reconciliation of Warrants Liability Measured at Fair Value (USD $)	3 Months Ended
	Mar. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants liability – December 31, 2013 fair value	$ 979,800
Change in fair value of warrant liability recorded in other income	(1,133,700)
Aggregate fair value of the warrants liability associated with the 2014 transaction warrants at issuance	1,356,000
Warrants liability – March 31, 2014 fair value	1,152,300
General and Administrative Expense [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of warrant liability recorded in general and administrative expense	$ (49,800)