Note 4 - Liability Attributable to Warrants (Details) - Reconciliation of Warrants Liability Measured at Fair Value (Warrant Liabilities [Member], USD $)	3 Months Ended
	Mar. 31, 2015
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants liability	$ 647,300
Change in fair value of warrant liability recorded in other income	55,100
Reclassification of 2014 PIPE Warrant to Equity	(407,300)
Warrants liability	294,700
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	$ (400)