Note 8 - Liability Attributable to Warrants (Details) - Reconciliation of Warrants Liability Measured at Fair Value (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 30, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants liability – December 31, 2013 fair value		$ 979,800
Aggregate fair value of the warrants liability associated with the 2014 Transaction warrants at issuance	1,356,000
Warrants liability – December 31, 2014 fair value	647,300	979,800
Other Income [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of warrant liability	(1,624,300)
General and Administrative Expense [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of warrant liability	$ (64,200)