Note 4 - Liability Attributable to Warrants (Tables)

3 Months Ended

Mar. 31, 2014

Note 4 - Liability Attributable to Warrants (Tables) [Line Items]

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

	Estimated Volatility			Annualized Forfeiture  Rate		Expected Term (Years)		Estimated Exercise  Factor		Risk-Free Interest Rate			Dividends
2011 Transaction
March 31, 2014		91	%		—		2.42		3.5		0.53	%		—
December 31, 2013		102	%		—		2.67		3.5		0.51	%		—
2014 Transaction
March 31, 2014		140	%		—		4.77		3.5		1.43	%		—
December 31, 2013		—			—		—		—		—			—
ipCapital
March 31, 2014		93	%		—		3.54		4.0		0.56	%		—
December 31, 2013		108	%		—		3.79		4.0		0.53	%		—

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Warrants liability – December 31, 2013 fair value	$	979,800
Change in fair value of warrant liability recorded in other income		(1,133,700	)
Change in fair value of warrant liability recorded in general and administrative expense		(49,800	)
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

Warrant [Member]

Note 4 - Liability Attributable to Warrants (Tables) [Line Items]

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

For the Three-Month Period Ended March 31, 2014
	Beginning Outstanding		Issued		Exercised		Ending Outstanding
2011 Transaction		11,302,500		—		1,000,000		10,302,500
2014 Transaction		—		5,650,001		—		5,650,001
Exercise Agreement		4,500,000		—		—		4,500,000
ipCapital		400,000		—		—		400,000
Consultant Warrant (1)		312,500		—		—		312,500
Offer to Exercise		152,500		—		—		152,500
Total		16,667,500		5,650,001		1,000,000		21,317,501

For the Three-Month Period Ended March 31, 2013
	Beginning Outstanding		Issued		Exercised		Ending Outstanding
2011 Transaction		23,075,000		—		462,500		22,612,500
ipCapital		400,000		—		—		400,000
Total		23,475,000		—		462,500		23,012,500