Note 4 - Liability Attributable to Warrants (Details) - Fair Value of Warrants Liability	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
2011 Private Placement [Member]
2011 Transaction
Estimated Volatility	110.00%	104.00%
Expected Term (Years)	1 year 69 days	1 year 251 days
Estimated Exercise Factor	3.5	3.5
Risk-Free Interest Rate	0.37%	0.56%
2014 Private Placement [Member]
2011 Transaction
Estimated Volatility		114.00%
Expected Term (Years)		4 years 29 days
Estimated Exercise Factor		3.5
Risk-Free Interest Rate		1.35%
ipCapital Group Inc [Member]
2011 Transaction
Estimated Volatility	111.00%	105.00%
Expected Term (Years)	1 year 109 days	1 year 295 days
Estimated Exercise Factor	4.0	4.0
Risk-Free Interest Rate	0.43%	0.61%