Note 10 - Fair Value Measurement of Warrant Liabilities and Derivative Liabilities (Details) - Fair Value, Inputs, Level 3 [Member]		9 Months Ended
Mar. 09, 2015	Sep. 30, 2015
Minimum [Member]
Fair Value Assumptions, Risk Free Interest Rate		0.35%
Fair Value Assumptions, Expected Term		1 year 25 days
Fair Value Assumptions, Expected Volatility Rate		84.40%
Maximum [Member]
Fair Value Assumptions, Risk Free Interest Rate		1.37%
Fair Value Assumptions, Expected Term		4 years 357 days
Fair Value Assumptions, Expected Dividend Rate
Fair Value Assumptions, Expected Volatility Rate		115.90%
Fair Value Assumptions, Risk Free Interest Rate	1.66%
Fair Value Assumptions, Expected Term	5 years
Fair Value Assumptions, Expected Dividend Rate	0.00%
Fair Value Assumptions, Expected Volatility Rate	115.70%

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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