Note 11 - Stock Option Plans (Details) - Black-Scholes Option Pricing Model Assumptions for Stock Option Grants (Combined Equity Incentive Plans [Member], USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Note 11 - Stock Option Plans (Details) - Black-Scholes Option Pricing Model Assumptions for Stock Option Grants [Line Items]
Expected volatility		92.00%
Minimum [Member]
Note 11 - Stock Option Plans (Details) - Black-Scholes Option Pricing Model Assumptions for Stock Option Grants [Line Items]
Expected volatility	92.00%
Risk free interest rate	0.70%	0.90%
Expected life (years)	5 years	5 years
Exercise price (in Dollars per share)	$ 0.61	$ 0.03
Maximum [Member]
Note 11 - Stock Option Plans (Details) - Black-Scholes Option Pricing Model Assumptions for Stock Option Grants [Line Items]
Expected volatility	95.00%
Risk free interest rate	3.00%	2.00%
Expected life (years)	10 years	10 years
Exercise price (in Dollars per share)	$ 2.50	$ 2.00

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.D.2)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iv)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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