Note 5 - Stockholders' Equity - Stock Options, Valuation Assumptions (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Non Plan [Member]
Life in years (Year)	7 years	7 years
Non Plan [Member] \| Minimum [Member]
Risk free interest rate	1.91%	1.83%
Expected volatility	623.00%	794.00%
Non Plan [Member] \| Maximum [Member]
Risk free interest rate	2.49%	2.33%
Expected volatility	738.00%	821.00%
The 2007 Equity Incentive Plan [Member]
Life in years (Year)	5 years
The 2007 Equity Incentive Plan [Member] \| Minimum [Member]
Risk free interest rate	1.36%	1.60%
Expected volatility	315.00%	322.00%
Life in years (Year)		3 years
The 2007 Equity Incentive Plan [Member] \| Maximum [Member]
Risk free interest rate	2.14%	2.38%
Expected volatility	794.00%	807.00%
Life in years (Year)		7 years

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.

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- Definition

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

+ References

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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 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: 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

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