Note 9 - Stock-based Awards: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - $ / shares	3 Months Ended
Mar. 31, 2018	Dec. 31, 2017
Details
Fair Value Assumptions, Expected Volatility Rate	121.60%	128.20%
stock price on date of grant	$ 0.17	$ 0.33
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	3 years	3 years
Fair Value Assumptions, Risk Free Interest Rate	2.33%	1.68%
Sharebased Compensation Arrangement By Sharebased Payment Award FairValue Assumptions Expected Forfeiture Rate	0.00%	0.00%

Sharebased Compensation Arrangement By Sharebased Payment Award FairValue Assumptions Expected Forfeiture Rate

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- Definition

stock price on date of grant

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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

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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=96867065&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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