Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers (USD $)	Dec. 31, 2014	Dec. 31, 2013
Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers [Line Items]
Options for Common shares	1,262,763	712,763
Exercise price per share (in Dollars per share)	$ 1.57	$ 1.33
Options exercisable	485,263
February 2005 [Member] \| Consultants and Service Providers [Member]
Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers [Line Items]
Options for Common shares	20,000
Exercise price per share (in Dollars per share)	$ 1.19
Options exercisable	20,000
March 2006 [Member] \| Consultants and Service Providers [Member]
Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers [Line Items]
Options for Common shares	100,000
Exercise price per share (in Dollars per share)	$ 1.16
Options exercisable	100,000
December 2010 [Member] \| Consultants and Service Providers [Member]
Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers [Line Items]
Options for Common shares	21,500
Exercise price per share (in Dollars per share)	$ 1.51
Options exercisable	21,500
Consultants and Service Providers [Member]
Note 8 - Shareholders' Equity (Details) - Outstanding Warrants and Options to Consultants and Service Providers [Line Items]
Options for Common shares	141,500
Options exercisable	141,500

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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 (c)(1)(iii)

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Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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