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Note 3 - Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Note 3 - Earnings Per Share (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	55,939	58,581	55,939	58,581	58,581	79,693
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share)			$ 17.55	$ 17.55
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share)			$ 40.24	$ 40.24
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	7,888	6,930	6,688	7,981
Equity Option [Member]
Note 3 - Earnings Per Share (Details) [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	27,375	29,633	28,282	49,394

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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