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Note 13 - Employee Benefits (Details) - Stock Option Activity (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Stock Option Activity [Abstract]
Outstanding, January 1	79,693	88,774
Outstanding, January 1 (in Dollars per share)	$ 27.25	$ 26.81
Exercised	(21,112)
Exercised (in Dollars per share)	$ 24.11
Forfeited		(9,081)
Forfeited (in Dollars per share)		$ 22.94
Outstanding, December 31	58,581	79,693
Outstanding, December 31 (in Dollars per share)	$ 28.38	$ 27.25
Exercisable, December 31	58,581	79,693
Exercisable, December 31 (in Dollars per share)	$ 28.38	$ 27.25

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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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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Number of share options (or share units) exercised during the current period.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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