Note 1 - Summary of Significant Interim Accounting Policies (Details) - Stock Appreciation Rights Activity (Stock Appreciation Rights (SARs) [Member], USD $)	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Stock Appreciation Rights (SARs) [Member]
Note 1 - Summary of Significant Interim Accounting Policies (Details) - Stock Appreciation Rights Activity [Line Items]
Outstanding	261,012		226,406
Outstanding weighted average exercise price	$ 12.33		$ 11.52
Granted	68,691	59,716
Granted	$ 14.72
Exercised	(34,085)
Exercised	$ 11.70

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Represents the weighted average exercise price of non-option equity instruments outstanding.

+ References

No definition available.

+ Details

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- Definition

Represents the weighted average exercise price of non-option equity instruments exercised in the reporting period.

+ References

No definition available.

+ Details

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- Definition

Represents the weighted average exercise price of non-option equity instruments granted in the reporting period.

+ References

No definition available.

+ Details

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- Definition

Number of non-option equity instruments exercised by participants.

+ References

+ Details

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

+ Details

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ 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)(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 50

-Paragraph 2

-Subparagraph (c)(1)(ii)

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

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