Note 1 - Summary of Significant Accounting Policies (Details) - Stock Appreciation Rights Activity (Stock Appreciation Rights (SARs) [Member], USD $)	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Stock Appreciation Rights (SARs) [Member]
Note 1 - Summary of Significant Accounting Policies (Details) - Stock Appreciation Rights Activity [Line Items]
Outstanding	226,406
Outstanding, weighted average exercise price	$ 11.52
Granted	68,691	59,716
Granted	$ 14.72
Exercised	(3,104)
Exercised	$ 11.24
Outstanding	291,993
Outstanding, weighted average exercise price	$ 12.27

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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

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

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- Definition

Number of non-option equity instruments exercised by participants.

+ References

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- Definition

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

+ References

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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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