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Note 9 - Subsequent Events (Details) - Subsequent Event [Member] - Eric D. Hovde [Member]	Oct. 05, 2015 $ / shares shares
Note 9 - Subsequent Events (Details) [Line Items]
Treasury Stock, Shares, Acquired	196,635
Percentage of Outstanding Common Stock Owned by Third Party	9.50%
Treasury Stock Acquired, Average Cost Per Share | $ / shares	$ 34.50

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The percentage of outstanding common stock owned by a third party.

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Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 30



-Section 45



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Number of shares that have been repurchased during the period and are being held in treasury.

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



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-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 29, 30



-Article 5



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-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3

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