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Note 6 - Investment Securities Available For Sale (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2014 Available-for-sale Securities [Member] | Sep. 30, 2013 Available-for-sale Securities [Member] | Sep. 30, 2014 Three Months Ending [Member] Available-for-sale Securities [Member] | Sep. 30, 2013 Three Months Ending [Member] Available-for-sale Securities [Member]
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Note 6 - Investment Securities Available For Sale (Details) [Line Items] |  |  |  |  |  |
Available-for-sale Securities Pledged as Collateral (in Dollars) | $ 62.9 | $ 66.3 |  |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 75 |  | 0 | 0 | 0 | 0
Percentage of Portfolio | 97.00% |  |  |  |  |

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- Definition Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition The fair value of available-for-sale securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5086-111524 + Details
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