Note 3 - Securities (Details) (USD $)	6 Months Ended
Jun. 30, 2014	Dec. 31, 2013
Note 3 - Securities (Details) [Line Items]
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities	$ 21,550,000
Available-for-sale Securities, Amortized Cost Basis	211,794,000	217,708,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	96
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	54,502,000	102,806,000
Federal Home Loan Bank Stock	3,690,000	4,340,000
Temporarily Impaired [Member]
Note 3 - Securities (Details) [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	54,500,000
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Securities (Details) [Line Items]
Available-for-sale Securities, Amortized Cost Basis	124,660,000	123,729,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	16,213,000	24,338,000
US States and Political Subdivisions Debt Securities [Member] \| Standard & Poor's, A Rating [Member]
Note 3 - Securities (Details) [Line Items]
Percentage of Corporations Obligations of States and Political Subdivisions	97.00%
Net Unrealized Loss Position [Member] \| Standard & Poor's, A Rating [Member]
Note 3 - Securities (Details) [Line Items]
Percentage of Corporations Obligations of States and Political Subdivisions	96.00%
Net Unrealized Loss Position [Member] \| Not A Rating or Better [Member]
Note 3 - Securities (Details) [Line Items]
Percentage of Corporations Obligations of States and Political Subdivisions	4.00%
Securities Pledged as Collateral [Member]
Note 3 - Securities (Details) [Line Items]
Available-for-sale Securities, Amortized Cost Basis	105,190,000	149,220,000
Available-for-sale Securities Pledged as Collateral	108,010,000	149,830,000
Investment in Federal Home Loan Bank Stock [Member]
Note 3 - Securities (Details) [Line Items]
Other than Temporary Impairment Losses, Investments	$ 0

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Percentage of Corporations Obligations of States and Political Subdivisions

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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- Definition

This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ 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 (a)(1)

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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)

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

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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

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- Definition

Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 325

-Section 45

-Paragraph 1

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 35

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e25351-111560

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- Definition

The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

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