Note 5 - Loans and Allowance for Loan Losses (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Note 5 - Loans and Allowance for Loan Losses (Details) [Line Items]
Bank Overdrafts	$ 142,000us-gaap_BankOverdrafts	$ 138,000us-gaap_BankOverdrafts
Financing Receivable, Modifications, Recorded Investment	5,587,000	8,561,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	909,000	551,000
Loans and Leases Receivable, Impaired, Commitment to Lend	1,729,000	1,603,000
Residential Portfolio Segment [Member] \| Maximum [Member]
Note 5 - Loans and Allowance for Loan Losses (Details) [Line Items]
Loan-to-value Ratio	80.00%
Performing Financing Receivable [Member]
Note 5 - Loans and Allowance for Loan Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,897,000	1,960,000
Nonperforming Financing Receivable [Member]
Note 5 - Loans and Allowance for Loan Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 3,690,000	$ 6,601,000

The ratio of the amount of mortgage to the underlying collateral.

No definition available.

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- Definition

Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1243-112600

+ Details

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

+ Details

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- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

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