Note 6 - Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Note 6 - Loans (Details) [Line Items]
Loans and Leases Receivable, Deferred Income	$ 498	$ 498	$ 596
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	1,400	1,400	1,300
Mortgage Loans Serviced for Benefit of Others	372,700	372,700	375,100
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	114	195
Impaired Financing Receivable, Interest Income, Accrual Method	344	599
Impaired Financing Receivable, Average Recorded Investment	29,900	30,200
Federal Home Loan Bank Advances [Member]
Note 6 - Loans (Details) [Line Items]
Loans Pledged as Collateral	155,600	155,600	170,600
Lendable Collateral	74,100	74,100	79,100
Federal Reserve Services [Member]
Note 6 - Loans (Details) [Line Items]
Loans Pledged as Collateral	41,700	41,700	38,200
Lendable Collateral	$ 30,700	$ 30,700	$ 27,800

Collateral for loans that is lendable.

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- Definition

Mortgage loans which are serviced for the benefit of others.

+ References

No definition available.

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- References

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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- Definition

Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

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

-Publisher FASB

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-SubTopic 20

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

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- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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- Definition

Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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