Note 6 - Loans (Details) - Troubled Debt Restructurings $ in Thousands		3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Financing Receivable, Modifications [Line Items]
Number of contract	121	3	2	7	3
Pre-modification outstanding recorded investment		$ 263	$ 150	$ 1,345	$ 850
Post-modification outstanding recorded investment		$ 209	$ 154	$ 1,308	$ 854
Residential Portfolio Segment [Member] \| Real Estate Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of contract		3	2	6	2
Pre-modification outstanding recorded investment		$ 263	$ 150	$ 522	$ 150
Post-modification outstanding recorded investment		$ 209	$ 154	$ 485	$ 154
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of contract				1	1
Pre-modification outstanding recorded investment				$ 823	$ 700
Post-modification outstanding recorded investment				$ 823	$ 700

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Number of 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 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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