Note 6 - Loans (Details) - Troubled Debt Restructurings With Subsequent Default $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2014 USD ($)	Sep. 30, 2014 USD ($)
Residential real estate:
Number of contracts	1	2
Recorded investment	$ 53	$ 139
Residential Portfolio Segment [Member] \| Individual Tax Identification Number Loan [Member] \| Real Estate Loan [Member]
Residential real estate:
Number of contracts	1	2
Recorded investment	$ 53	$ 139

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524

Name:	us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration