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Note 3 - Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($)
Real Estate Portfolio Segment [Member] | Residential [Member] |  |
Number of contracts | 1 | 1
Pre-modification | $ 91 | $ 881
Post-modification | $ 91 | $ 897
Number of contracts | 1 | 1
Pre-modification | $ 91 | $ 881
Post-modification | $ 91 | $ 897

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- Definition 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=66008989&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables 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=66008989&loc=SL6953676-111524 + Details
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