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Note 3 - Loans - Modified in a Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 USD ($) | Mar. 31, 2016 USD ($)
Number of contracts |  | 1
Pre-modification |  | $ 91
Post-modification |  | $ 91
Real Estate Portfolio Segment [Member] | Residential [Member] |  |
Number of contracts |  | 1
Pre-modification |  | $ 91
Post-modification |  | $ 91

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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=84173941&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=84173941&loc=SL6953676-111524 + Details
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