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Note 3 - Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($)
Real Estate Portfolio Segment [Member] | Residential [Member] |  |  |  |
Number of contracts | 1 |  | 1 | 1
Pre-modification | $ 91 |  | $ 91 | $ 881
Post-modification | $ 91 |  | $ 91 | $ 897
Number of contracts | 1 |  | 1 | 1
Pre-modification | $ 91 |  | $ 91 | $ 881
Post-modification | $ 91 |  | $ 91 | $ 897

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