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Note 6 - Loans and Allowance for Loan Losses - Analysis of Non-accruing Loans (Details) - USD ($) | Mar. 31, 2016 | Dec. 31, 2015
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Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] |  |
Total loans | $ 334,000 | $ 339,000
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] |  |
Total loans | $ 1,178,000 | 968,000
Real Estate [Member] | Secured by Multi-family Residential Properties [Member] |  |
Total loans |  | 0
Real Estate [Member] | Secured by Non-farm, Non-residential Properties [Member] |  |
Total loans | $ 205,000 | 213,000
Commercial and Industrial Loans [Member] |  |
Total loans | 46,000 | 47,000
Consumer Portfolio Segment [Member] |  |
Total loans | 1,514,000 | 1,535,000
Total loans | $ 3,277,000 | $ 3,102,000

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