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Note 4 - Loans and Allowance for Loan Losses - Net (Charge-Offs)/Recoveries, Excluding Loans Acquired, Segregated by Class of Loans (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Loans Receivable | $ (14,504) | $ (5,963)
Consumer Portfolio Segment [Member] |  |
Loans Receivable | (3,747) | (3,351)
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member] |  |
Loans Receivable | (2,288) | (2,217)
Consumer Portfolio Segment [Member] | Other Loans [Member] |  |
Loans Receivable | (1,459) | (1,134)
Commercial Real Estate Portfolio Segment [Member] |  |
Loans Receivable | (7,166) | (1,377)
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |
Loans Receivable | (16) | (44)
Commercial Real Estate Portfolio Segment [Member] | Single Family Residential Loans [Member] |  |
Loans Receivable | (706) | (407)
Commercial Real Estate Portfolio Segment [Member] | Other Commercial Loans [Member] |  |
Loans Receivable | (6,444) | (926)
Commercial Portfolio Segment [Member] |  |
Loans Receivable | (3,591) | (1,235)
Commercial Portfolio Segment [Member] | Commercial Loans [Member] |  |
Loans Receivable | (1,255) | (1,202)
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |
Loans Receivable | $ (2,336) | $ (33)

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