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Note 3 - Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | --- | ---
Accruing loans past due | $ 6,218 | $ 4,469 |
Nonaccrual loans | 8,176 | 12,350 |
Current loans | 761,172 | 737,464 |
Loans | 775,566 | 754,283 | $ 764,209
Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 6,218 | 4,469 |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Commercial and Agricultural Portfolio Segment [Member] | Commercial [Member] |  |  |
Accruing loans past due | 615 | 420 |
Nonaccrual loans | 608 | 635 |
Current loans | 43,660 | 45,970 |
Loans | 44,883 | 47,025 | 47,934
Commercial and Agricultural Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 615 | 420 |
Commercial and Agricultural Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Commercial and Agricultural Portfolio Segment [Member] | Agricultural [Member] |  |  |
Accruing loans past due | 202 | 33 |
Nonaccrual loans | 348 | 209 |
Current loans | 21,260 | 16,838 |
Loans | 21,810 | 17,080 | 24,307
Commercial and Agricultural Portfolio Segment [Member] | Agricultural [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 202 | 33 |
Commercial and Agricultural Portfolio Segment [Member] | Agricultural [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Commercial [Member] |  |  |
Accruing loans past due | 1,233 | 492 |
Nonaccrual loans | 3,079 | 6,360 |
Current loans | 351,489 | 342,238 |
Loans | 355,801 | 349,090 | 345,181
Real Estate Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 1,233 | 492 |
Real Estate Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Commercial Construction [Member] |  |  |
Accruing loans past due | 792 | 54 |
Nonaccrual loans | 102 | 190 |
Current loans | 34,257 | 30,114 |
Loans | 35,151 | 30,358 | 32,292
Real Estate Portfolio Segment [Member] | Commercial Construction [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 792 | 54 |
Real Estate Portfolio Segment [Member] | Commercial Construction [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Residential Construction [Member] |  |  |
Accruing loans past due |  |  |
Nonaccrual loans | 199 |  |
Current loans | 9,031 | 11,830 |
Loans | 9,230 | 11,830 | 9,141
Real Estate Portfolio Segment [Member] | Residential Construction [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Residential Construction [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Residential [Member] |  |  |
Accruing loans past due | 2,984 | 3,179 |
Nonaccrual loans | 3,013 | 3,944 |
Current loans | 194,575 | 188,457 |
Loans | 200,572 | 195,580 | 196,140
Real Estate Portfolio Segment [Member] | Residential [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 2,984 | 3,179 |
Real Estate Portfolio Segment [Member] | Residential [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Real Estate Portfolio Segment [Member] | Farmland [Member] |  |  |
Accruing loans past due | 187 | 95 |
Nonaccrual loans | 678 | 800 |
Current loans | 69,329 | 65,982 |
Loans | 70,194 | 66,877 | 70,137
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 187 | 95 |
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Consumer and Other Portfolio Segment [Member] | Consumer [Member] |  |  |
Accruing loans past due | 205 | 196 |
Nonaccrual loans | 149 | 212 |
Current loans | 18,780 | 19,287 |
Loans | 19,134 | 19,695 | 19,936
Consumer and Other Portfolio Segment [Member] | Consumer [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 205 | 196 |
Consumer and Other Portfolio Segment [Member] | Consumer [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Consumer and Other Portfolio Segment [Member] | Other [Member] |  |  |
Accruing loans past due |  |  |
Nonaccrual loans |  |  |
Current loans | 18,791 | 16,748 |
Loans | 18,791 | 16,748 | $ 19,141
Consumer and Other Portfolio Segment [Member] | Other [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |
Consumer and Other Portfolio Segment [Member] | Other [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |
Accruing loans past due |  |  |

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