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Note 3 - Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2016
--- | --- | --- | ---
Accruing loans past due | $ 4,702 | $ 4,469 |
Nonaccrual loans | 11,249 | 12,350 |
Current loans | 744,390 | 737,464 |
Loans | 760,341 | 754,283 | $ 754,261
Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 4,702 | 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 | 870 | 420 |
Nonaccrual loans | 673 | 635 |
Current loans | 43,382 | 45,970 |
Loans | 44,925 | 47,025 | 45,115
Commercial and Agricultural Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 870 | 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 | 184 | 33 |
Nonaccrual loans | 206 | 209 |
Current loans | 18,916 | 16,838 |
Loans | 19,306 | 17,080 | 18,562
Commercial and Agricultural Portfolio Segment [Member] | Agricultural [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 184 | 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 | 1,423 | 492 |
Nonaccrual loans | 5,749 | 6,360 |
Current loans | 351,971 | 342,238 |
Loans | 359,143 | 349,090 | 347,372
Real Estate Portfolio Segment [Member] | Commercial [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 1,423 | 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 | 225 | 54 |
Nonaccrual loans | 184 | 190 |
Current loans | 30,131 | 30,114 |
Loans | 30,540 | 30,358 | 35,970
Real Estate Portfolio Segment [Member] | Commercial Construction [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 225 | 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 |  |  |
Current loans | 9,367 | 11,830 |
Loans | 9,367 | 11,830 | 9,849
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 | 1,762 | 3,179 |
Nonaccrual loans | 3,434 | 3,944 |
Current loans | 190,086 | 188,457 |
Loans | 195,282 | 195,580 | 195,679
Real Estate Portfolio Segment [Member] | Residential [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 1,762 | 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 | 92 | 95 |
Nonaccrual loans | 800 | 800 |
Current loans | 63,978 | 65,982 |
Loans | 64,870 | 66,877 | 66,285
Real Estate Portfolio Segment [Member] | Farmland [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 92 | 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 | 144 | 196 |
Nonaccrual loans | 203 | 212 |
Current loans | 18,841 | 19,287 |
Loans | 19,188 | 19,695 | 19,661
Consumer and Other Portfolio Segment [Member] | Consumer [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | 144 | 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 | 2 |  |
Nonaccrual loans |  |  |
Current loans | 17,718 | 16,748 |
Loans | 17,720 | 16,748 | $ 15,768
Consumer and Other Portfolio Segment [Member] | Other [Member] | Financing Receivables, 30-89 Days Past Due [Member] |  |  |
Accruing loans past due | $ 2 |  |
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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