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Loans and Allowance for Loan Losses (Details 7) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Summary of key information for impaired loans |  |
Unpaid Principal Balance | $ 17,334 | $ 15,542
Impaired loans | 12,557 | 11,157
Impaired loans with related allowance for loan losses | 9,350 | 7,492
Related allowance for loan losses | 3,742 | 2,644
Commercial [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 14,574 | 13,221
Impaired loans | 9,831 | 8,867
Impaired loans with related allowance for loan losses | 6,624 | 5,472
Related allowance for loan losses | 2,280 | 1,874
Commercial [Member] | Owner occupied RE [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 2,232 | 2,284
Impaired loans | 2,177 | 2,243
Impaired loans with related allowance for loan losses | 830 | 2,224
Related allowance for loan losses | 192 | 263
Commercial [Member] | Non-owner occupied RE [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 7,854 | 7,238
Impaired loans | 4,299 | 4,031
Impaired loans with related allowance for loan losses | 3,704 | 1,638
Related allowance for loan losses | 948 | 457
Commercial [Member] | Construction [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance |  |
Impaired loans |  |
Impaired loans with related allowance for loan losses |  |
Related allowance for loan losses |  |
Commercial [Member] | Business [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 4,488 | 3,699
Impaired loans | 3,355 | 2,593
Impaired loans with related allowance for loan losses | 2,090 | 1,610
Related allowance for loan losses | 1,140 | 1,154
Consumer [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 2,760 | 2,321
Impaired loans | 2,726 | 2,290
Impaired loans with related allowance for loan losses | 2,726 | 2,020
Related allowance for loan losses | 1,462 | 770
Consumer [Member] | Real estate [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 2,382 | 1,853
Impaired loans | 2,357 | 1,843
Impaired loans with related allowance for loan losses | 2,357 | 1,843
Related allowance for loan losses | 1,304 | 682
Consumer [Member] | Home equity [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 203 | 207
Impaired loans | 195 | 257
Impaired loans with related allowance for loan losses | 195 |
Related allowance for loan losses | 133 |
Consumer [Member] | Construction [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance |  |
Impaired loans |  |
Impaired loans with related allowance for loan losses |  |
Related allowance for loan losses |  |
Consumer [Member] | Other [Member] |  |
Summary of key information for impaired loans |  |
Unpaid Principal Balance | 175 | 261
Impaired loans | 174 | 190
Impaired loans with related allowance for loan losses | 174 | 177
Related allowance for loan losses | $ 25 | $ 88

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