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Loans and Allowance for Loan Losses (Details 3) - Commercial loans [Member] - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | $ 906,953 | $ 761,457
Owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 316,818 | 285,938
Non-owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 312,798 | 239,574
Construction [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 51,179 | 33,393
Business [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 226,158 | 202,552
Pass [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 886,501 | 743,922
Pass [Member] | Owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 312,628 | 282,055
Pass [Member] | Non-owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 306,965 | 234,957
Pass [Member] | Construction [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 51,179 | 33,393
Pass [Member] | Business [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 215,729 | 193,517
Special Mention [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 9,392 | 4,561
Special Mention [Member] | Owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 1,770 | 1,097
Special Mention [Member] | Non-owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 2,082 | 975
Special Mention [Member] | Construction [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Special Mention [Member] | Business [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 5,540 | 2,489
Substandard [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 11,060 | 12,974
Substandard [Member] | Owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 2,420 | 2,786
Substandard [Member] | Non-owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 3,751 | 3,642
Substandard [Member] | Construction [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Substandard [Member] | Business [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans | 4,889 | 6,546
Doubtful [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Doubtful [Member] | Owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Doubtful [Member] | Non-owner occupied RE [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Doubtful [Member] | Construction [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |
Doubtful [Member] | Business [Member] |  |
Outstanding commercial and consumer loans by risk category |  |
Outstanding consumer loans |  |

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- Definition Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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