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Loans and Allowance for Loan Losses (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Loans and Allowance for Loan Losses (Textual) |  |
Part of loans of 30 days or more past due as a percentage of total loan portfolio | 0.34% | 0.55%
Loans over 90 days past due and still accruing |  |
Real estate loan percentage of total loan | 82.10% | 81.10%
Consumer loans percentage of total real estate loan | 40.20% |
Mortgage loan pledged as collateral for advances from FHLB | $ 487,000 |
Foregone interest income on non accrual loans | $ 309 | $ 439
Loans which exceed supervision loan to value limits, description | Approximately $97.7 million, or 7.0% of our loans had loan-to-value ratios which exceeded regulatory supervisory limits. |
Loan with loan to value ratio of greater than 100%, description | Which 76 loans totaling approximately $40.5 million had loan-to-value ratios of 100% or more. |
Commercial loans percentage of total loan portfolio | 59.80% |
Net of deferred loan fees and costs | $ 2,300 | $ 2,000
Owner occupied RE [Member] |  |
Loans and Allowance for Loan Losses (Textual) |  |
Commercial loans percentage of total loan portfolio | 22.80% |
Non-owner occupied RE [Member] |  |
Loans and Allowance for Loan Losses (Textual) |  |
Commercial loans percentage of total loan portfolio | 22.60% |
Construction [Member] |  |
Loans and Allowance for Loan Losses (Textual) |  |
Commercial loans percentage of total loan portfolio | 3.70% |
Commercial [Member] |  |
Loans and Allowance for Loan Losses (Textual) |  |
Part of loans of 30 days or more past due as a percentage of total loan portfolio | 0.12% | 0.38%
Consumer [Member] |  |
Loans and Allowance for Loan Losses (Textual) |  |
Part of loans of 30 days or more past due as a percentage of total loan portfolio | 0.23% | 0.17%

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