Loans and Related Allowance for Loan Losses (Narrative) (Details)
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3 Months Ended |
9 Months Ended |
12 Months Ended |
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|
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Sep. 30, 2016
USD ($)
contract
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Sep. 30, 2016
USD ($)
contract
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Sep. 30, 2015
USD ($)
contract
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Dec. 31, 2015
USD ($)
|
Jun. 30, 2016
USD ($)
|
Jun. 30, 2015
USD ($)
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Dec. 31, 2014
USD ($)
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| Financing Receivable, Modifications [Line Items] |
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| Commercial amount benchmark minimum for internal annual review |
|
$ 500,000
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| Commercial amount benchmark minimum for annual review by independent reviewer |
|
1,000,000
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| Commercial amount benchmark minimum criticized relationships for annual review by independent reviewer |
|
500,000
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| Commerical amount benchmark internal impairment review |
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500,000
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| Commerical amount benchmark internal impairment review minimum relationship amount |
|
750,000
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| Commercial amount benchmark to require external appraisal |
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500,000
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| Nonaccrual loans |
$ 18,144,000
|
18,144,000
|
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$ 15,498,000
|
|
|
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| Reduction of the ALL resulting from change in evaluation method of loans |
468
|
3,341
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$ 5,744
|
|
|
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| Loans in process of foreclosure |
1,200,000
|
$ 1,200,000
|
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$ 1,800,000
|
|
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| Accruing loans past due 30 days or greater as percent of loan portfolio |
|
0.69%
|
|
0.76%
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|
|
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| Total allowance for loan losses |
12,044,000
|
$ 12,044,000
|
$ 12,211,000
|
$ 11,922,000
|
$ 12,678,000
|
$ 11,809,000
|
$ 12,065,000
|
| Partial Charge Off [Member] |
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| Financing Receivable, Modifications [Line Items] |
|
|
|
|
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| Nonaccrual loans |
$ 5,200,000
|
$ 5,200,000
|
|
4,100,000
|
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| New TDR [Member] |
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| Financing Receivable, Modifications [Line Items] |
|
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| Financing receivable, modifications, number of contracts | contract |
1
|
4
|
8
|
|
|
|
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| Pre Existing TDR Loans Remodified After Maturity [Member] |
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| Financing Receivable, Modifications [Line Items] |
|
|
|
|
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| Financing receivable, modifications, number of contracts | contract |
|
3
|
10
|
|
|
|
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| Unallocated [Member] |
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| Financing Receivable, Modifications [Line Items] |
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| Total allowance for loan losses |
$ 500,000
|
$ 500,000
|
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| Residential Mortgage [Member] |
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| Financing Receivable, Modifications [Line Items] |
|
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| Nonaccrual loans |
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|
|
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$ 70,000
|
|
| Commercial real estate- non owner-occupied [Member] |
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| Financing Receivable, Modifications [Line Items] |
|
|
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| Nonaccrual loans |
$ 9,687,000
|
$ 9,687,000
|
|
$ 1,308,000
|
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