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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands | Sep. 30, 2016 | Jun. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | --- | --- | --- | --- | ---
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | $ 857 |  | $ 1,159 |  |  |
Collectively evaluated for impairment | 18,069 |  | 18,600 |  |  |
Ending Balance | 19,074 | $ 19,504 | 19,946 | $ 19,925 | $ 19,861 | $ 18,839
Loans |  |  |  |  |  |
Individually evaluated for impairment | 10,644 |  | 9,725 |  |  |
Collectively evaluated for impairment | 1,811,581 |  | 1,754,444 |  |  |
Total | 1,827,474 |  | 1,769,790 |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 748 |  | 953 |  |  |
Collectively evaluated for impairment | 9,369 |  | 10,342 |  |  |
Ending Balance | 10,265 | 10,244 | 11,482 | 12,089 | 10,931 | 10,915
Loans |  |  |  |  |  |
Individually evaluated for impairment | 10,073 |  | 8,823 |  |  |
Collectively evaluated for impairment | 1,076,103 |  | 1,037,086 |  |  |
Total | 1,089,936 |  | 1,050,001 |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 109 |  | 206 |  |  |
Collectively evaluated for impairment | 1,469 |  | 1,628 |  |  |
Ending Balance | 1,578 | 1,595 | 1,834 | 1,894 | 1,760 | 1,374
Loans |  |  |  |  |  |
Individually evaluated for impairment | 571 |  | 902 |  |  |
Collectively evaluated for impairment | 429,413 |  | 443,224 |  |  |
Total | 431,473 |  | 445,655 |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 5,619 |  | 4,945 |  |  |
Ending Balance | 5,619 | 5,258 | 4,945 | 4,948 | 4,678 | 4,370
Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 306,065 |  | 274,134 |  |  |
Total | 306,065 |  | 274,134 |  |  |
Unallocated |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 1,612 |  | 1,685 |  |  |
Ending Balance | 1,612 | $ 2,407 | 1,685 | $ 994 | $ 2,492 | $ 2,180
Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 148 |  | 187 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 5,249 |  | 5,621 |  |  |
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 148 |  | 187 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 3,760 |  | 4,092 |  |  |
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 0 |  | 0 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 1,489 |  | 1,529 |  |  |
Receivables Acquired with Deteriorated Credit Quality [Member] | Consumer Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 0 |  | 0 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 0 |  | 0 |  |  |
Receivables Acquired with Deteriorated Credit Quality [Member] | Unallocated |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | $ 0 |  | $ 0 |  |  |

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