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Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | --- | --- | ---
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | $ 918 |  | $ 1,159 |  |  |
Collectively evaluated for impairment | 18,435 |  | 18,600 |  |  |
Ending Balance | 19,504 | $ 19,926 | 19,946 | $ 19,861 | $ 19,351 | $ 18,839
Loans |  |  |  |  |  |
Individually evaluated for impairment | 9,602 |  | 9,725 |  |  |
Collectively evaluated for impairment | 1,792,592 |  | 1,754,444 |  |  |
Total | 1,807,574 |  | 1,769,790 |  |  |
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 786 |  | 953 |  |  |
Collectively evaluated for impairment | 9,307 |  | 10,342 |  |  |
Ending Balance | 10,244 | 11,168 | 11,482 | 10,931 | 10,818 | 10,915
Loans |  |  |  |  |  |
Individually evaluated for impairment | 8,967 |  | 8,823 |  |  |
Collectively evaluated for impairment | 1,074,936 |  | 1,037,086 |  |  |
Total | 1,087,781 |  | 1,050,001 |  |  |
Residential Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 132 |  | 206 |  |  |
Collectively evaluated for impairment | 1,463 |  | 1,628 |  |  |
Ending Balance | 1,595 | 1,769 | 1,834 | 1,760 | 1,622 | 1,374
Loans |  |  |  |  |  |
Individually evaluated for impairment | 635 |  | 902 |  |  |
Collectively evaluated for impairment | 429,103 |  | 443,224 |  |  |
Total | 431,240 |  | 445,655 |  |  |
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 5,258 |  | 4,945 |  |  |
Ending Balance | 5,258 | 5,106 | 4,945 | 4,678 | 4,494 | 4,370
Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 288,553 |  | 274,134 |  |  |
Total | 288,553 |  | 274,134 |  |  |
Unallocated |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Individually evaluated for impairment | 0 |  | 0 |  |  |
Collectively evaluated for impairment | 2,407 |  | 1,685 |  |  |
Ending Balance | 2,407 | $ 1,883 | 1,685 | $ 2,492 | $ 2,417 | $ 2,180
Receivables Acquired with Deteriorated Credit Quality [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 151 |  | 187 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 5,380 |  | 5,621 |  |  |
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Portfolio Segment [Member] |  |  |  |  |  |
Ending Balance Attributable to Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses | 151 |  | 187 |  |  |
Loans |  |  |  |  |  |
Financing Receivable, Net | 3,878 |  | 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 | 1,502 |  | 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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