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Loans and Allowance for Credit Losses (Allowance for Credit Losses on Financing Receivables) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Allowance for credit losses: |  |  |  |
Beginning balance | $ 8,358 | $ 7,917 | $ 8,316 | $ 7,695
Charge-offs | (568) | (641) | (1,578) | (1,991)
Recoveries | 219 | 412 | 446 | 794
Net charge-offs | (349) | (229) | (1,132) | (1,197)
Provision | 605 | 410 | 1,430 | 1,600
Ending balance | 8,614 | 8,098 | 8,614 | 8,098
Commercial and Residential Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 1,744 | 1,852 | 1,646 | 1,303
Charge-offs | (9) | (479) | (263) | (1,058)
Recoveries | 8 | 9 | 24 | 116
Net charge-offs | (1) | (470) | (239) | (942)
Provision | 275 | 460 | 611 | 1,481
Ending balance | 2,018 | 1,842 | 2,018 | 1,842
Residential Portfolio Segment [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 2,035 | 2,318 | 2,181 | 2,834
Charge-offs | (407) | (26) | (525) | (283)
Recoveries | 121 | 102 | 188 | 247
Net charge-offs | (286) | 76 | (337) | (36)
Provision | 331 | (103) | 236 | (507)
Ending balance | 2,080 | 2,291 | 2,080 | 2,291
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 2,871 | 2,616 | 2,999 | 2,379
Charge-offs |  |  | (503) | (320)
Recoveries | 10 | 233 | 20 | 248
Net charge-offs | 10 | 233 | (483) | (72)
Provision | 306 | (38) | 671 | 504
Ending balance | 3,187 | 2,811 | 3,187 | 2,811
Commercial Portfolio Segment [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 677 | 505 | 558 | 448
Charge-offs | (139) | (136) | (264) | (285)
Recoveries | 79 | 60 | 201 | 142
Net charge-offs | (60) | (76) | (63) | (143)
Provision | 300 | 70 | 422 | 194
Ending balance | 917 | 499 | 917 | 499
Consumer Portfolio Segment [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 206 | 168 | 156 | 229
Charge-offs | (13) |  | (23) | (45)
Recoveries | 1 | 8 | 13 | 41
Net charge-offs | (12) | 8 | (10) | (4)
Provision | (40) | (20) | 8 | (69)
Ending balance | 154 | 156 | 154 | 156
Unallocated Financing Receivables [Member] |  |  |  |
Allowance for credit losses: |  |  |  |
Beginning balance | 825 | 458 | 776 | 502
Provision | (567) | 41 | (518) | (3)
Ending balance | $ 258 | $ 499 | $ 258 | $ 499

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