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Loans and Allowance for Credit Losses (Details 2) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Impaired Nonaccrual Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | $ 18,154 | $ 20,145
Recorded investment with no allowance | 9,558 | 10,175
Recorded investment with an allowance | 3,585 | 3,292
Related allowance | 808 | 903
Quarter-to-date average recorded investment | 14,267 | 13,741
Year-to-date average recorded investment | 13,570 | 16,988
Impaired Nonaccrual Loans [Member] | Construction Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 11,999 | 9,277
Recorded investment with no allowance | 4,796 | 6,045
Recorded investment with an allowance | 2,889 | 0
Related allowance | 643 | 0
Quarter-to-date average recorded investment | 8,025 | 7,492
Year-to-date average recorded investment | 8,121 | 7,918
Impaired Nonaccrual Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 4,399 | 4,664
Recorded investment with no allowance | 3,591 | 1,053
Recorded investment with an allowance | 487 | 2,982
Related allowance | 156 | 799
Quarter-to-date average recorded investment | 3,812 | 2,604
Year-to-date average recorded investment | 2,710 | 4,014
Impaired Nonaccrual Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 1,451 | 4,703
Recorded investment with no allowance | 884 | 2,842
Recorded investment with an allowance | 209 | 280
Related allowance | 9 | 100
Quarter-to-date average recorded investment | 2,137 | 3,132
Year-to-date average recorded investment | 2,511 | 4,443
Impaired Nonaccrual Loans [Member] | Commercial Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 177 | 1,372
Recorded investment with no allowance | 165 | 136
Recorded investment with an allowance | 0 | 5
Related allowance | 0 | 1
Quarter-to-date average recorded investment | 170 | 389
Year-to-date average recorded investment | 105 | 558
Impaired Nonaccrual Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 128 | 129
Recorded investment with no allowance | 122 | 99
Recorded investment with an allowance | 0 | 25
Related allowance | 0 | 3
Quarter-to-date average recorded investment | 123 | 124
Year-to-date average recorded investment | 123 | 55
Impaired Accruing TDRs [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 16,431 | 16,674
Recorded investment with no allowance | 10,923 | 8,685
Recorded investment with an allowance | 5,508 | 7,989
Related allowance | 420 | 370
Quarter-to-date average recorded investment | 17,333 | 25,107
Year-to-date average recorded investment | 17,263 | 25,320
Impaired Accruing TDRs [Member] | Construction Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 4,081 | 4,022
Recorded investment with no allowance | 3,273 | 3,196
Recorded investment with an allowance | 808 | 826
Related allowance | 33 | 41
Quarter-to-date average recorded investment | 4,099 | 3,404
Year-to-date average recorded investment | 4,076 | 2,301
Impaired Accruing TDRs [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 6,675 | 6,368
Recorded investment with no allowance | 3,350 | 668
Recorded investment with an allowance | 3,325 | 5,700
Related allowance | 207 | 300
Quarter-to-date average recorded investment | 7,520 | 16,190
Year-to-date average recorded investment | 7,084 | 16,131
Impaired Accruing TDRs [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 5,675 | 6,237
Recorded investment with no allowance | 4,300 | 4,774
Recorded investment with an allowance | 1,375 | 1,463
Related allowance | 180 | 29
Quarter-to-date average recorded investment | 5,687 | 5,459
Year-to-date average recorded investment | 6,065 | 6,826
Impaired Accruing TDRs [Member] | Commercial Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 0 | 47
Recorded investment with no allowance | 0 | 47
Recorded investment with an allowance | 0 | 0
Related allowance | 0 | 0
Quarter-to-date average recorded investment | 27 | 54
Year-to-date average recorded investment | 38 | 62
Impaired Accruing TDRs [Member] | Consumer Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 0 | 0
Recorded investment with no allowance | 0 | 0
Recorded investment with an allowance | 0 | 0
Related allowance | 0 | 0
Quarter-to-date average recorded investment | 0 | 0
Year-to-date average recorded investment | 0 | 0
Total Impired Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 34,585 | 36,819
Recorded investment with no allowance | 20,481 | 18,860
Recorded investment with an allowance | 9,093 | 11,281
Related allowance | 1,228 | 1,273
Quarter-to-date average recorded investment | 31,600 | 38,848
Year-to-date average recorded investment | 30,833 | 42,308
Total Impired Loans [Member] | Construction Loans [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 16,080 | 13,299
Recorded investment with no allowance | 8,069 | 9,241
Recorded investment with an allowance | 3,697 | 826
Related allowance | 676 | 41
Quarter-to-date average recorded investment | 12,124 | 10,896
Year-to-date average recorded investment | 12,197 | 10,219
Total Impired Loans [Member] | Residential Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 11,074 | 11,032
Recorded investment with no allowance | 6,941 | 1,721
Recorded investment with an allowance | 3,812 | 8,682
Related allowance | 363 | 1,099
Quarter-to-date average recorded investment | 11,332 | 18,794
Year-to-date average recorded investment | 9,794 | 20,145
Total Impired Loans [Member] | Commercial Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 7,126 | 10,940
Recorded investment with no allowance | 5,184 | 7,616
Recorded investment with an allowance | 1,584 | 1,743
Related allowance | 189 | 129
Quarter-to-date average recorded investment | 7,824 | 8,591
Year-to-date average recorded investment | 8,576 | 11,269
Total Impired Loans [Member] | Commercial Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 177 | 1,419
Recorded investment with no allowance | 165 | 183
Recorded investment with an allowance | 0 | 5
Related allowance | 0 | 1
Quarter-to-date average recorded investment | 197 | 443
Year-to-date average recorded investment | 143 | 620
Total Impired Loans [Member] | Consumer Loan [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Unpaid principal balance | 128 | 129
Recorded investment with no allowance | 122 | 99
Recorded investment with an allowance | 0 | 25
Related allowance | 0 | 3
Quarter-to-date average recorded investment | 123 | 124
Year-to-date average recorded investment | $ 123 | $ 55

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