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Loans and Allowance for Credit Losses (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2014 | Dec. 31, 2013
Impaired Nonaccrual Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | $ 20,099 | $ 21,554 | $ 20,099 | $ 21,554
Recorded investment with no allowance | 12,123 | 12,422 | 12,123 | 12,422
Recorded investment with an allowance | 596 | 2,204 | 596 | 2,204
Related allowance | 593 | 716 | 593 | 716
Average recorded investment | 13,741 | 15,363 | 16,988 | 26,006
Impaired Nonaccrual Loans [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 10,542 | 6,787 | 10,542 | 6,787
Recorded investment with no allowance | 6,801 | 3,709 | 6,801 | 3,709
Recorded investment with an allowance | 200 | 240 | 200 | 240
Related allowance | 200 | 203 | 200 | 203
Average recorded investment | 7,492 | 5,563 | 7,918 | 7,270
Impaired Nonaccrual Loans [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 3,191 | 7,692 | 3,191 | 7,692
Recorded investment with no allowance | 2,300 | 3,862 | 2,300 | 3,862
Recorded investment with an allowance | 73 | 1,304 | 73 | 1,304
Related allowance | 75 | 225 | 75 | 225
Average recorded investment | 2,604 | 5,094 | 4,014 | 10,240
Impaired Nonaccrual Loans [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 4,557 | 5,218 | 4,557 | 5,218
Recorded investment with no allowance | 2,756 | 4,261 | 2,756 | 4,261
Recorded investment with an allowance | 0 | 410 | 0 | 410
Related allowance | 0 | 38 | 0 | 38
Average recorded investment | 3,132 | 3,917 | 4,443 | 7,829
Impaired Nonaccrual Loans [Member] | Commercial Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 1,680 | 1,801 | 1,680 | 1,801
Recorded investment with no allowance | 167 | 547 | 167 | 547
Recorded investment with an allowance | 298 | 245 | 298 | 245
Related allowance | 293 | 245 | 293 | 245
Average recorded investment | 389 | 740 | 558 | 619
Impaired Nonaccrual Loans [Member] | Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 129 | 56 | 129 | 56
Recorded investment with no allowance | 99 | 43 | 99 | 43
Recorded investment with an allowance | 25 | 5 | 25 | 5
Related allowance | 25 | 5 | 25 | 5
Average recorded investment | 124 | 49 | 55 | 48
Impaired Accruing TDRs [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 25,247 | 26,088 | 25,247 | 26,088
Recorded investment with no allowance | 20,980 | 23,805 | 20,980 | 23,805
Recorded investment with an allowance | 4,267 | 2,283 | 4,267 | 2,283
Related allowance | 175 | 67 | 175 | 67
Average recorded investment | 25,107 | 27,445 | 25,320 | 38,919
Impaired Accruing TDRs [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 3,403 | 1,620 | 3,403 | 1,620
Recorded investment with no allowance | 3,316 | 1,527 | 3,316 | 1,527
Recorded investment with an allowance | 87 | 93 | 87 | 93
Related allowance | 1 | 1 | 1 | 1
Average recorded investment | 3,404 | 1,759 | 2,301 | 14,405
Impaired Accruing TDRs [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 16,226 | 14,582 | 16,226 | 14,582
Recorded investment with no allowance | 12,813 | 13,177 | 12,813 | 13,177
Recorded investment with an allowance | 3,413 | 1,405 | 3,413 | 1,405
Related allowance | 168 | 60 | 168 | 60
Average recorded investment | 16,190 | 15,387 | 16,131 | 11,101
Impaired Accruing TDRs [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 5,566 | 9,791 | 5,566 | 9,791
Recorded investment with no allowance | 4,799 | 9,006 | 4,799 | 9,006
Recorded investment with an allowance | 767 | 785 | 767 | 785
Related allowance | 6 | 6 | 6 | 6
Average recorded investment | 5,459 | 10,201 | 6,826 | 13,308
Impaired Accruing TDRs [Member] | Commercial Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 52 | 95 | 52 | 95
Recorded investment with no allowance | 52 | 95 | 52 | 95
Recorded investment with an allowance | 0 | 0 | 0 | 0
Related allowance | 0 | 0 | 0 | 0
Average recorded investment | 54 | 98 | 62 | 105
Impaired Accruing TDRs [Member] | Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 0 | 0 | 0 | 0
Recorded investment with no allowance | 0 | 0 | 0 | 0
Recorded investment with an allowance | 0 | 0 | 0 | 0
Related allowance | 0 | 0 | 0 | 0
Average recorded investment | 0 | 0 | 0 | 0
Total Impired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 45,346 | 47,642 | 45,346 | 47,642
Recorded investment with no allowance | 33,103 | 36,227 | 33,103 | 36,227
Recorded investment with an allowance | 4,863 | 4,487 | 4,863 | 4,487
Related allowance | 768 | 783 | 768 | 783
Average recorded investment | 38,848 | 42,808 | 42,308 | 64,925
Total Impired Loans [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 13,945 | 8,407 | 13,945 | 8,407
Recorded investment with no allowance | 10,117 | 5,236 | 10,117 | 5,236
Recorded investment with an allowance | 287 | 333 | 287 | 333
Related allowance | 201 | 204 | 201 | 204
Average recorded investment | 10,896 | 7,322 | 10,219 | 21,675
Total Impired Loans [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 19,417 | 22,274 | 19,417 | 22,274
Recorded investment with no allowance | 15,113 | 17,039 | 15,113 | 17,039
Recorded investment with an allowance | 3,486 | 2,709 | 3,486 | 2,709
Related allowance | 243 | 285 | 243 | 285
Average recorded investment | 18,794 | 20,481 | 20,145 | 21,341
Total Impired Loans [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 10,123 | 15,009 | 10,123 | 15,009
Recorded investment with no allowance | 7,555 | 13,267 | 7,555 | 13,267
Recorded investment with an allowance | 767 | 1,195 | 767 | 1,195
Related allowance | 6 | 44 | 6 | 44
Average recorded investment | 8,591 | 14,118 | 11,269 | 21,137
Total Impired Loans [Member] | Commercial Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 1,732 | 1,896 | 1,732 | 1,896
Recorded investment with no allowance | 219 | 642 | 219 | 642
Recorded investment with an allowance | 298 | 245 | 298 | 245
Related allowance | 293 | 245 | 293 | 245
Average recorded investment | 443 | 838 | 620 | 724
Total Impired Loans [Member] | Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 129 | 56 | 129 | 56
Recorded investment with no allowance | 99 | 43 | 99 | 43
Recorded investment with an allowance | 25 | 5 | 25 | 5
Related allowance | 25 | 5 | 25 | 5
Average recorded investment | $ 124 | $ 49 | $ 55 | $ 48

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