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Loans and Allowance for Credit Losses (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2016 | Dec. 31, 2015
Impaired nonaccrual loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | $ 20,029 | $ 17,704 | $ 20,029 | $ 17,704
Recorded investment with no allowance | 8,631 | 8,492 | 8,631 | 8,492
Recorded investment with an allowance | 4,900 | 3,601 | 4,900 | 3,601
Related allowance | 1,039 | 812 | 1,039 | 812
Average recorded investment | 11,731 | 13,444 | 12,039 | 13,221
Interest income recognized |  |  | 0 | 0
Impaired nonaccrual loans [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 11,000 | 11,850 | 11,000 | 11,850
Recorded investment with no allowance | 2,562 | 4,647 | 2,562 | 4,647
Recorded investment with an allowance | 2,867 | 2,882 | 2,867 | 2,882
Related allowance | 739 | 588 | 739 | 588
Average recorded investment | 5,489 | 8,478 | 6,353 | 8,169
Interest income recognized |  |  | 0 | 0
Impaired nonaccrual loans [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 5,886 | 2,563 | 5,886 | 2,563
Recorded investment with no allowance | 4,046 | 1,773 | 4,046 | 1,773
Recorded investment with an allowance | 1,579 | 487 | 1,579 | 487
Related allowance | 134 | 208 | 134 | 208
Average recorded investment | 3,914 | 2,041 | 3,103 | 2,159
Interest income recognized |  |  | 0 | 0
Impaired nonaccrual loans [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 2,832 | 2,988 | 2,832 | 2,988
Recorded investment with no allowance | 1,777 | 1,813 | 1,777 | 1,813
Recorded investment with an allowance | 409 | 209 | 409 | 209
Related allowance | 121 | 9 | 121 | 9
Average recorded investment | 2,058 | 2,707 | 2,308 | 2,698
Interest income recognized |  |  | 0 | 0
Impaired nonaccrual loans [Member] | Commercial Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 212 | 175 | 212 | 175
Recorded investment with no allowance | 147 | 161 | 147 | 161
Recorded investment with an allowance | 45 | 0 | 45 | 0
Related allowance | 45 | 0 | 45 | 0
Average recorded investment | 164 | 95 | 161 | 72
Interest income recognized |  |  | 0 | 0
Impaired nonaccrual loans [Member] | Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 99 | 128 | 99 | 128
Recorded investment with no allowance | 99 | 98 | 99 | 98
Recorded investment with an allowance | 0 | 23 | 0 | 23
Related allowance | 0 | 7 | 0 | 7
Average recorded investment | 106 | 123 | 114 | 123
Interest income recognized |  |  | 0 | 0
Impaired Accruing TDRs [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 13,337 | 15,495 | 13,337 | 15,495
Recorded investment with no allowance | 7,757 | 7,348 | 7,757 | 7,348
Recorded investment with an allowance | 5,580 | 8,147 | 5,580 | 8,147
Related allowance | 253 | 589 | 253 | 589
Average recorded investment | 14,241 | 17,781 | 14,657 | 17,228
Interest income recognized |  |  | 230 | 316
Impaired Accruing TDRs [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 4,241 | 4,069 | 4,241 | 4,069
Recorded investment with no allowance | 3,449 | 3,266 | 3,449 | 3,266
Recorded investment with an allowance | 792 | 803 | 792 | 803
Related allowance | 25 | 31 | 25 | 31
Average recorded investment | 4,244 | 4,109 | 4,142 | 4,064
Interest income recognized |  |  | 43 | 40
Impaired Accruing TDRs [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 4,095 | 5,686 | 4,095 | 5,686
Recorded investment with no allowance | 2,719 | 2,380 | 2,719 | 2,380
Recorded investment with an allowance | 1,376 | 3,306 | 1,376 | 3,306
Related allowance | 73 | 227 | 73 | 227
Average recorded investment | 4,931 | 7,393 | 5,300 | 6,866
Interest income recognized |  |  | 102 | 160
Impaired Accruing TDRs [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 5,001 | 5,740 | 5,001 | 5,740
Recorded investment with no allowance | 1,589 | 1,702 | 1,589 | 1,702
Recorded investment with an allowance | 3,412 | 4,038 | 3,412 | 4,038
Related allowance | 155 | 331 | 155 | 331
Average recorded investment | 5,066 | 6,238 | 5,215 | 6,255
Interest income recognized |  |  | 85 | 116
Impaired Accruing TDRs [Member] | Commercial 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 | 41 | 0 | 43
Interest income recognized |  |  | 0 | 0
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
Interest income recognized |  |  | 0 | 0
Total Impired Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 33,366 | 33,199 | 33,366 | 33,199
Recorded investment with no allowance | 16,387 | 15,840 | 16,387 | 15,840
Recorded investment with an allowance | 10,481 | 11,748 | 10,481 | 11,748
Related allowance | 1,292 | 1,401 | 1,292 | 1,401
Average recorded investment | 25,972 | 31,225 | 26,696 | 30,449
Interest income recognized |  |  | 230 | 316
Total Impired Loans [Member] | Construction Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 15,241 | 15,919 | 15,241 | 15,919
Recorded investment with no allowance | 6,011 | 7,913 | 6,011 | 7,913
Recorded investment with an allowance | 3,659 | 3,685 | 3,659 | 3,685
Related allowance | 764 | 619 | 764 | 619
Average recorded investment | 9,733 | 12,587 | 10,495 | 12,233
Interest income recognized |  |  | 43 | 40
Total Impired Loans [Member] | Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 9,980 | 8,249 | 9,980 | 8,249
Recorded investment with no allowance | 6,764 | 4,153 | 6,764 | 4,153
Recorded investment with an allowance | 2,955 | 3,793 | 2,955 | 3,793
Related allowance | 207 | 435 | 207 | 435
Average recorded investment | 8,845 | 9,434 | 8,403 | 9,025
Interest income recognized |  |  | 102 | 160
Total Impired Loans [Member] | Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 7,834 | 8,728 | 7,834 | 8,728
Recorded investment with no allowance | 3,366 | 3,515 | 3,366 | 3,515
Recorded investment with an allowance | 3,822 | 4,247 | 3,822 | 4,247
Related allowance | 276 | 340 | 276 | 340
Average recorded investment | 7,124 | 8,945 | 7,523 | 8,953
Interest income recognized |  |  | 85 | 116
Total Impired Loans [Member] | Commercial Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 212 | 175 | 212 | 175
Recorded investment with no allowance | 147 | 161 | 147 | 161
Recorded investment with an allowance | 45 | 0 | 45 | 0
Related allowance | 45 | 0 | 45 | 0
Average recorded investment | 164 | 136 | 161 | 115
Interest income recognized |  |  | 0 | 0
Total Impired Loans [Member] | Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Unpaid principal balance | 99 | 128 | 99 | 128
Recorded investment with no allowance | 99 | 98 | 99 | 98
Recorded investment with an allowance | 0 | 23 | 0 | 23
Related allowance | 0 | 7 | 0 | 7
Average recorded investment | $ 106 | $ 123 | 114 | 123
Interest income recognized |  |  | $ 0 | $ 0

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