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Loans and Allowance for Loan Losses - Impaired Loans and Related Allowance (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | $ 6,903 |  | $ 12,928
With a specific allowance recorded | 15,416 |  | 8,260
Total recorded investment in impaired loans | 22,319 |  | 21,188
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 24,327 |  | 23,409
Specific valuation | 1,608 |  | 1,169
Average recorded investment in impaired loans during the period | 21,754 | $ 25,168 |
Interest income recognized on impaired loans during the period ended | 217 | 190 |
Charged-off portion of impaired loans | 2,000 |  | 2,100
Outstanding commitments to extend credit on impaired loans | 1,500 |  | 1,300
Commercial loans | Commercial and industrial |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 317 |  | 2,198
With a specific allowance recorded | 3,529 |  | 2,522
Total recorded investment in impaired loans | 3,846 |  | 4,720
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 3,846 |  | 4,763
Specific valuation | 829 |  | 912
Average recorded investment in impaired loans during the period | 4,283 | 3,718 |
Interest income recognized on impaired loans during the period ended | 57 | 62 |
Commercial real estate loans | Commercial real estate, owner-occupied |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 0 |  | 4,111
With a specific allowance recorded | 6,993 |  | 2,882
Total recorded investment in impaired loans | 6,993 |  | 6,993
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 6,993 |  | 6,993
Specific valuation | 129 |  | 70
Average recorded investment in impaired loans during the period | 6,993 | 8,443 |
Interest income recognized on impaired loans during the period ended | 66 | 66 |
Commercial real estate loans | Commercial real estate, investor |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 1,789 |  | 2,416
With a specific allowance recorded | 2,052 |  | 0
Total recorded investment in impaired loans | 3,841 |  | 2,416
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 5,833 |  | 4,408
Specific valuation | 466 |  | 0
Average recorded investment in impaired loans during the period | 3,129 | 2,915 |
Interest income recognized on impaired loans during the period ended | 16 | 6 |
Commercial real estate loans | Construction |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 2,688 |  | 2,687
With a specific allowance recorded | 550 |  | 551
Total recorded investment in impaired loans | 3,238 |  | 3,238
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 3,238 |  | 3,424
Specific valuation | 4 |  | 1
Average recorded investment in impaired loans during the period | 3,238 | 5,681 |
Interest income recognized on impaired loans during the period ended | 38 | 9 |
Residential loans | Home equity |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 791 |  | 171
With a specific allowance recorded | 386 |  | 388
Total recorded investment in impaired loans | 1,177 |  | 559
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 1,193 |  | 559
Specific valuation | 4 |  | 3
Average recorded investment in impaired loans during the period | 868 | 627 |
Interest income recognized on impaired loans during the period ended | 4 | 5 |
Residential loans | Other residential |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 1,205 |  | 1,214
With a specific allowance recorded | 793 |  | 797
Total recorded investment in impaired loans | 1,998 |  | 2,011
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 1,998 |  | 2,011
Specific valuation | 69 |  | 67
Average recorded investment in impaired loans during the period | 2,004 | 2,041 |
Interest income recognized on impaired loans during the period ended | 23 | 23 |
Consumer loans | Installment and other consumer |  |  |
Recorded investment in impaired loans: |  |  |
With no specific allowance recorded | 113 |  | 131
With a specific allowance recorded | 1,113 |  | 1,120
Total recorded investment in impaired loans | 1,226 |  | 1,251
Unpaid principal balance of impaired loans: |  |  |
Total unpaid principal balance of impaired loans | 1,226 |  | 1,251
Specific valuation | 107 |  | $ 116
Average recorded investment in impaired loans during the period | 1,239 | 1,743 |
Interest income recognized on impaired loans during the period ended | $ 13 | $ 19 |

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524 + Details
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