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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | $ 14,354 | $ 14,900 | $ 15,099 | $ 14,224 |
Provision for loan losses |  | 0 | 0 | 0 | 750 |
Charge-offs |  | (3) | (2) | (856) | (276) |
Recoveries |  | 106 | 151 | 214 | 351 |
Ending balance | $ 14,354 | 14,457 | 15,049 | 14,457 | 15,049 |
Ending ALLL related to loans collectively evaluated for impairment |  | 13,269 |  | 13,269 |  | $ 13,961
Ending ALLL related to loans individually evaluated for impairment |  | 1,179 |  | 1,179 |  | 1,131
Ending ALLL related to purchased credit-impaired loans |  | 14,457 |  | 14,457 |  | 15,099
Collectively evaluated for impairment |  | 1,338,197 |  | 1,338,197 |  | 1,334,638
Individually evaluated for impairment |  | 21,329 |  | 21,329 |  | 23,521
Total loans |  | $ 1,363,200 |  | $ 1,363,200 |  | $ 1,363,351
Ratio of allowance for loan losses to total loans |  | 1.06% |  | 1.06% |  | 1.11%
Allowance for loan losses to non-accrual loans |  | 548.00% |  | 548.00% |  | 161.00%
PCI loans impaired post-acquisition |  | $ 147 |  | $ 147 |  | $ 1,700
Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | 9 |  | 9 |  | 7
Purchase credit-impaired |  | 3,674 |  | 3,674 |  | 5,192
Commercial loans | Commercial and industrial |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 2,540 | 3,125 | 2,837 | 3,056 |
Provision for loan losses |  | 86 | (263) | (306) | (208) |
Charge-offs |  | (2) | 0 | (5) | (66) |
Recoveries |  | 92 | 44 | 190 | 124 |
Ending balance | 2,540 | 2,716 | 2,906 | 2,716 | 2,906 |
Ending ALLL related to loans collectively evaluated for impairment |  | 1,781 |  | 1,781 |  | 2,143
Ending ALLL related to loans individually evaluated for impairment |  | 928 |  | 928 |  | 690
Ending ALLL related to purchased credit-impaired loans |  | 2,716 |  | 2,716 |  | 2,837
Collectively evaluated for impairment |  | 185,478 |  | 185,478 |  | 206,603
Individually evaluated for impairment |  | 4,305 |  | 4,305 |  | 3,296
Total loans |  | $ 189,967 |  | $ 189,967 |  | $ 210,223
Ratio of allowance for loan losses to total loans |  | 1.43% |  | 1.43% |  | 1.35%
Allowance for loan losses to non-accrual loans |  | 767.00% |  | 767.00% |  |
Commercial loans | Commercial and industrial | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 7 |  | $ 7 |  | $ 4
Purchase credit-impaired |  | 184 |  | 184 |  | 324
Commercial real estate loans | Commercial real estate, owner-occupied |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 2,052 | 1,979 | 1,924 | 2,012 |
Provision for loan losses |  | 17 | 9 | 145 | (24) |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 0 | 5 | 0 | 5 |
Ending balance | 2,052 | 2,069 | 1,993 | 2,069 | 1,993 |
Ending ALLL related to loans collectively evaluated for impairment |  | 2,013 |  | 2,013 |  | 1,859
Ending ALLL related to loans individually evaluated for impairment |  | 56 |  | 56 |  | 65
Ending ALLL related to purchased credit-impaired loans |  | 2,069 |  | 2,069 |  | 1,924
Collectively evaluated for impairment |  | 230,653 |  | 230,653 |  | 220,933
Individually evaluated for impairment |  | 6,993 |  | 6,993 |  | 7,056
Total loans |  | $ 239,335 |  | $ 239,335 |  | $ 230,605
Ratio of allowance for loan losses to total loans |  | 0.86% |  | 0.86% |  | 0.83%
Allowance for loan losses to non-accrual loans |  |  |  |  |  | 137.00%
Commercial real estate loans | Commercial real estate, owner-occupied | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 0 |  | $ 0 |  | $ 0
Purchase credit-impaired |  | 1,689 |  | 1,689 |  | 2,616
Commercial real estate loans | Commercial real estate, investor |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 5,944 | 6,713 | 6,672 | 6,196 |
Provision for loan losses |  | 128 | (26) | (606) | 455 |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 12 | 5 | 18 | 41 |
Ending balance | 5,944 | 6,084 | 6,692 | 6,084 | 6,692 |
Ending ALLL related to loans collectively evaluated for impairment |  | 6,084 |  | 6,084 |  | 6,672
Ending ALLL related to loans individually evaluated for impairment |  | 0 |  | 0 |  | 0
Ending ALLL related to purchased credit-impaired loans |  | 6,084 |  | 6,084 |  | 6,672
Collectively evaluated for impairment |  | 667,192 |  | 667,192 |  | 668,371
Individually evaluated for impairment |  | 2,754 |  | 2,754 |  | 2,954
Total loans |  | $ 671,677 |  | $ 671,677 |  | $ 673,499
Ratio of allowance for loan losses to total loans |  | 0.91% |  | 0.91% |  | 0.99%
Allowance for loan losses to non-accrual loans |  | 301.00% |  | 301.00% |  | 275.00%
Commercial real estate loans | Commercial real estate, investor | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 0 |  | $ 0 |  | $ 0
Purchase credit-impaired |  | 1,731 |  | 1,731 |  | 2,174
Commercial real estate loans | Construction |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 535 | 571 | 839 | 633 |
Provision for loan losses |  | 158 | (33) | 693 | 109 |
Charge-offs | (839) | 0 | 0 | (839) | (204) |
Recoveries |  | 0 | 96 | 0 | 96 |
Ending balance | 535 | 693 | 634 | 693 | 634 |
Ending ALLL related to loans collectively evaluated for impairment |  | 691 |  | 691 |  | 836
Ending ALLL related to loans individually evaluated for impairment |  | 0 |  | 0 |  | 0
Ending ALLL related to purchased credit-impaired loans |  | 693 |  | 693 |  | 839
Collectively evaluated for impairment |  | 51,681 |  | 51,681 |  | 42,718
Individually evaluated for impairment |  | 3,238 |  | 3,238 |  | 5,684
Total loans |  | $ 54,921 |  | $ 54,921 |  | $ 48,413
Ratio of allowance for loan losses to total loans |  | 1.26% |  | 1.26% |  | 1.73%
Allowance for loan losses to non-accrual loans |  | 347.00% |  | 347.00% |  | 16.00%
Commercial real estate loans | Construction | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 2 |  | $ 2 |  | $ 3
Purchase credit-impaired |  | 2 |  | 2 |  | 11
Residential loans | Home equity |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 843 | 944 | 859 | 875 |
Provision for loan losses |  | 9 | (18) | (9) | 49 |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 1 | 1 | 3 | 3 |
Ending balance | 843 | 853 | 927 | 853 | 927 |
Ending ALLL related to loans collectively evaluated for impairment |  | 850 |  | 850 |  | 859
Ending ALLL related to loans individually evaluated for impairment |  | 3 |  | 3 |  | 0
Ending ALLL related to purchased credit-impaired loans |  | 853 |  | 853 |  | 859
Collectively evaluated for impairment |  | 113,101 |  | 113,101 |  | 110,028
Individually evaluated for impairment |  | 562 |  | 562 |  | 693
Total loans |  | $ 113,731 |  | $ 113,731 |  | $ 110,788
Ratio of allowance for loan losses to total loans |  | 0.75% |  | 0.75% |  | 0.78%
Allowance for loan losses to non-accrual loans |  | 496.00% |  | 496.00% |  | 307.00%
Residential loans | Home equity | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 0 |  | $ 0 |  | $ 0
Purchase credit-impaired |  | 68 |  | 68 |  | 67
Residential loans | Other residential |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 435 | 454 | 433 | 317 |
Provision for loan losses |  | (50) | (8) | (48) | 129 |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 0 | 0 | 0 | 0 |
Ending balance | 435 | 385 | 446 | 385 | 446 |
Ending ALLL related to loans collectively evaluated for impairment |  | 314 |  | 314 |  | 341
Ending ALLL related to loans individually evaluated for impairment |  | 71 |  | 71 |  | 92
Ending ALLL related to purchased credit-impaired loans |  | 385 |  | 385 |  | 433
Collectively evaluated for impairment |  | 69,662 |  | 69,662 |  | 70,990
Individually evaluated for impairment |  | 2,020 |  | 2,020 |  | 2,045
Total loans |  | $ 71,682 |  | $ 71,682 |  | $ 73,035
Ratio of allowance for loan losses to total loans |  | 0.54% |  | 0.54% |  | 0.59%
Residential loans | Other residential | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 0 |  | $ 0 |  | $ 0
Purchase credit-impaired |  | 0 |  | 0 |  | 0
Consumer loans | Installment and other consumer |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 444 | 481 | 566 | 629 |
Provision for loan losses |  | 32 | 90 | (81) | (136) |
Charge-offs |  | (1) | (2) | (12) | (6) |
Recoveries |  | 1 | 0 | 3 | 82 |
Ending balance | 444 | 476 | 569 | 476 | 569 |
Ending ALLL related to loans collectively evaluated for impairment |  | 355 |  | 355 |  | 282
Ending ALLL related to loans individually evaluated for impairment |  | 121 |  | 121 |  | 284
Ending ALLL related to purchased credit-impaired loans |  | 476 |  | 476 |  | 566
Collectively evaluated for impairment |  | 20,430 |  | 20,430 |  | 14,995
Individually evaluated for impairment |  | 1,457 |  | 1,457 |  | 1,793
Total loans |  | $ 21,887 |  | $ 21,887 |  | $ 16,788
Ratio of allowance for loan losses to total loans |  | 2.17% |  | 2.17% |  | 3.37%
Allowance for loan losses to non-accrual loans |  | 481.00% |  | 481.00% |  | 544.00%
Consumer loans | Installment and other consumer | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | $ 0 |  | $ 0 |  | $ 0
Purchase credit-impaired |  | 0 |  | 0 |  | 0
Unallocated |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Beginning balance |  | 1,561 | 633 | 969 | 506 |
Provision for loan losses |  | (380) | 249 | 212 | 376 |
Charge-offs |  | 0 | 0 | 0 | 0 |
Recoveries |  | 0 | 0 | 0 | 0 |
Ending balance | $ 1,561 | 1,181 | $ 882 | 1,181 | $ 882 |
Ending ALLL related to loans collectively evaluated for impairment |  | 1,181 |  | 1,181 |  | 969
Ending ALLL related to loans individually evaluated for impairment |  | 0 |  | 0 |  | 0
Ending ALLL related to purchased credit-impaired loans |  | 1,181 |  | 1,181 |  | 969
Collectively evaluated for impairment |  | 0 |  | 0 |  | 0
Individually evaluated for impairment |  | 0 |  | 0 |  | 0
Total loans |  | 0 |  | 0 |  | 0
Unallocated | Purchase credit-impaired |  |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |  |
Ending ALLL related to purchased credit-impaired loans |  | 0 |  | 0 |  | 0
Purchase credit-impaired |  | $ 0 |  | $ 0 |  | $ 0

X
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