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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Allowance for loan losses: |  |  |  |  |
Beginning balance | $ 15,232 | $ 15,087 | $ 15,442 | $ 14,999 |
(Reversal of) provision for loan losses | 0 | (1,550) | 0 | (1,550) |
Charge-offs | (6) | 0 | (292) | (13) |
Recoveries | 22 | 2,176 | 98 | 2,277 |
Ending balance | 15,248 | 15,713 | 15,248 | 15,713 |
Ending ALLL related to loans collectively evaluated for impairment | 14,662 |  | 14,662 |  | $ 14,451
Ending ALLL related to loans individually evaluated for impairment | 586 |  | 586 |  | 991
Ending ALLL | 15,248 |  | 15,248 |  | 15,442
Collectively evaluated for impairment | 1,504,475 |  | 1,504,475 |  | 1,465,383
Individually evaluated for impairment | 17,700 |  | 17,700 |  | 18,313
Total loans | $ 1,524,447 |  | $ 1,524,447 |  | $ 1,486,616
Ratio of allowance for loan losses to total loans | 1.00% |  | 1.00% |  | 1.04%
Allowance for loan losses to non-accrual loans | 1159.00% |  | 1159.00% |  | 10650.00%
Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 2,272 |  | 2,272 |  | 2,920
Commercial loans | Commercial and industrial |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 3,932 | 2,637 | 3,248 | 3,023 |
(Reversal of) provision for loan losses | 612 | 828 | 1,509 | 388 |
Charge-offs | (5) | 0 | (289) | (9) |
Recoveries | 21 | 29 | 92 | 92 |
Ending balance | 4,560 | 3,494 | 4,560 | 3,494 |
Ending ALLL related to loans collectively evaluated for impairment | 4,525 |  | 4,525 |  | 2,963
Ending ALLL related to loans individually evaluated for impairment | 35 |  | 35 |  | 285
Ending ALLL | 4,560 |  | 4,560 |  | 3,248
Collectively evaluated for impairment | 216,594 |  | 216,594 |  | 216,368
Individually evaluated for impairment | 2,050 |  | 2,050 |  | 2,207
Total loans | $ 218,681 |  | $ 218,681 |  | $ 218,615
Ratio of allowance for loan losses to total loans | 2.09% |  | 2.09% |  | 1.49%
Commercial loans | Commercial and industrial | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 37 |  | 37 |  | 40
Commercial real estate loans | Commercial real estate, owner-occupied |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 2,082 | 1,631 | 1,753 | 2,249 |
(Reversal of) provision for loan losses | (56) | (10) | 273 | (628) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 2,026 | 1,621 | 2,026 | 1,621 |
Ending ALLL related to loans collectively evaluated for impairment | 1,942 |  | 1,942 |  | 1,590
Ending ALLL related to loans individually evaluated for impairment | 84 |  | 84 |  | 163
Ending ALLL | 2,026 |  | 2,026 |  | 1,753
Collectively evaluated for impairment | 256,593 |  | 256,593 |  | 239,648
Individually evaluated for impairment | 6,999 |  | 6,999 |  | 6,993
Total loans | $ 264,732 |  | $ 264,732 |  | $ 247,713
Ratio of allowance for loan losses to total loans | 0.77% |  | 0.77% |  | 0.71%
Commercial real estate loans | Commercial real estate, owner-occupied | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 1,140 |  | 1,140 |  | 1,072
Commercial real estate loans | Commercial real estate, investor |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 6,065 | 6,595 | 6,320 | 6,178 |
(Reversal of) provision for loan losses | 33 | (2,416) | (222) | (2,009) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 2,146 | 0 | 2,156 |
Ending balance | 6,098 | 6,325 | 6,098 | 6,325 |
Ending ALLL related to loans collectively evaluated for impairment | 5,729 |  | 5,729 |  | 5,945
Ending ALLL related to loans individually evaluated for impairment | 369 |  | 369 |  | 375
Ending ALLL | 6,098 |  | 6,098 |  | 6,320
Collectively evaluated for impairment | 717,361 |  | 717,361 |  | 720,266
Individually evaluated for impairment | 3,217 |  | 3,217 |  | 2,256
Total loans | $ 721,576 |  | $ 721,576 |  | $ 724,228
Ratio of allowance for loan losses to total loans | 0.85% |  | 0.85% |  | 0.87%
Allowance for loan losses to non-accrual loans | 596.00% |  | 596.00% |  |
Commercial real estate loans | Commercial real estate, investor | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 998 |  | 998 |  | 1,706
Commercial real estate loans | Construction |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 411 | 831 | 781 | 724 |
(Reversal of) provision for loan losses | 217 | 105 | (153) | 212 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 628 | 936 | 628 | 936 |
Ending ALLL related to loans collectively evaluated for impairment | 623 |  | 623 |  | 773
Ending ALLL related to loans individually evaluated for impairment | 5 |  | 5 |  | 8
Ending ALLL | 628 |  | 628 |  | 781
Collectively evaluated for impairment | 73,210 |  | 73,210 |  | 71,564
Individually evaluated for impairment | 2,969 |  | 2,969 |  | 3,245
Total loans | $ 76,179 |  | $ 76,179 |  | $ 74,809
Ratio of allowance for loan losses to total loans | 0.82% |  | 0.82% |  | 1.04%
Commercial real estate loans | Construction | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 0 |  | 0 |  | 0
Residential loans | Home equity |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 981 | 1,076 | 973 | 910 |
(Reversal of) provision for loan losses | 21 | (125) | 29 | 40 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 1 | 0 | 2 |
Ending balance | 1,002 | 952 | 1,002 | 952 |
Ending ALLL related to loans collectively evaluated for impairment | 996 |  | 996 |  | 966
Ending ALLL related to loans individually evaluated for impairment | 6 |  | 6 |  | 7
Ending ALLL | 1,002 |  | 1,002 |  | 973
Collectively evaluated for impairment | 120,629 |  | 120,629 |  | 116,390
Individually evaluated for impairment | 640 |  | 640 |  | 715
Total loans | $ 121,366 |  | $ 121,366 |  | $ 117,207
Ratio of allowance for loan losses to total loans | 0.83% |  | 0.83% |  | 0.83%
Allowance for loan losses to non-accrual loans | 343.00% |  | 343.00% |  | 1071.00%
Residential loans | Home equity | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 97 |  | 97 |  | 102
Residential loans | Other residential |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 509 | 426 | 454 | 394 |
(Reversal of) provision for loan losses | 33 | 22 | 88 | 54 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 542 | 448 | 542 | 448 |
Ending ALLL related to loans collectively evaluated for impairment | 540 |  | 540 |  | 399
Ending ALLL related to loans individually evaluated for impairment | 2 |  | 2 |  | 55
Ending ALLL | 542 |  | 542 |  | 454
Collectively evaluated for impairment | 95,778 |  | 95,778 |  | 76,584
Individually evaluated for impairment | 1,159 |  | 1,159 |  | 1,965
Total loans | $ 96,937 |  | $ 96,937 |  | $ 78,549
Ratio of allowance for loan losses to total loans | 0.56% |  | 0.56% |  | 0.58%
Residential loans | Other residential | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 0 |  | 0 |  | 0
Consumer loans | Installment and other consumer |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 340 | 437 | 372 | 425 |
(Reversal of) provision for loan losses | (5) | (73) | (40) | (84) |
Charge-offs | (1) | 0 | (3) | (4) |
Recoveries | 1 | 0 | 6 | 27 |
Ending balance | 335 | 364 | 335 | 364 |
Ending ALLL related to loans collectively evaluated for impairment | 250 |  | 250 |  | 274
Ending ALLL related to loans individually evaluated for impairment | 85 |  | 85 |  | 98
Ending ALLL | 335 |  | 335 |  | 372
Collectively evaluated for impairment | 24,310 |  | 24,310 |  | 24,563
Individually evaluated for impairment | 666 |  | 666 |  | 932
Total loans | $ 24,976 |  | $ 24,976 |  | $ 25,495
Ratio of allowance for loan losses to total loans | 1.34% |  | 1.34% |  | 1.46%
Allowance for loan losses to non-accrual loans |  |  |  |  | 683.00%
Consumer loans | Installment and other consumer | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 0 |  | 0 |  | 0
Unallocated |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 912 | 1,454 | 1,541 | 1,096 |
(Reversal of) provision for loan losses | (855) | 119 | (1,484) | 477 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 57 | $ 1,573 | 57 | $ 1,573 |
Ending ALLL related to loans collectively evaluated for impairment | 57 |  | 57 |  | 1,541
Ending ALLL related to loans individually evaluated for impairment | 0 |  | 0 |  | 0
Ending ALLL | 57 |  | 57 |  | 1,541
Collectively evaluated for impairment | 0 |  | 0 |  | 0
Individually evaluated for impairment | 0 |  | 0 |  | 0
Total loans | 0 |  | 0 |  | 0
Unallocated | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | 0 |  | 0 |  | 0
Purchased credit-impaired | $ 0 |  | $ 0 |  | $ 0

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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