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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, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Allowance for loan losses: |  |  |  |  |
Beginning balance | $ 15,835 | $ 15,813 | $ 15,821 | $ 15,767 |
Provision for loan losses | 400 | 0 | 400 | 0 |
Charge-offs | 0 | 0 | (9) | (5) |
Recoveries | 5 | 4 | 28 | 55 |
Ending balance | 16,240 | 15,817 | 16,240 | 15,817 |
Ending ALLL related to loans collectively evaluated for impairment | 15,851 |  | 15,851 |  | $ 15,043
Ending ALLL related to loans individually evaluated for impairment | 389 |  | 389 |  | 778
Ending ALLL | 16,240 |  | 16,240 |  | 15,821
Collectively evaluated for impairment | 1,784,280 |  | 1,784,280 |  | 1,746,714
Individually evaluated for impairment | 12,351 |  | 12,351 |  | 15,038
Total loans | $ 1,798,690 |  | $ 1,798,690 |  | $ 1,763,864
Ratio of allowance for loan losses to total loans | 0.90% |  | 0.90% |  | 0.90%
Allowance for loan losses to non-accrual loans | 3848.00% |  | 3848.00% |  | 2270.00%
Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 2,059 |  | 2,059 |  | 2,112
Commercial loans | Commercial and industrial |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 2,368 | 2,597 | 2,436 | 3,654 |
Provision for loan losses | 326 | (245) | 256 | (1,308) |
Charge-offs | 0 | 0 | (9) | (3) |
Recoveries | 5 | 4 | 16 | 13 |
Ending balance | 2,699 | 2,356 | 2,699 | 2,356 |
Ending ALLL related to loans collectively evaluated for impairment | 2,516 |  | 2,516 |  | 1,970
Ending ALLL related to loans individually evaluated for impairment | 183 |  | 183 |  | 466
Ending ALLL | 2,699 |  | 2,699 |  | 2,436
Collectively evaluated for impairment | 259,664 |  | 259,664 |  | 228,883
Individually evaluated for impairment | 1,160 |  | 1,160 |  | 1,825
Total loans | $ 260,828 |  | $ 260,828 |  | $ 230,739
Ratio of allowance for loan losses to total loans | 1.03% |  | 1.03% |  | 1.06%
Allowance for loan losses to non-accrual loans | 1384.00% |  | 1384.00% |  | 764.00%
Commercial loans | Commercial and industrial | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 4 |  | 4 |  | 31
Commercial real estate loans | Commercial real estate, owner-occupied |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 2,321 | 2,339 | 2,407 | 2,294 |
Provision for loan losses | 21 | 83 | (65) | 128 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 2,342 | 2,422 | 2,342 | 2,422 |
Ending ALLL related to loans collectively evaluated for impairment | 2,257 |  | 2,257 |  | 2,218
Ending ALLL related to loans individually evaluated for impairment | 85 |  | 85 |  | 189
Ending ALLL | 2,342 |  | 2,342 |  | 2,407
Collectively evaluated for impairment | 302,334 |  | 302,334 |  | 305,097
Individually evaluated for impairment | 6,999 |  | 6,999 |  | 6,993
Total loans | $ 310,486 |  | $ 310,486 |  | $ 313,277
Ratio of allowance for loan losses to total loans | 0.75% |  | 0.75% |  | 0.77%
Commercial real estate loans | Commercial real estate, owner-occupied | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 1,153 |  | 1,153 |  | 1,187
Commercial real estate loans | Commercial real estate, investor |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 7,721 | 7,390 | 7,703 | 6,475 |
Provision for loan losses | 211 | 46 | 217 | 961 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 12 | 0 |
Ending balance | 7,932 | 7,436 | 7,932 | 7,436 |
Ending ALLL related to loans collectively evaluated for impairment | 7,887 |  | 7,887 |  | 7,658
Ending ALLL related to loans individually evaluated for impairment | 45 |  | 45 |  | 45
Ending ALLL | 7,932 |  | 7,932 |  | 7,703
Collectively evaluated for impairment | 893,452 |  | 893,452 |  | 870,778
Individually evaluated for impairment | 1,786 |  | 1,786 |  | 1,821
Total loans | $ 896,066 |  | $ 896,066 |  | $ 873,410
Ratio of allowance for loan losses to total loans | 0.89% |  | 0.89% |  | 0.88%
Commercial real estate loans | Commercial real estate, investor | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 828 |  | 828 |  | 811
Commercial real estate loans | Construction |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 619 | 508 | 756 | 681 |
Provision for loan losses | (117) | 157 | (254) | (16) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 502 | 665 | 502 | 665 |
Ending ALLL related to loans collectively evaluated for impairment | 490 |  | 490 |  | 756
Ending ALLL related to loans individually evaluated for impairment | 12 |  | 12 |  | 0
Ending ALLL | 502 |  | 502 |  | 756
Collectively evaluated for impairment | 49,374 |  | 49,374 |  | 73,735
Individually evaluated for impairment | 880 |  | 880 |  | 2,688
Total loans | $ 50,254 |  | $ 50,254 |  | $ 76,423
Ratio of allowance for loan losses to total loans | 1.00% |  | 1.00% |  | 0.99%
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 | 907 | 952 | 915 | 1,031 |
Provision for loan losses | (28) | (39) | (36) | (118) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 879 | 913 | 879 | 913 |
Ending ALLL related to loans collectively evaluated for impairment | 874 |  | 874 |  | 910
Ending ALLL related to loans individually evaluated for impairment | 5 |  | 5 |  | 5
Ending ALLL | 879 |  | 879 |  | 915
Collectively evaluated for impairment | 121,321 |  | 121,321 |  | 124,049
Individually evaluated for impairment | 419 |  | 419 |  | 564
Total loans | $ 121,814 |  | $ 121,814 |  | $ 124,696
Ratio of allowance for loan losses to total loans | 0.72% |  | 0.72% |  | 0.73%
Allowance for loan losses to non-accrual loans | 526.00% |  | 526.00% |  | 292.00%
Residential loans | Home equity | Purchased credit-impaired |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Ending ALLL | $ 0 |  | $ 0 |  | $ 0
Purchased credit-impaired | 74 |  | 74 |  | 83
Residential loans | Other residential |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Beginning balance | 849 | 746 | 800 | 536 |
Provision for loan losses | 56 | 35 | 105 | 245 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 905 | 781 | 905 | 781 |
Ending ALLL related to loans collectively evaluated for impairment | 905 |  | 905 |  | 800
Ending ALLL related to loans individually evaluated for impairment | 0 |  | 0 |  | 0
Ending ALLL | 905 |  | 905 |  | 800
Collectively evaluated for impairment | 130,327 |  | 130,327 |  | 117,385
Individually evaluated for impairment | 454 |  | 454 |  | 462
Total loans | $ 130,781 |  | $ 130,781 |  | $ 117,847
Ratio of allowance for loan losses to total loans | 0.69% |  | 0.69% |  | 0.68%
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 | 323 | 325 | 310 | 378 |
Provision for loan losses | (28) | 5 | (15) | (88) |
Charge-offs | 0 | 0 | 0 | (2) |
Recoveries | 0 | 0 | 0 | 42 |
Ending balance | 295 | 330 | 295 | 330 |
Ending ALLL related to loans collectively evaluated for impairment | 236 |  | 236 |  | 237
Ending ALLL related to loans individually evaluated for impairment | 59 |  | 59 |  | 73
Ending ALLL | 295 |  | 295 |  | 310
Collectively evaluated for impairment | 27,808 |  | 27,808 |  | 26,787
Individually evaluated for impairment | 653 |  | 653 |  | 685
Total loans | $ 28,461 |  | $ 28,461 |  | $ 27,472
Ratio of allowance for loan losses to total loans | 1.04% |  | 1.04% |  | 1.13%
Allowance for loan losses to non-accrual loans | 492.00% |  | 492.00% |  |
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 | 727 | 956 | 494 | 718 |
Provision for loan losses | (41) | (42) | 192 | 196 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Ending balance | 686 | $ 914 | 686 | $ 914 |
Ending ALLL related to loans collectively evaluated for impairment | 686 |  | 686 |  | 494
Ending ALLL related to loans individually evaluated for impairment | 0 |  | 0 |  | 0
Ending ALLL | 686 |  | 686 |  | 494
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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