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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | $ 15,767 | $ 15,442
Provision (reversal) | 0 | 500
Charge-offs | (5) | (293)
Recoveries | 59 | 118
Ending balance | 15,821 | 15,767
Ending ALLL related to loans collectively evaluated for impairment | 15,043 | 15,254
Ending ALLL related to loans individually evaluated for impairment | 778 | 513
Ending ALLL related to purchased credit-impaired loans | 15,821 | 15,767
Recorded Investment: |  |
Collectively evaluated for impairment | 1,746,714 | 1,659,972
Individually evaluated for impairment | 15,038 | 16,926
Total loans | $ 1,763,864 | $ 1,679,013
Ratio of allowance for loan losses to total loans | 0.90% | 0.94%
Allowance for loan losses to non-accrual loans | 2270.00% | 3883.00%
Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 2,112 | 2,115
Commercial | Commercial and industrial |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 3,654 | 3,248
Provision (reversal) | (1,232) | 584
Charge-offs | (3) | (289)
Recoveries | 17 | 111
Ending balance | 2,436 | 3,654
Ending ALLL related to loans collectively evaluated for impairment | 1,970 | 3,604
Ending ALLL related to loans individually evaluated for impairment | 466 | 50
Ending ALLL related to purchased credit-impaired loans | 2,436 | 3,654
Recorded Investment: |  |
Collectively evaluated for impairment | 228,883 | 233,605
Individually evaluated for impairment | 1,825 | 2,165
Total loans | $ 230,739 | $ 235,835
Ratio of allowance for loan losses to total loans | 1.06% | 1.55%
Commercial | Commercial and industrial | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 31 | 65
Commercial real estate | Commercial real estate, owner-occupied |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 2,294 | 1,753
Provision (reversal) | 113 | 541
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 2,407 | 2,294
Ending ALLL related to loans collectively evaluated for impairment | 2,218 | 2,106
Ending ALLL related to loans individually evaluated for impairment | 189 | 188
Ending ALLL related to purchased credit-impaired loans | 2,407 | 2,294
Recorded Investment: |  |
Collectively evaluated for impairment | 305,097 | 292,798
Individually evaluated for impairment | 6,993 | 6,999
Total loans | $ 313,277 | $ 300,963
Ratio of allowance for loan losses to total loans | 0.77% | 0.76%
Commercial real estate | Commercial real estate, owner-occupied | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 1,187 | 1,166
Commercial real estate | Commercial real estate, investor |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 6,475 | 6,320
Provision (reversal) | 1,228 | 155
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 7,703 | 6,475
Ending ALLL related to loans collectively evaluated for impairment | 7,658 | 6,316
Ending ALLL related to loans individually evaluated for impairment | 45 | 159
Ending ALLL related to purchased credit-impaired loans | 7,703 | 6,475
Recorded Investment: |  |
Collectively evaluated for impairment | 870,778 | 820,023
Individually evaluated for impairment | 1,821 | 2,171
Total loans | $ 873,410 | $ 822,984
Ratio of allowance for loan losses to total loans | 0.88% | 0.79%
Commercial real estate | Commercial real estate, investor | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 811 | 790
Commercial real estate | Construction |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 681 | 781
Provision (reversal) | 75 | (100)
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 756 | 681
Ending ALLL related to loans collectively evaluated for impairment | 756 | 674
Ending ALLL related to loans individually evaluated for impairment | 0 | 7
Ending ALLL related to purchased credit-impaired loans | 756 | 681
Recorded Investment: |  |
Collectively evaluated for impairment | 73,735 | 60,859
Individually evaluated for impairment | 2,688 | 2,969
Total loans | $ 76,423 | $ 63,828
Ratio of allowance for loan losses to total loans | 0.99% | 1.07%
Commercial real estate | Construction | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 0 | 0
Residential loans | Home equity |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 1,031 | 973
Provision (reversal) | (116) | 58
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 915 | 1,031
Ending ALLL related to loans collectively evaluated for impairment | 910 | 1,025
Ending ALLL related to loans individually evaluated for impairment | 5 | 6
Ending ALLL related to purchased credit-impaired loans | 915 | 1,031
Recorded Investment: |  |
Collectively evaluated for impairment | 124,049 | 131,620
Individually evaluated for impairment | 564 | 753
Total loans | $ 124,696 | $ 132,467
Ratio of allowance for loan losses to total loans | 0.73% | 0.78%
Allowance for loan losses to non-accrual loans | 292.00% | 254.00%
Residential loans | Home equity | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 83 | 94
Residential loans | Other residential |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 536 | 454
Provision (reversal) | 264 | 82
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 800 | 536
Ending ALLL related to loans collectively evaluated for impairment | 800 | 535
Ending ALLL related to loans individually evaluated for impairment | 0 | 1
Ending ALLL related to purchased credit-impaired loans | 800 | 536
Recorded Investment: |  |
Collectively evaluated for impairment | 117,385 | 94,378
Individually evaluated for impairment | 462 | 1,148
Total loans | $ 117,847 | $ 95,526
Ratio of allowance for loan losses to total loans | 0.68% | 0.56%
Residential loans | Other residential | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 0 | 0
Consumer loans | Installment and other consumer |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 378 | 372
Provision (reversal) | (108) | 3
Charge-offs | (2) | (4)
Recoveries | 42 | 7
Ending balance | 310 | 378
Ending ALLL related to loans collectively evaluated for impairment | 237 | 276
Ending ALLL related to loans individually evaluated for impairment | 73 | 102
Ending ALLL related to purchased credit-impaired loans | 310 | 378
Recorded Investment: |  |
Collectively evaluated for impairment | 26,787 | 26,689
Individually evaluated for impairment | 685 | 721
Total loans | $ 27,472 | $ 27,410
Ratio of allowance for loan losses to total loans | 1.13% | 1.38%
Consumer loans | Installment and other consumer | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | $ 0 | $ 0
Recorded Investment: |  |
Purchased credit-impaired | 0 | 0
Unallocated |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Beginning balance | 718 | 1,541
Provision (reversal) | (224) | (823)
Charge-offs | 0 | 0
Recoveries | 0 | 0
Ending balance | 494 | 718
Ending ALLL related to loans collectively evaluated for impairment | 494 | 718
Ending ALLL related to loans individually evaluated for impairment | 0 | 0
Ending ALLL related to purchased credit-impaired loans | 494 | 718
Recorded Investment: |  |
Collectively evaluated for impairment | 0 | 0
Individually evaluated for impairment | 0 | 0
Total loans | 0 | 0
Unallocated | Purchased credit-impaired |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Ending ALLL related to purchased credit-impaired loans | 0 | 0
Recorded Investment: |  |
Purchased credit-impaired | $ 0 | $ 0

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- Definition Allowance as percentage of non-accrual loans. + References No definition available. + Details
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- Definition Allowance as percentage of total loans. + References No definition available. + Details
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