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Loans - Schedule of Allowance for Loan Losses and Recorded Investment in Financing Receivables (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | $ 13,143 | $ 14,148 | $ 13,976 | $ 14,194 |  |  |
Charge-offs | (62) | (102) | (1,499) | (272) |  |  |
Recoveries | 133 | 59 | 167 | 183 |  |  |
Provisions | 200 | 0 | 770 | 0 |  |  |
Allowance for Loan Losses, Ending Balance | 13,414 | 14,105 | 13,414 | 14,105 |  |  |
Allowance for Loan Losses, Ending Balance | 13,143 | 14,148 | 13,976 | 14,194 | $ 13,414 | $ 13,976 | $ 14,105
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 148 | 1,229 | 1,192
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 13,266 | 12,747 | 12,913
Total Loans Receivable |  |  |  |  | 1,272,446 | 1,244,170 | 1,236,370
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 7,869 | 10,337 | 10,634
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 1,264,577 | 1,233,833 | 1,225,736
Commercial and Industrial |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 2,433 | 3,246 | 3,219 | 3,055 |  |  |
Charge-offs | (33) | (60) | (911) | (129) |  |  |
Recoveries | 22 | 8 | 33 | 17 |  |  |
Provisions | 185 | 73 | 266 | 324 |  |  |
Allowance for Loan Losses, Ending Balance | 2,607 | 3,267 | 2,607 | 3,267 |  |  |
Allowance for Loan Losses, Ending Balance | 2,433 | 3,246 | 3,219 | 3,055 | 2,607 | 3,219 | 3,267
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 792 | 698
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 2,607 | 2,427 | 2,569
Total Loans Receivable |  |  |  |  | 176,073 | 165,829 | 169,037
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 1,499 | 1,743
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 176,073 | 164,330 | 167,294
Commercial Real Estate |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 5,721 | 5,210 | 5,228 | 4,968 |  |  |
Charge-offs | 0 | 0 | (33) | 0 |  |  |
Recoveries | 0 | 0 | 0 | 61 |  |  |
Provisions | 123 | 195 | 649 | 376 |  |  |
Allowance for Loan Losses, Ending Balance | 5,844 | 5,405 | 5,844 | 5,405 |  |  |
Allowance for Loan Losses, Ending Balance | 5,721 | 5,210 | 5,228 | 4,968 | 5,844 | 5,228 | 5,405
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 60 | 117
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 5,844 | 5,168 | 5,288
Total Loans Receivable |  |  |  |  | 522,834 | 492,759 | 483,673
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 7,188 | 8,360 | 8,413
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 515,646 | 484,399 | 475,260
Commercial Real Estate Construction |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 146 | 135 | 126 | 147 |  |  |
Charge-offs | 0 | 0 | 0 | 0 |  |  |
Recoveries | 103 | 40 | 103 | 40 |  |  |
Provisions | (50) | (31) | (30) | (43) |  |  |
Allowance for Loan Losses, Ending Balance | 199 | 144 | 199 | 144 |  |  |
Allowance for Loan Losses, Ending Balance | 146 | 135 | 126 | 147 | 199 | 126 | 144
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 199 | 126 | 144
Total Loans Receivable |  |  |  |  | 18,720 | 35,560 | 39,779
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 18,720 | 35,560 | 39,779
Residential Mortgage |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 2,840 | 3,368 | 3,226 | 3,478 |  |  |
Charge-offs | 0 | (15) | (489) | (32) |  |  |
Recoveries | 8 | 10 | 30 | 52 |  |  |
Provisions | (95) | (101) | (14) | (236) |  |  |
Allowance for Loan Losses, Ending Balance | 2,753 | 3,262 | 2,753 | 3,262 |  |  |
Allowance for Loan Losses, Ending Balance | 2,840 | 3,368 | 3,226 | 3,478 | 2,753 | 3,226 | 3,262
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 377 | 377
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 2,753 | 2,849 | 2,885
Total Loans Receivable |  |  |  |  | 433,535 | 425,893 | 421,732
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 533 | 478 | 478
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 433,002 | 425,415 | 421,254
Home Equity Lines of Credit |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 564 | 607 | 612 | 648 |  |  |
Charge-offs | 0 | (9) | 0 | (9) |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |
Provisions | 131 | 29 | 83 | (12) |  |  |
Allowance for Loan Losses, Ending Balance | 695 | 627 | 695 | 627 |  |  |
Allowance for Loan Losses, Ending Balance | 564 | 607 | 612 | 648 | 695 | 612 | 627
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 148 | 0 | 0
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 547 | 612 | 627
Total Loans Receivable |  |  |  |  | 106,679 | 107,792 | 105,113
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 148 | 0 | 0
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 106,531 | 107,792 | 105,113
Consumer |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 673 | 815 | 749 | 923 |  |  |
Charge-offs | (29) | (18) | (66) | (102) |  |  |
Recoveries | 0 | 1 | 1 | 13 |  |  |
Provisions | (9) | 12 | (49) | (24) |  |  |
Allowance for Loan Losses, Ending Balance | 635 | 810 | 635 | 810 |  |  |
Allowance for Loan Losses, Ending Balance | 673 | 815 | 749 | 923 | 635 | 749 | 810
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 635 | 749 | 810
Total Loans Receivable |  |  |  |  | 14,605 | 16,337 | 17,036
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | 14,605 | 16,337 | 17,036
Unallocated |  |  |  |  |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |  |  |  |  |
Allowance for Loan Losses, Beginning Balance | 766 | 767 | 816 | 975 |  |  |
Charge-offs | 0 | 0 | 0 | 0 |  |  |
Recoveries | 0 | 0 | 0 | 0 |  |  |
Provisions | (85) | (177) | (135) | (385) |  |  |
Allowance for Loan Losses, Ending Balance | 681 | 590 | 681 | 590 |  |  |
Allowance for Loan Losses, Ending Balance | $ 766 | $ 767 | $ 816 | $ 975 | 681 | 816 | 590
Allowance for loan losses: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Allowance for loan losses: Ending balance: collectively evaluated for impairment |  |  |  |  | 681 | 816 | 590
Total Loans Receivable |  |  |  |  | 0 | 0 | 0
Loans receivables: Ending balance: individually evaluated for impairment |  |  |  |  | 0 | 0 | 0
Loans Receivable: Ending balance: collectively evaluated for impairment |  |  |  |  | $ 0 | $ 0 | $ 0

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- Definition Allowance for Loan Losses [Roll Forward] + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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