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Loans - Schedule of Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | $ 1,279,264 | $ 1,302,465 | $ 1,246,798
Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,224,691 | 1,250,566 |
Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 41,000 | 36,588 |
Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 13,573 | 15,311 |
Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Commercial and industrial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 161,379 | 174,182 | 160,674
Commercial and industrial | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 157,302 | 170,838 |
Commercial and industrial | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 3,179 | 3,036 |
Commercial and industrial | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 898 | 308 |
Commercial and industrial | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Commercial real estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 552,731 | 548,923 | 514,519
Commercial real estate | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 515,964 | 514,308 |
Commercial real estate | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 27,324 | 23,191 |
Commercial real estate | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 9,443 | 11,424 |
Commercial real estate | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Commercial real estate construction |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 20,428 | 20,298 | 19,615
Commercial real estate construction | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 18,786 | 18,747 |
Commercial real estate construction | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,642 | 1,551 |
Commercial real estate construction | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Commercial real estate construction | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Residential mortgage |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 419,940 | 434,299 | 431,049
Residential mortgage | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 408,747 | 422,718 |
Residential mortgage | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 8,387 | 8,388 |
Residential mortgage | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 2,806 | 3,193 |
Residential mortgage | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Home equity lines of credit |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 110,585 | 110,363 | 106,089
Home equity lines of credit | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 109,691 | 109,555 |
Home equity lines of credit | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 468 | 422 |
Home equity lines of credit | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 426 | 386 |
Home equity lines of credit | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Consumer |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 14,201 | 14,400 | $ 14,852
Consumer | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 14,201 | 14,400 |
Consumer | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Consumer | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Consumer | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,089,733 | 1,099,568 |
Originated Loans | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,050,070 | 1,062,133 |
Originated Loans | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 31,127 | 28,642 |
Originated Loans | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 8,536 | 8,793 |
Originated Loans | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Commercial and industrial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 157,092 | 169,098 |
Originated Loans | Commercial and industrial | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 153,348 | 166,035 |
Originated Loans | Commercial and industrial | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 2,966 | 2,902 |
Originated Loans | Commercial and industrial | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 778 | 161 |
Originated Loans | Commercial and industrial | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Commercial real estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 429,125 | 419,965 |
Originated Loans | Commercial real estate | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 401,248 | 393,987 |
Originated Loans | Commercial real estate | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 20,413 | 18,079 |
Originated Loans | Commercial real estate | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 7,464 | 7,899 |
Originated Loans | Commercial real estate | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Commercial real estate construction |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 17,694 | 16,306 |
Originated Loans | Commercial real estate construction | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 16,753 | 15,471 |
Originated Loans | Commercial real estate construction | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 941 | 835 |
Originated Loans | Commercial real estate construction | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Commercial real estate construction | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Residential mortgage |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 378,685 | 388,750 |
Originated Loans | Residential mortgage | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 371,949 | 381,525 |
Originated Loans | Residential mortgage | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 6,442 | 6,492 |
Originated Loans | Residential mortgage | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 294 | 733 |
Originated Loans | Residential mortgage | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Home equity lines of credit |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 93,085 | 91,275 |
Originated Loans | Home equity lines of credit | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 92,720 | 90,941 |
Originated Loans | Home equity lines of credit | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 365 | 334 |
Originated Loans | Home equity lines of credit | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Home equity lines of credit | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Consumer |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 14,052 | 14,174 |
Originated Loans | Consumer | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 14,052 | 14,174 |
Originated Loans | Consumer | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Consumer | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Originated Loans | Consumer | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 189,531 | 202,897 |
Acquired Loans | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 174,621 | 188,433 |
Acquired Loans | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 9,873 | 7,946 |
Acquired Loans | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 5,037 | 6,518 |
Acquired Loans | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Commercial and industrial |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 4,287 | 5,084 |
Acquired Loans | Commercial and industrial | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 3,954 | 4,803 |
Acquired Loans | Commercial and industrial | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 213 | 134 |
Acquired Loans | Commercial and industrial | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 120 | 147 |
Acquired Loans | Commercial and industrial | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Commercial real estate |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 123,606 | 128,958 |
Acquired Loans | Commercial real estate | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 114,716 | 120,321 |
Acquired Loans | Commercial real estate | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 6,911 | 5,112 |
Acquired Loans | Commercial real estate | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,979 | 3,525 |
Acquired Loans | Commercial real estate | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Commercial real estate construction |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 2,734 | 3,992 |
Acquired Loans | Commercial real estate construction | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 2,033 | 3,276 |
Acquired Loans | Commercial real estate construction | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 701 | 716 |
Acquired Loans | Commercial real estate construction | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Commercial real estate construction | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Residential mortgage |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 41,255 | 45,549 |
Acquired Loans | Residential mortgage | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 36,798 | 41,193 |
Acquired Loans | Residential mortgage | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 1,945 | 1,896 |
Acquired Loans | Residential mortgage | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 2,512 | 2,460 |
Acquired Loans | Residential mortgage | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Home equity lines of credit |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 17,500 | 19,088 |
Acquired Loans | Home equity lines of credit | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 16,971 | 18,614 |
Acquired Loans | Home equity lines of credit | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 103 | 88 |
Acquired Loans | Home equity lines of credit | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 426 | 386 |
Acquired Loans | Home equity lines of credit | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Consumer |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 149 | 226 |
Acquired Loans | Consumer | Pass |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 149 | 226 |
Acquired Loans | Consumer | Special Mention |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Consumer | Substandard |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | 0 | 0 |
Acquired Loans | Consumer | Doubtful |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total | $ 0 | $ 0 |

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