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Loans - TDRs by Class and Specific Reserve (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 76 | 62
Balance | $ 25,222 | $ 17,801
Specific Reserves | $ 1,568 | $ 323
Commercial | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 17 | 8
Balance | $ 8,631 | $ 7,038
Specific Reserves | $ 132 | $ 90
Commercial | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 1 | 1
Balance | $ 721 | $ 741
Specific Reserves | $ 0 | $ 0
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 10 | 4
Balance | $ 7,298 | $ 561
Specific Reserves | $ 1,276 | $ 0
Municipal |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 0 | 0
Balance | $ 0 | $ 0
Specific Reserves | $ 0 | $ 0
Residential | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 0 | 0
Balance | $ 0 | $ 0
Specific Reserves | $ 0 | $ 0
Residential | Term |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 45 | 46
Balance | $ 8,074 | $ 8,948
Specific Reserves | $ 160 | $ 233
Home Equity LIne of Credit |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 3 | 3
Balance | $ 498 | $ 513
Specific Reserves | $ 0 | $ 0
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | loan | 0 | 0
Balance | $ 0 | $ 0
Specific Reserves | $ 0 | $ 0

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