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Loans - Summary of Impaired Loans by Loan Portfolio Class (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | $ 1,119 | $ 65
Impaired Loans with Allowance: Unpaid Principal Balance | 1,119 | 65
Impaired Loans with Allowance: Related Allowance | 78 | 42
Impaired Loans with No Allowance: Recorded Investment | 7,465 | 7,637
Impaired Loans with No Allowance: Unpaid Principal Balance | 7,465 | 7,637
Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 58 | 65
Impaired Loans with Allowance: Unpaid Principal Balance | 58 | 65
Impaired Loans with Allowance: Related Allowance | 36 | 42
Impaired Loans with No Allowance: Recorded Investment | 0 | 0
Impaired Loans with No Allowance: Unpaid Principal Balance | 0 | 0
Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 1,061 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 1,061 | 0
Impaired Loans with Allowance: Related Allowance | 42 | 0
Impaired Loans with No Allowance: Recorded Investment | 7,296 | 7,383
Impaired Loans with No Allowance: Unpaid Principal Balance | 7,296 | 7,383
Commercial real estate construction |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 0 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 0 | 0
Impaired Loans with Allowance: Related Allowance | 0 | 0
Impaired Loans with No Allowance: Recorded Investment | 0 | 0
Impaired Loans with No Allowance: Unpaid Principal Balance | 0 | 0
Residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 0 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 0 | 0
Impaired Loans with Allowance: Related Allowance | 0 | 0
Impaired Loans with No Allowance: Recorded Investment | 101 | 171
Impaired Loans with No Allowance: Unpaid Principal Balance | 101 | 171
Home equity lines of credit |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 0 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 0 | 0
Impaired Loans with Allowance: Related Allowance | 0 | 0
Impaired Loans with No Allowance: Recorded Investment | 68 | 83
Impaired Loans with No Allowance: Unpaid Principal Balance | $ 68 | $ 83

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