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Loans and Allowance for Loan and Lease Losses - Impaired Loans by Loan Portfolio Class (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Commercial portfolio | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | $ 1,309 | $ 308
Impaired Loans with Allowance: Unpaid Principal Balance | 1,781 | 339
Impaired Loans with Allowance: Related Allowance | 831 | 67
Impaired Loans: Total Recorded Investment | 1,309 | 308
Impaired Loans: Total Unpaid Principal Balance | 1,799 | 370
Commercial portfolio | Commercial and industrial | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 0 | 0
Impaired Loans with No Allowance: Unpaid Principal Balance | 18 | 31
Commercial portfolio | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 112 | 287
Impaired Loans with Allowance: Unpaid Principal Balance | 112 | 359
Impaired Loans with Allowance: Related Allowance | 28 | 121
Impaired Loans: Total Recorded Investment | 2,077 | 3,372
Impaired Loans: Total Unpaid Principal Balance | 3,235 | 4,511
Commercial portfolio | Commercial real estate | With no related allowance recorded and acquired with credit deterioration: |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 1,364 | 2,231
Impaired Loans with No Allowance: Unpaid Principal Balance | 2,101 | 2,909
Commercial portfolio | Commercial real estate | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 601 | 854
Impaired Loans with No Allowance: Unpaid Principal Balance | 1,022 | 1,243
Commercial portfolio | Commercial real estate - construction |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Related Allowance | 0 | 0
Impaired Loans: Total Recorded Investment | 1,222 | 1,218
Impaired Loans: Total Unpaid Principal Balance | 1,465 | 1,496
Commercial portfolio | Commercial real estate - construction | With no related allowance recorded and acquired with credit deterioration: |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 1,222 | 1,196
Impaired Loans with No Allowance: Unpaid Principal Balance | 1,461 | 1,469
Commercial portfolio | Commercial real estate - construction | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 0 | 22
Impaired Loans with No Allowance: Unpaid Principal Balance | 4 | 27
Consumer | Residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 96 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 96 | 0
Impaired Loans with Allowance: Related Allowance | 6 | 0
Impaired Loans: Total Recorded Investment | 2,541 | 2,621
Impaired Loans: Total Unpaid Principal Balance | 3,173 | 3,142
Consumer | Residential mortgage | With no related allowance recorded and acquired with credit deterioration: |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 1,149 | 1,362
Impaired Loans with No Allowance: Unpaid Principal Balance | 1,708 | 1,847
Consumer | Residential mortgage | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 1,296 | 1,259
Impaired Loans with No Allowance: Unpaid Principal Balance | 1,369 | 1,295
Consumer | Home equity |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with Allowance: Recorded Investment | 252 | 0
Impaired Loans with Allowance: Unpaid Principal Balance | 252 | 0
Impaired Loans with Allowance: Related Allowance | 45 | 0
Impaired Loans: Total Recorded Investment | 366 | 2,463
Impaired Loans: Total Unpaid Principal Balance | 387 | 2,488
Consumer | Home equity | With no related allowance recorded and acquired with credit deterioration: |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 83 | 86
Impaired Loans with No Allowance: Unpaid Principal Balance | 104 | 111
Consumer | Home equity | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Impaired [Line Items] |  |
Impaired Loans with No Allowance: Recorded Investment | 31 | 2,377
Impaired Loans with No Allowance: Unpaid Principal Balance | $ 31 | $ 2,377

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