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Loans - Past-due Status of Loans by Class (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | --- | ---
Schedule of Financing Receivables [Line Items] |  |  |
Loans | $ 1,617,212 | $ 1,476,761 | $ 1,436,646
90+ Days & Accruing | 229 | 1,505 | 1,494
30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 1,028 | 2,916 | 6,581
60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 1,519 | 2,417 | 766
90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 1,571 | 4,389 | 5,429
All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 4,118 | 9,722 | 12,776
Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 1,613,094 | 1,467,039 | 1,423,870
Commercial | Real estate |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 550,077 | 442,121 | 407,128
90+ Days & Accruing | 36 | 0 | 0
Commercial | Real estate | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 33 | 139 | 2,397
Commercial | Real estate | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 190 | 58
Commercial | Real estate | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 226 | 226 | 454
Commercial | Real estate | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 259 | 555 | 2,909
Commercial | Real estate | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 549,818 | 441,566 | 404,219
Commercial | Construction |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 73,302 | 56,565 | 52,038
90+ Days & Accruing | 0 | 0 | 0
Commercial | Construction | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 13 | 13 | 0
Commercial | Construction | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 15 | 0 | 0
Commercial | Construction | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 80 | 80
Commercial | Construction | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 28 | 93 | 80
Commercial | Construction | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 73,274 | 56,472 | 51,958
Commercial | Other |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 288,121 | 285,015 | 309,297
90+ Days & Accruing | 0 | 1,464 | 1,464
Commercial | Other | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 92 | 490 | 547
Commercial | Other | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 359 | 62 | 258
Commercial | Other | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 225 | 2,082 | 1,871
Commercial | Other | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 676 | 2,634 | 2,676
Commercial | Other | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 287,445 | 282,381 | 306,621
Municipal |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 40,616 | 43,783 | 44,110
90+ Days & Accruing | 0 | 0 | 0
Municipal | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Municipal | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Municipal | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Municipal | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Municipal | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 40,616 | 43,783 | 44,110
Residential | Construction |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 29,358 | 21,600 | 16,101
90+ Days & Accruing | 0 | 0 | 0
Residential | Construction | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Residential | Construction | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Residential | Construction | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Residential | Construction | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 0 | 0 | 0
Residential | Construction | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 29,358 | 21,600 | 16,101
Residential | Term |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 537,811 | 522,070 | 497,667
90+ Days & Accruing | 190 | 23 | 0
Residential | Term | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 549 | 540 | 2,550
Residential | Term | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 918 | 1,799 | 357
Residential | Term | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 986 | 1,616 | 1,602
Residential | Term | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 2,453 | 3,955 | 4,509
Residential | Term | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 535,358 | 518,115 | 493,158
Home equity line of credit |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 74,594 | 79,750 | 82,982
90+ Days & Accruing | 0 | 0 | 0
Home equity line of credit | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 251 | 1,645 | 868
Home equity line of credit | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 25 | 324 | 65
Home equity line of credit | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 131 | 367 | 1,392
Home equity line of credit | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 407 | 2,336 | 2,325
Home equity line of credit | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 74,187 | 77,414 | 80,657
Consumer |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 23,333 | 25,857 | 27,323
90+ Days & Accruing | 3 | 18 | 30
Consumer | 30-59 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 90 | 89 | 219
Consumer | 60-89 Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 202 | 42 | 28
Consumer | 90+ Days Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 3 | 18 | 30
Consumer | All Past Due |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | 295 | 149 | 277
Consumer | Current |  |  |
Schedule of Financing Receivables [Line Items] |  |  |
Loans | $ 23,038 | $ 25,708 | $ 27,046

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