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Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 1,755	$ 5,602
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	193	242
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	23	27
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	663	1,068
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	0	0
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	0	0
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	572	3,808
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	304	457
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 0	$ 0

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
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-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
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