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Loans - Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Schedule of Financing Receivables [Line Items]
Loans	$ 1,857,975	$ 1,647,649	$ 1,617,212
Percentage of loans receivable, by type	100.00%	100.00%	100.00%
Commercial |    Real estate
Schedule of Financing Receivables [Line Items]
Loans	$ 638,708	$ 576,198	$ 550,077
Percentage of loans receivable, by type	34.50%	35.00%	34.00%
Commercial |    Construction
Schedule of Financing Receivables [Line Items]
Loans	$ 129,036	$ 79,365	$ 73,302
Percentage of loans receivable, by type	6.90%	4.80%	4.60%
Commercial |    Other
Schedule of Financing Receivables [Line Items]
Loans	$ 310,110	$ 264,570	$ 288,121
Percentage of loans receivable, by type	16.70%	16.10%	17.80%
Municipal
Schedule of Financing Receivables [Line Items]
Loans	$ 48,702	$ 48,362	$ 40,616
Percentage of loans receivable, by type	2.60%	2.90%	2.50%
Residential |    Construction
Schedule of Financing Receivables [Line Items]
Loans	$ 41,631	$ 31,763	$ 29,358
Percentage of loans receivable, by type	2.20%	1.90%	1.80%
Residential |    Term
Schedule of Financing Receivables [Line Items]
Loans	$ 595,031	$ 550,783	$ 537,811
Percentage of loans receivable, by type	32.00%	33.40%	33.30%
Home equity line of credit
Schedule of Financing Receivables [Line Items]
Loans	$ 73,938	$ 73,632	$ 74,594
Percentage of loans receivable, by type	4.00%	4.50%	4.60%
Consumer
Schedule of Financing Receivables [Line Items]
Loans	$ 20,819	$ 22,976	$ 23,333
Percentage of loans receivable, by type	1.10%	1.40%	1.40%

X

- Definition

Reflects the break down of the gross carrying amount of all categories of loans and leases held in the portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases as a percentage of total portfolio.

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3B
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

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