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Loans - Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,914,674	$ 1,647,649	$ 1,476,761
Percentage of loans receivable, by type	100.00%	100.00%
Commercial | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 699,340	$ 576,198	442,121
Percentage of loans receivable, by type	36.50%	35.00%
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 93,907	$ 79,365	56,565
Percentage of loans receivable, by type	4.90%	4.80%
Commercial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 319,359	$ 264,570	285,015
Percentage of loans receivable, by type	16.70%	16.10%
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 40,619	$ 48,362	43,783
Percentage of loans receivable, by type	2.10%	2.90%
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 49,907	$ 31,763	21,600
Percentage of loans receivable, by type	2.60%	1.90%
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 613,919	$ 550,783	522,070
Percentage of loans receivable, by type	32.10%	33.40%
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 76,560	$ 73,632	79,750
Percentage of loans receivable, by type	4.00%	4.50%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 21,063	$ 22,976	$ 25,857
Percentage of loans receivable, by type	1.10%	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.

+ References

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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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