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Loans and Leases and Allowance for Loan and Lease Losses (Narrative) (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) segment property contract	Dec. 31, 2021 USD ($) property	Dec. 31, 2020 USD ($)
Financing Receivable, Modifications [Line Items]
Number of loan portfolio segments | segment	6
Nonaccrual restructured loans	$ 2,808,000	$ 3,124,000
Number of loans modified as troubled debt restructurings with subsequent default	1	0
Allowance for loan losses	$ 23,300,000	$ 19,400,000
Commitments to extend credit	911,998,000	669,770,000
Loans and leases	3,253,627,000	2,693,397,000
Provision (recovery) charged to expense	$ 4,018,000	$ 1,633,000	$ 8,683,000
Percentage of allowance for credit losses to aggregate loans	0.72%	0.72%
Mortgage loans in process of foreclosure	$ 33,000	$ 0
Participating Mortgage Loans, Participation Liabilities, Amount	24,600,000	0
Other real estate owned	1,436,000	1,780,000
Related Party [Member]
Financing Receivable, Modifications [Line Items]
Commitments to extend credit	12,800,000
Trouble Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	101,000	206,000
Nonaccrual restructured loans	0	0
Purchased Credit Impaired Loans [Member]
Financing Receivable, Modifications [Line Items]
Allowance for loan losses	121,000	179,000
Loans and leases	$ 28,691,000	$ 41,347,000
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of loans modified as troubled debt restructurings with subsequent default | property	1
Number of properties in other real estate owned | property	1	0
Mortgage loans in process of foreclosure	$ 33,000
Other real estate owned	$ 281,000	$ 0

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Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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