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Loans and Leases - Nonaccrual Loans (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	$ 14,788,000	$ 15,101,000
Nonaccrual Loans and Leases	25,200,000	26,033,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Interest on nonaccrual loans	0
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	454,000	502,000
Nonaccrual Loans and Leases	806,000	533,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Commercial and industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	454,000	502,000
Nonaccrual Loans and Leases	806,000	533,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	12,504,000	13,502,000
Nonaccrual Loans and Leases	13,623,000	13,893,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Commercial real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	658,000	671,000
Nonaccrual Loans and Leases	318,000	671,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Commercial real estate | Agriculture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL		348,000
Nonaccrual Loans and Leases		456,000
Loans and Leases Past Due Over 89 Days and Accruing		0
Commercial real estate | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	11,846,000	12,483,000
Nonaccrual Loans and Leases	13,305,000	12,766,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	1,830,000	1,096,000
Nonaccrual Loans and Leases	10,200,000	11,178,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Residential real estate | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	574,000	380,000
Nonaccrual Loans and Leases	2,215,000	2,459,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Residential real estate | Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	1,256,000	716,000
Nonaccrual Loans and Leases	7,985,000	8,719,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	0	1,000
Nonaccrual Loans and Leases	571,000	429,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Consumer and other | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	0	0
Nonaccrual Loans and Leases	316,000	183,000
Loans and Leases Past Due Over 89 Days and Accruing	0	0
Consumer and other | Indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans and Leases with no ACL	0	1,000
Nonaccrual Loans and Leases	255,000	246,000
Loans and Leases Past Due Over 89 Days and Accruing	$ 0	$ 0

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