Loans and Leases, Troubled Debt Restructured Loans (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) Contract	Mar. 31, 2021 Contract	Dec. 31, 2021 USD ($)
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	$ 1,603		$ 2,322
Number of TDRs during period | Contract	0	0
Accrual TDRs [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	$ 1,603		1,824
Accrual TDRs [Member] | Real Estate [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	1,347		1,563
Accrual TDRs [Member] | Commercial [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		41
Accrual TDRs [Member] | Agricultural [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Accrual TDRs [Member] | Residential and Home Equity [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	1,347		1,522
Accrual TDRs [Member] | Construction [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Accrual TDRs [Member] | Commercial and Industrial [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	255		260
Accrual TDRs [Member] | Agricultural [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Accrual TDRs [Member] | Commercial Leases [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Accrual TDRs [Member] | Consumer and Other [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	1		1
Nonaccrual TDRs [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		498
Nonaccrual TDRs [Member] | Real Estate [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Commercial [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Agricultural [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Residential and Home Equity [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Construction [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Commercial and Industrial [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Agricultural [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		498
Nonaccrual TDRs [Member] | Commercial Leases [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	0		0
Nonaccrual TDRs [Member] | Consumer and Other [Member]
Troubled Debt Restructuring Loans [Abstract]
TDR loans and leases	$ 0		$ 0