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Risks and Uncertainties (Summary of Loan Forbearance) (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) loan
Risks And Uncertainties [Line Items]
Number of Loans | loan	1,215
Balance	$ 274,190,000
Residential Real Estate Loans [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	118
Balance	$ 10,883,000
Commercial Real Estate Loans [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	385
Balance	$ 218,984,000
Agricultural Real Estate Loans [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	16
Balance	$ 5,267,000
Construction Real Estate Loans [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	24
Balance	$ 4,125,000
Commercial [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	186
Balance	$ 23,801,000
Consumer Loans To Individuals [Member]
Risks And Uncertainties [Line Items]
Number of Loans | loan	486
Balance	$ 11,130,000
COVID [Member]
Risks And Uncertainties [Line Items]
Balance	$ 0

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