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Loans and Allowance for Credit Losses - Aging Analysis of Loans by Loan Category (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans		$ 1,410,653	$ 1,189,782
Loans, 90 Days Past Due and Accruing		0	0
Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans		49,210	64,159
Loans, 90 Days Past Due and Accruing		0	0
Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans		229,915	210,210
Loans, 90 Days Past Due and Accruing		0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		36,541	39,808
Loans, 90 Days Past Due and Accruing		0	0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		786,921	630,953
Loans, 90 Days Past Due and Accruing		0	0
Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans		20,936	14,736
Loans, 90 Days Past Due and Accruing		0	0
Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		267,730	229,916
Loans, 90 Days Past Due and Accruing		0	0
Loans To Other Financial Institutions [Member]
Financing Receivable, Past Due [Line Items]
Loans		19,400	0
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	959	721
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	171
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	31	7
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	173	0
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	755	0
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	551	178
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	2	39
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	549	682
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	871	842
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	1	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	870	842
Financial Asset, Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	2,381	1,741
Financial Asset, Past Due [Member] | Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	1	171
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	33	46
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	173	0
Financial Asset, Past Due [Member] | Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	0	0
Financial Asset, Past Due [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans	[1]	2,174	1,524
Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans		1,408,272	1,188,041
Financial Asset, Not Past Due [Member] | Agricultural [Member]
Financing Receivable, Past Due [Line Items]
Loans		49,210	64,159
Financial Asset, Not Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans		229,914	210,039
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		36,508	39,762
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		786,748	630,953
Financial Asset, Not Past Due [Member] | Construction Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Loans		20,936	14,736
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Loans		265,556	$ 228,392
Financial Asset, Not Past Due [Member] | Loans To Other Financial Institutions [Member]
Financing Receivable, Past Due [Line Items]
Loans		$ 19,400
[1] Includes nonaccrual loans

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