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Loans and Allowance for Credit Losses - Nonaccrual Loans by Loan Category (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	$ 1,997	$ 806
Total nonaccrual loans	17,391	3,704
Interest income recognized during the period on nonaccrual loans	120	81
Agricultural [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	0	0
Total nonaccrual loans	0	0
Interest income recognized during the period on nonaccrual loans	0	0
Commercial and Industrial [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	17	0
Total nonaccrual loans	7,412	0
Interest income recognized during the period on nonaccrual loans	26	0
Consumer Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	0	0
Total nonaccrual loans	49	8
Interest income recognized during the period on nonaccrual loans	2	1
Construction Real Estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	0	0
Total nonaccrual loans	110	229
Interest income recognized during the period on nonaccrual loans	4	9
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	761	0
Total nonaccrual loans	1,077	0
Interest income recognized during the period on nonaccrual loans	9	0
Residential Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans with no ACL	1,219	806
Total nonaccrual loans	8,743	3,467
Interest income recognized during the period on nonaccrual loans	$ 79	$ 71

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