Loans - Loan Receivables on Nonaccrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Loans [Abstract]
Nonaccrual With a related allowance	$ 2,134	$ 5,648
Nonaccrual Without a related allowance	18,390	20,053
90 days or greater past due and accruing	37	276
Total non-performing loans	20,561	25,977
Real Estate Loans [Member] \| Mortgages [Member]
Loans [Abstract]
Nonaccrual With a related allowance	450	165
Nonaccrual Without a related allowance	3,511	2,541
90 days or greater past due and accruing	0	0
Total non-performing loans	3,961	2,706
Real Estate Loans [Member] \| Home Equity [Member]
Loans [Abstract]
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	62	165
90 days or greater past due and accruing	3	0
Total non-performing loans	65	165
Real Estate Loans [Member] \| Commercial [Member]
Loans [Abstract]
Nonaccrual With a related allowance	109	2,099
Nonaccrual Without a related allowance	9,402	12,265
90 days or greater past due and accruing	3	0
Total non-performing loans	9,514	14,364
Real Estate Loans [Member] \| Agricultural [Member]
Loans [Abstract]
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	2,151	4,062
90 days or greater past due and accruing	0	269
Total non-performing loans	2,151	4,331
Real Estate Loans [Member] \| Construction [Member]
Loans [Abstract]
Nonaccrual With a related allowance	239	0
Nonaccrual Without a related allowance	1,313	283
90 days or greater past due and accruing	0	0
Total non-performing loans	1,552	283
Consumer [Member]
Loans [Abstract]
Nonaccrual With a related allowance	778	1,002
Nonaccrual Without a related allowance	0	0
90 days or greater past due and accruing	14	7
Total non-performing loans	792	1,009
Other Commercial Loans [Member]
Loans [Abstract]
Nonaccrual With a related allowance	558	2,382
Nonaccrual Without a related allowance	1,548	200
90 days or greater past due and accruing	17	0
Total non-performing loans	2,123	2,582
Other Agricultural Loans [Member]
Loans [Abstract]
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	403	537
90 days or greater past due and accruing	0	0
Total non-performing loans	$ 403	$ 537

Amount of financing receivable on nonaccrual status with allowance for credit loss.

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Recorded investment in financing receivables that are past due and are not performing as per the loan agreement at the balance sheet date.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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