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Loans and ACL (Summary of Nonaccrual Loans With No ACL) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 520	$ 457
Financing Receivable, Nonaccrual, No Allowance	520	437
Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	17	22
Financing Receivable, Nonaccrual, No Allowance	17	22
Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	0	74
Financing Receivable, Nonaccrual, No Allowance	0	74
Agricultural Mortgage, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	41	67
Financing Receivable, Nonaccrual, No Allowance	41	67
Agricultural Other Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	167	167
Financing Receivable, Nonaccrual, No Allowance	167	167
Residential, Senior Liens, Financing Receivable [Member]
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	295	127
Financing Receivable, Nonaccrual, No Allowance	$ 295	$ 107

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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- Definition

Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-7

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