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Loans and ACL (Summary of Nonaccrual Loans With No ACL) (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	$ 488,000	$ 457,000
Financing Receivable, Nonaccrual, No Allowance	488,000	437,000
Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	20,000	22,000
Financing Receivable, Nonaccrual, No Allowance	20,000	22,000
Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	57,000	74,000
Financing Receivable, Nonaccrual, No Allowance	57,000	74,000
Agricultural Mortgage, Portfolio Segment
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	65,000	67,000
Financing Receivable, Nonaccrual, No Allowance	65,000	67,000
Agricultural Other Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	167,000	167,000
Financing Receivable, Nonaccrual, No Allowance	167,000	167,000
Residential, Senior Liens, Financing Receivable [Member]
Financing Receivable, Nonaccrual [Line Items]
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest	179,000	127,000
Financing Receivable, Nonaccrual, No Allowance	$ 179,000	$ 107,000

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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- Definition

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+ References

No definition available.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

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