Loans and Allowance for Credit Losses - Nonaccrual Loans (Details) - USD ($)	Sep. 30, 2024	Jun. 30, 2024
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 8,206,000	$ 6,680,000
Nonaccrual loans individually evaluated for which no ACL was recorded	0
Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,673,000	1,703,000
Agriculture production
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	412,000	461,000
Consumer
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	103,000	19,000
Secured by real estate \| 1-4 residential real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	2,502,000	1,391,000
Secured by real estate \| Commercial Real Estate \| Owner occupied
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	1,326,000	1,102,000
Secured by real estate \| Construction and land development
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	250,000	108,000
Secured by real estate \| Agriculture real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual loans	$ 1,940,000	$ 1,896,000

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

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

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- Definition

Amortized cost excluding accrued interest, 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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