Note 4 - Loans (Details Textual) Pure in Thousands, $ in Thousands	12 Months Ended
Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)
Interest Receivable	$ 1,598	$ 1,214
Financing Receivable, Nonaccrual	54	431
Financing Receivable, Modified, Accumulated	351	318
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount	$ 0	$ 0
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Threshold Amount of Loans Outstanding to Perform Credit Analysis	$ 100
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Nonaccrual	$ 54	$ 27
Financial Asset, Not Past Due [Member]
Financing Receivable, Nonaccrual		$ 404

Number of financing receivables that have been modified by troubled debt restructurings.

No definition available.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

No definition available.

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- Definition

The threshold amount of loans outstanding balance that will trigger the credit analysis.

+ References

No definition available.

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- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amortized cost of financing receivable on nonaccrual status. 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
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-Subparagraph (a)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 310
-Name Accounting Standards Codification
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+ Details

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- Definition

Amount of restructured debt contingently payable based on the occurrence of future events or circumstances.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 470
-SubTopic 60
-Section 50
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-Publisher FASB
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