Note 3 - Loans and Allowance for Credit Losses - Non-accrual Loans (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Jun. 30, 2023
Nonaccrual, No Allowance	$ 1,025
Nonaccrual	1,025	$ 54
Nonaccrual, Interest Income	0
Commercial Real Estate Portfolio Segment [Member] \| Other Commercial Real Estate Loans [Member]
Nonaccrual		51
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loans [Member]
Nonaccrual, No Allowance	429
Nonaccrual	429
Nonaccrual, Interest Income	0
Residential Portfolio Segment [Member]
Nonaccrual, No Allowance	264
Nonaccrual	264
Nonaccrual, Interest Income	0
Residential Portfolio Segment [Member] \| Non-owner Occupied Loans [Member]
Nonaccrual		$ 3
Commercial & Industrial [Member]
Nonaccrual, No Allowance	332
Nonaccrual	332
Nonaccrual, Interest Income	$ 0

Amount of interest income on financing receivable on nonaccrual status.

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

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- 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

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (3)
-Publisher SEC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
-Subparagraph (2)
-Publisher SEC

Reference 4: 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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