Note 4 - Fair Value - Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Jun. 30, 2025
Debt Securities, Held-to-Maturity, Fair Value	$ 4,556	$ 5,026
Fair Value, Inputs, Level 1 [Member] \| Reported Value Measurement [Member]
Cash and cash equivalents	17,321	19,908
Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	17,321	19,908
Fair Value, Inputs, Level 2 [Member] \| Reported Value Measurement [Member]
Loans held for sale	1,246	814
Accrued interest receivable	3,875	3,704
Short-term borrowings	21,696	15,511
Federal Home Loan Bank advances	7,017	22,551
Accrued interest payable	471	676
Fair Value, Inputs, Level 2 [Member] \| Reported Value Measurement [Member] \| Demand and Savings Deposits [Member]
Demand and savings deposits	839,287	772,354
Fair Value, Inputs, Level 2 [Member] \| Reported Value Measurement [Member] \| Time Deposits [Member]
Demand and savings deposits	270,597	264,464
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value Measurement [Member]
Loans held for sale	1,260	833
Accrued interest receivable	3,875	3,704
Short-term borrowings	21,696	15,511
Federal Home Loan Bank advances	6,621	20,677
Accrued interest payable	471	676
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value Measurement [Member] \| Demand and Savings Deposits [Member]
Demand and savings deposits	839,287	772,354
Fair Value, Inputs, Level 2 [Member] \| Estimate of Fair Value Measurement [Member] \| Time Deposits [Member]
Demand and savings deposits	270,125	263,250
Fair Value, Inputs, Level 3 [Member] \| Reported Value Measurement [Member]
Debt Securities, Held-to-Maturity, Fair Value	4,651	5,167
Loans, net	895,189	804,988
Fair Value, Inputs, Level 3 [Member] \| Estimate of Fair Value Measurement [Member]
Debt Securities, Held-to-Maturity, Fair Value	4,556	5,026
Loans, net	$ 879,133	$ 779,964

Fair value portion of accrued interest receivable.

No definition available.

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- Definition

Fair value portion of accrued expenses.

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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- Definition

Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

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