Fair Value Measurements and Fair Value of Financial Instruments, Assets Measured on Recurring Basis (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($)
Assets [Abstract]
Securities available-for-sale	$ 345,519	$ 281,133
Equity securities	$ 343	306
Significant Unobservable Inputs (Level 3) [Member] \| Minimum [Member] \| Liquidation Expenses [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Collateral dependent evaluated loans, measurement input	0.10
Foreclosed real estate, measurement input	0.10
Significant Unobservable Inputs (Level 3) [Member] \| Maximum [Member] \| Liquidation Expenses [Member]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Collateral dependent evaluated loans, measurement input	0.40
Foreclosed real estate, measurement input	0.60
Recurring [Member]
Assets [Abstract]
Securities available-for-sale	$ 345,519	281,133
Equity securities	343	306
Interest rate swaps	591
Total	346,453	281,439
Liabilities [Abstract]
Interest rate swaps	591
Total	591
Recurring [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	10,950	10,823
Recurring [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	43,133	16,500
Recurring [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	170,976	138,011
Recurring [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	29,378	25,601
Recurring [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	72,517	72,086
Recurring [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	18,565	18,112
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Equity securities	343	306
Interest rate swaps	0
Total	343	306
Liabilities [Abstract]
Interest rate swaps	0
Total	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Securities available-for-sale	345,519	281,133
Equity securities	0	0
Interest rate swaps	591
Total	346,110	281,133
Liabilities [Abstract]
Interest rate swaps	591
Total	591
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	10,950	10,823
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	43,133	16,500
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	170,976	138,011
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	29,378	25,601
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	72,517	72,086
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	18,565	18,112
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Equity securities	0	0
Interest rate swaps	0
Total	0	0
Liabilities [Abstract]
Interest rate swaps	0
Total	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	$ 0	$ 0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value of financial and nonfinancial obligations.

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