Fair Value Measurements and Fair Value of Financial Instruments, Assets Measured on Recurring Basis (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)
Assets [Abstract]
Securities available-for-sale	$ 308,716	$ 281,133
Equity securities	$ 299	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	$ 308,716	281,133
Equity securities	299	306
Total securities measured at fair value	309,015	281,439
Recurring [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	10,467	10,823
Recurring [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	16,208	16,500
Recurring [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	171,620	138,011
Recurring [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	23,592	25,601
Recurring [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	68,884	72,086
Recurring [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	17,945	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	299	306
Total securities measured at fair value	299	306
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	308,716	281,133
Equity securities	0	0
Total securities measured at fair value	308,716	281,133
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| U.S. Government Sponsored Enterprises [Member]
Assets [Abstract]
Securities available-for-sale	10,467	10,823
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| U.S. Treasury Securities [Member]
Assets [Abstract]
Securities available-for-sale	16,208	16,500
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| State and Political Subdivisions [Member]
Assets [Abstract]
Securities available-for-sale	171,620	138,011
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage-backed Securities-Residential [Member]
Assets [Abstract]
Securities available-for-sale	23,592	25,601
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage-backed Securities-Multi-family [Member]
Assets [Abstract]
Securities available-for-sale	68,884	72,086
Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Corporate Debt Securities [Member]
Assets [Abstract]
Securities available-for-sale	17,945	18,112
Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Securities available-for-sale	0	0
Equity securities	0	0
Total securities measured at fair value	0	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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+ References

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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