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Fair Value Measurements and Fair Value of Financial Instruments, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Jun. 30, 2022
--- | --- | ---
Assets [Abstract] |  |
Securities available-for-sale | $ 335,118 | $ 408,062
Equity securities | 281 | 273
Recurring [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 335,118 | 408,062
Equity securities | 281 | 273
Total securities measured at fair value | 335,399 | 408,335
Recurring [Member] | U.S. Government Sponsored Enterprises [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 10,729 | 11,319
Recurring [Member] | U.S. Treasury Securities [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 16,106 | 18,427
Recurring [Member] | State and Political Subdivisions [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 193,897 | 248,076
Recurring [Member] | Mortgage-backed Securities-Residential [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 26,696 | 29,897
Recurring [Member] | Mortgage-backed Securities-Multi-family [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 71,631 | 83,709
Recurring [Member] | Corporate Debt Securities [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 16,059 | 16,634
Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 0 | 0
Equity securities | 281 | 273
Total securities measured at fair value | 281 | 273
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 | 335,118 | 408,062
Equity securities | 0 | 0
Total securities measured at fair value | 335,118 | 408,062
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Enterprises [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 10,729 | 11,319
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Securities [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 16,106 | 18,427
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | State and Political Subdivisions [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 193,897 | 248,076
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed Securities-Residential [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 26,696 | 29,897
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed Securities-Multi-family [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 71,631 | 83,709
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Debt Securities [Member] |  |
Assets [Abstract] |  |
Securities available-for-sale | 16,059 | 16,634
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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