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Off-Balance Sheet Financial Instruments and Guarantees (Schedule of Fair Value, Off-balance Sheet Risks) (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Jun. 30, 2023
--- | --- | ---
Loss Contingencies [Line Items] |  |
Financial instrument commitments | $ 259,119 | $ 272,579
Commitments to Grant Loans [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | 94,714 | 96,514
Unfunded Commitments Under Lines of Credit [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | 157,184 | 162,256
Standby Letters of Credit [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | $ 7,221 | $ 13,809

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