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Off-Balance Sheet Financial Instruments and Guarantees (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Jun. 30, 2021
--- | --- | ---
Loss Contingencies [Line Items] |  |
Financial instrument commitments | $ 253,220 | $ 217,776
Commitments to grant loans [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | 93,304 | 80,647
Unfunded commitments under lines of credit [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | 146,921 | 131,309
Standby letters of credit [Member] |  |
Loss Contingencies [Line Items] |  |
Financial instrument commitments | $ 12,995 | $ 5,820

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