v3.22.2.2

Investments in Debt Securities (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Amortization of premiums on debt securities | $ 312,000 | $ 216,000
Minimum [Member] |  |
Debt securities, interest rate | 0.25% |
Debt securities, maturity date | Aug. 31, 2022 |
Maximum [Member] |  |
Debt securities, interest rate | 3.50% |
Debt securities, maturity date | Feb. 28, 2024 |

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