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Organization and Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022
Cash and Cash Equivalents [Line Items] |  |
Term of interest bearing deposits | 3 years |
Interest-bearing deposits in other depository institutions |  |
Cash and Cash Equivalents [Line Items] |  |
Cash | $ 3.8 | $ 47.3
Deposits are held in various commercial banks |  |
Cash and Cash Equivalents [Line Items] |  |
Cash | $ 1.3 | $ 5.8

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