Quarterly report pursuant to Section 13 or 15(d)

Investments in Debt Securities (Debt Securities, Contractual Maturity) (Details)

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Investments in Debt Securities (Debt Securities, Contractual Maturity) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Jun. 30, 2022
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling Maturity, Fair Value [Abstract]    
2023 $ 3,667 $ 8,054
2024 2,262 2,791
Fair value $ 5,929 $ 10,845