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Investments in Debt Securities (Tables) | 9 Months Ended
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Mar. 31, 2026
Investments in Debt Securities |
Schedule of components of available-for-sale debt securities | Investments in debt securities consist of AA and A rated government issued treasury bills, treasury notes, government sponsored discount notes, and certificates of deposits bearing interest at rates from 3.55% to 4.625% with maturities from June 2026 to March 2027. The components of investments in debt securities are as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | June 30,
​ | ​ | 2026 | ​ | 2025
Adjusted cost | ​ | $ | 27,187 | ​ | $ | —
Gross unrealized losses | ​ | ​ | (21) | ​ | ​ | —
Fair value | ​ | $ | 27,166 | ​ | $ | —
​
Schedule of fair value of available-for-sale debt securities, by contractual maturity | The fair value of available-for-sale debt securities, by contractual maturity, as of March 31, 2026, was as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | June 30,
​ | ​ | 2026 | ​ | 2025
Due in one year or less | ​ | $ | 27,166 | ​ | $ | —
​

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