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Financial Instruments and Fair Value Measurements - Schedule of Cash Equivalents and Long-Term Investments Measured at Fair value on a Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024
--- | --- | ---
Money market funds |  |
Asset at Fair Value |  |
Restricted cash and equivalents | $ 200 | $ 200
Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Total assets measured at fair value | 7,766 | 6,341
Level 1 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Total assets measured at fair value | 5,446 | 4,026
Level 2 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Total assets measured at fair value | 491 | 486
Level 3 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Total assets measured at fair value | 1,829 | 1,829
Investment in marketable equity security | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Investment in marketable equity security | 5,112 | 3,686
Investment in marketable equity security | Level 1 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Investment in marketable equity security | 5,112 | 3,686
Investment in marketable equity security | Level 2 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Investment in marketable equity security | 0 | 0
Investment in marketable equity security | Level 3 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Investment in marketable equity security | 0 | 0
Auction rate security | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Auction rate security | 1,829 | 1,829
Auction rate security | Level 1 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Auction rate security | 0 | 0
Auction rate security | Level 2 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Auction rate security | 0 | 0
Auction rate security | Level 3 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Auction rate security | 1,829 | 1,829
Money market funds |  |
Asset at Fair Value |  |
Cash and cash equivalents | 100 | 100
Money market funds | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 334 | 340
Money market funds | Level 1 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 334 | 340
Money market funds | Level 2 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 0 | 0
Money market funds | Level 3 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 0 | 0
Certificates of deposit | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 491 | 486
Certificates of deposit | Level 1 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 0 | 0
Certificates of deposit | Level 2 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | 491 | 486
Certificates of deposit | Level 3 | Fair Value, Measurements, Recurring |  |
Asset at Fair Value |  |
Cash and cash equivalents | $ 0 | $ 0

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