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INVESTMENTS (Tables) | 9 Months Ended
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Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investments by Type of Security | The following tables summarize investments by type of security as of June 30, 2025 and September 30, 2024 (amounts in thousands):
June 30, 2025: | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Available-for-sale securities: |  |  |  |  |  |  |
U.S. Government and agency securities, short-term | $ | 1,488 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,488 |
Commercial paper, short-term | 17,286 |  |  | — |  |  | (12) |  |  | 17,274 |
Corporate debt securities, short-term | 21,164 |  |  | 29 |  |  | (8) |  |  | 21,185 |
U.S. Government and agency securities, long-term | 500 |  |  | — |  |  | (1) |  |  | 499 |
Corporate debt securities, long-term | 7,780 |  |  | 29 |  |  | (4) |  |  | 7,805 |
Total | $ | 48,218 |  |  | $ | 58 |  |  | $ | (25) |  |  | $ | 48,251 |
September 30, 2024: | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Market Value
Available-for-sale securities: |  |  |  |  |  |  |
U.S. Treasury, short-term | $ | 3,841 |  |  | $ | 1 |  |  | $ | (6) |  |  | $ | 3,836 |
Commercial paper, short-term | 15,964 |  |  | 20 |  |  | — |  |  | 15,984 |
Corporate debt securities, short-term | 17,008 |  |  | 56 |  |  | — |  |  | 17,064 |
Corporate debt securities, long-term | 11,328 |  |  | 84 |  |  | (2) |  |  | 11,410 |
Total | $ | 48,141 |  |  | $ | 161 |  |  | $ | (8) |  |  | $ | 48,294 |

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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