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Commitments and Contingencies (Details 5) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Loss Contingencies [Line Items] |  |  |
Total share based compensation | $ 16,370 | $ 18,379 | $ 8,231
General and Administrative Expense [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Total share based compensation | 5,558 | 7,129 | 3,571
Research and Development Expense [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Total share based compensation | $ 10,812 | $ 11,250 | $ 4,660

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