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Income Taxes - Components of the Net Deferred Tax (Liability) and Asset (Details) - USD ($) | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 60,495,000 | $ 171,319,000
Capitalized research and development | 75,208,000 | 324,000
Tax credits | 66,407,000 | 0
Deferred revenue | 59,441,000 | 38,810,000
Lease liabilities | 25,382,000 | 2,844,000
Stock compensation | 10,296,000 | 41,479,000
Accrued compensation | 3,082,000 | 2,961,000
Intangible assets | 1,523,000 | 2,973,000
Other | 2,636,000 | 2,162,000
Total gross deferred tax assets | 304,470,000 | 262,872,000
Valuation allowance | (284,626,000) | (242,394,000)
Deferred tax liabilities: |  |
Fixed assets | (9,878,000) | (1,088,000)
Right-of-use assets | (9,966,000) | 0
State taxes | 0 | (19,390,000)
Total gross deferred tax liability | (19,844,000) | (20,478,000)
Net deferred tax assets (liabilities) | $ 0 | $ 0

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