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Income Taxes - Summary of Significant Portion of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Sep. 30, 2023
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Income Tax Disclosure [Abstract] |  |
Net operating loss carryforwards | $ 12,357 | $ 10,665
Research and development credit | 4,639 | 4,929
Share-based compensation | 562 | 650
Patents | 1,770 | 2,203
Accruals and other | 2,227 | 2,071
Capitalized R&E expenses | 3,893 | 1,916
Allowances | 199 | 237
Gross deferred tax assets | 25,647 | 22,671
Equipment | (216) | (274)
Operating ROU assets | (619) | (907)
Acquired intangible assets | (1,592) | (1,736)
Gross deferred tax liabilities | (2,427) | (2,917)
Less valuation allowance | 23,220 | 19,754
Net deferred tax assets and liabilities | $ 0 | $ 0

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