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Income Taxes - Schedule of Components of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
--- | --- | --- | ---
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ 17,112 | $ 17,180 |
Accruals and reserves | 2,865 | 1,441 |
Foreign tax credits | 1,618 | 811 |
Operating lease liabilities | 2,719 | 2,492 |
Research and development costs | 1,011 |  |
Foreign service fee | 1,579 | 1,579 |
Other assets | 731 | 467 |
Total deferred tax assets | 27,635 | 23,970 |
Valuation allowance | (21,506) | (20,000) | $ (23,292)
Deferred tax assets, net of valuation allowance | 6,129 | 3,970 |
Deferred tax liabilities: |  |  |
Goodwill and identifiable intangible assets | (1,616) | (321) |
Property and equipment, net | (1,356) | (758) |
Operating lease, right-of-use assets | (2,720) | (2,494) |
Prepaid assets | (336) | (318) |
Total deferred tax liabilities | (6,028) | (3,891) |
Total deferred tax assets, net | $ 101 | $ 79 |

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