Income taxes - Schedule of effective income tax rate reconciliation (Details) |
12 Months Ended | ||
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Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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Income Tax Disclosure [Abstract] | |||
Tax expense computed at the federal statutory rate | 21.00% | 21.00% | 21.00% |
Change in valuation allowance | (13.00%) | (33.00%) | (25.00%) |
Research and development credit benefit | 4.00% | 3.00% | 1.00% |
Business combination | (4.00%) | (2.00%) | 0.00% |
Stock-based compensation | (1.00%) | 12.00% | 3.00% |
Change in fair value of contingent consideration and holdbacks | (1.00%) | 0.00% | 0.00% |
Gain on deconsolidation of variable interest entity | (1.00%) | 0.00% | 0.00% |
Total income tax expense | 5.00% | 1.00% | 0.00% |
X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to business combination. No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Fair Value Of Contingent Consideration And Holdback, Percent No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Variable Interest Entity, Percent No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X | ||||||||||
- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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