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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Income Taxes [Line Items]
Deferred tax asset	$ 2,900
Gross unrecognized tax benefits	5,833	$ 5,800
Interest and penalties	1,400	$ 1,400
Domestic Country
Income Taxes [Line Items]
Net operating loss (NOL) carryforwards	7,800
Foreign Country
Income Taxes [Line Items]
Net operating loss (NOL) carryforwards	$ 7,300
Minimum [Member] | State And Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration year	2024

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Income taxes.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

+ References

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-Topic 740
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-Name Accounting Standards Codification
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