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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
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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