Fair Value Measurements - Schedule of Financial Assets that are Measured at Fair Value and Indicates the Fair Value Hierarchy of the Valuation Inputs (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value	$ 57,232	$ 28,141
Cash and Cash Equivalents	56,434	23,938
Marketable Securities	0	3,433
Money market funds \| Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost	50,194	20,898
Fair Value	50,194	20,898
Cash and Cash Equivalents	50,194	20,898
Marketable Securities	0	0
Government securities \| Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost		1,003
Fair Value		1,006
Cash and Cash Equivalents		0
Marketable Securities		1,006
Government securities \| Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost		405
Fair Value		405
Cash and Cash Equivalents		0
Marketable Securities		405
Corporate bonds \| Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost		2,017
Fair Value		2,022
Cash and Cash Equivalents		0
Marketable Securities		2,022
Time deposits \| Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost	6,240	3,040
Fair Value	6,240	3,040
Cash and Cash Equivalents	6,240	3,040
Marketable Securities	0	0
Convertible debt \| Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, cost	0	0
Fair Value	798	770
Cash and Cash Equivalents	0	0
Marketable Securities	$ 0	$ 0