Income Taxes (Tables)

12 Months Ended

Sep. 30, 2025

Income Tax Disclosure [Abstract]

Schedule of loss before income taxes

	2025			2024			2023
United States	$	(44,500	)	$	(39,195	)	$	(41,198	)
Foreign		(1,877	)		(3,807	)		(6,300	)
Total	$	(46,377	)	$	(43,002	)	$	(47,498	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2025			2024
Net operating loss carryforwards	$	54,752		$	48,134
Research and development tax credit carryforwards		5,288			4,203
Share-based compensation		23,185			21,091
Research and development capitalization		20,737			15,104
Unpaid charges		3,843			3,197
Intangible asset costs		946			758
Foreign exchange and other		(259	)		(254	)
Valuation allowance of deferred tax assets		(108,492	)		(92,233	)
Net deferred tax assets	$	—		$	—

Schedule of reconciliation of income tax expense

	2025			2024			2023
Income tax benefit at statutory federal rate	$	(9,739	)	$	(9,030	)	$	(9,975	)
Foreign income taxed at other rates		—			(61	)		—
Permanent differences relating to share-based compensation		(1,219	)		(10	)		(601	)
Permanent differences relating to GILTI inclusion		—			—			165
Other permanent differences		130			(276	)		273
Research and development credits, net		(941	)		(860	)		(37	)
State and local taxes		(4,672	)		(3,821	)		(4,122	)
Adjustment to true up to prior years’ tax provision		182			(1,128	)		206
Change in valuation allowances		16,259			15,186			14,098
Income tax expense	$	—		$	—		$	7