Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following table presents the components of intangible assets:

	Gross Carrying Amount		Accumulated Amortization		Impairment		Net Carrying Amount		Useful Lives
	(in thousands)								(in years)
As of September 30, 2025
Patents	$	21,728	$	16,426	$	—	$	5,302	14
License	3,129		1,570		—		1,559		21
Total intangible assets, net	$	24,857	$	17,996	$	—	$	6,861
As of September 30, 2024
Patents	$	21,728	$	14,873	$	—	$	6,855	14
License	3,129		1,422		—		1,707		21
Total intangible assets, net	$	24,857	$	16,295	$	—	$	8,562

Schedule of Intangible Assets Future Amortization Expense

The following table presents the estimated future amortization expense related to intangible assets as of September 30, 2025:

	Amortization Expense
Year Ending September 30,	(in thousands)
2026	$	1,700
2027	1,700
2028	1,700
2029	795
2030	149
Thereafter	817
Total	$	6,861