Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022
Finite Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 11,537,000		$ 11,962,000
Amortization expense	400,000	$ 400,000
Novartis
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	24,857,000		24,857,000
Accumulated Amortization	13,320,000		12,895,000
Impairment	0		0
Net Carrying Amount	11,537,000		11,962,000
Novartis | Patents
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	21,728,000		21,728,000
Accumulated Amortization	12,158,000		11,770,000
Impairment	0		0
Net Carrying Amount	$ 9,570,000		$ 9,958,000
Useful Lives	14 years		14 years
Novartis | License
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,129,000		$ 3,129,000
Accumulated Amortization	1,162,000		1,125,000
Impairment	0		0
Net Carrying Amount	$ 1,967,000		$ 2,004,000
Useful Lives	21 years		21 years