Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Total revenue	$ 18,892	$ 19,479	$ 60,272	$ 65,843
Operating expenses:
Research and development	42,987	39,090	127,357	129,726
General and administrative	12,618	12,929	39,092	32,913
Total operating expenses	55,605	52,019	166,449	162,639
Loss from operations	(36,713)	(32,540)	(106,177)	(96,796)
Other income (expense):
Interest expense	(1,997)	0	(1,997)	0
Interest and investment income, net	3,866	393	6,696	942
Total other income, net	1,869	393	4,699	942
Loss before income taxes	(34,844)	(32,147)	(101,478)	(95,854)
Income tax (expense) benefit	(4,221)	447	(4,231)	447
Net loss	$ (39,065)	$ (31,700)	$ (105,709)	$ (95,407)
Net loss per share:
Basic	$ (1.86)	$ (1.53)	$ (5.05)	$ (4.64)
Diluted	$ (1.86)	$ (1.53)	$ (5.05)	$ (4.64)
Weighted average shares outstanding:
Basic	21,054	20,710	20,939	20,552
Diluted	21,054	20,710	20,939	20,552
Royalty [Member]
Total revenue	$ 18,892	$ 19,479	$ 59,272	$ 65,843
License [Member]
Total revenue	$ 0	$ 0	$ 1,000	$ 0