Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating expenses:
Research and development	$ 55,743	$ 43,813
General and administrative	14,680	12,177
Total operating expenses	70,423	55,990
Operating loss	(70,423)	(55,990)
Non-operating income (expense):
Interest and other income, net	4,870	4,208
Total non-operating income, net	1,964	4,203
Net loss	(68,459)	(51,787)
Other comprehensive income (loss):
Net unrealized gain (loss) on marketable debt securities	272	(351)
Comprehensive loss	$ (68,187)	$ (52,138)
Net loss per common share - basic (in dollars per share)	$ (1.33)	$ (1.01)
Net loss per common share - diluted (in dollars per share)	$ (1.33)	$ (1.01)
Weighted average number of common shares outstanding - basic (in shares)	51,465	51,187
Weighted average number of common shares outstanding - diluted (in shares)	51,465	51,187
Warrant derivative
Non-operating income (expense):
Loss from change in fair value of derivative liabilities	$ (2,850)
Embedded derivative
Non-operating income (expense):
Loss from change in fair value of derivative liabilities	$ (56)	$ (5)