Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating expenses:
Research and development	$ 12,754	$ 12,214
General and administrative	4,187	3,700
Total operating expenses	16,941	15,914
Operating loss	(16,941)	(15,914)
Non-operating income (expense):
Interest and other income, net	1,578	1,404
Loss from change in fair value of embedded derivative liability	(15)	(14)
Total non-operating income, net	1,563	1,390
Net loss	(15,378)	(14,524)
Other comprehensive income (loss):
Net unrealized gain (loss) on marketable debt securities	368	67
Comprehensive loss	$ (15,010)	$ (14,457)
Net loss per common share - basic (in dollars per share)	$ (0.22)	$ (0.28)
Net loss per common share - diluted (in dollars per share)	$ (0.22)	$ (0.28)
Weighted average number of common shares outstanding - basic (in shares)	69,736	51,409
Weighted average number of common shares outstanding - diluted (in shares)	69,736	51,409