Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
Current assets:
Cash and cash equivalents	$ 94,107	$ 70,396
Investments in marketable debt securities	73,751	56,478
Prepaid expenses and other	3,287	1,779
Total current assets	171,145	128,653
Long-term assets:
Deposits and other	2,925	1,838
Right-of-use assets	1,348	1,880
Property and equipment, net	72	103
Investments in marketable debt securities		263
Total assets	175,490	132,737
Current liabilities:
Accounts payable	5,809	4,901
Accrued liabilities:
Accrued clinical and other	3,202	2,325
Compensation and benefits	2,269	1,812
Current portion of operating lease liabilities	632	568
Total current liabilities	11,912	9,606
Long-term liabilities:
Operating lease liabilities, net of current portion	983	1,660
Embedded derivative liability	468	468
Total liabilities	13,363	11,734
Commitments and contingencies (Notes 5, 10 and 11)
Shareholders' equity:
Preferred stock, $0.001 par value; 400,000 shares authorized; no shares issued
Common stock, $0.001 par value; 165,000,000 and 100,000,000 shares authorized; issued and outstanding 86,995,985 and 53,245,824 shares as of June 30, 2025 and 2024, respectively	87	53
Additional paid-in capital	565,903	450,473
Accumulated other comprehensive loss	(7)	(79)
Accumulated deficit	(403,856)	(329,444)
Total shareholders' equity	162,127	121,003
Total liabilities and shareholders' equity	$ 175,490	$ 132,737