Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Jun. 30, 2025
Current assets:
Cash and cash equivalents	$ 11,236	$ 94,107
Investments in marketable debt securities	109,032	73,751
Prepaid expenses and other	1,781	3,287
Total current assets	122,049	171,145
Long-term assets:
Deposits and other	2,443	2,925
Right-of-use assets	918	1,348
Property and equipment, net	49	72
Total assets	125,459	175,490
Current liabilities:
Accounts payable	3,195	5,809
Accrued liabilities:
Accrued clinical and other	2,802	3,202
Compensation and benefits	1,034	2,269
Current portion of operating lease liabilities	673	632
Total current liabilities	7,704	11,912
Long-term liabilities:
Embedded derivative liability	483	468
Operating lease liabilities, net of current portion	438	983
Total liabilities	8,625	13,363
Commitments and contingencies (Notes 5, 9 and 10)
Shareholders' equity:
Preferred stock, $0.001 par value; 400,000 shares authorized; no shares issued
Common stock, $0.001 par value; 165,000,000 shares authorized; issued and outstanding 96,292,331 and 86,995,985 shares as of March 31, 2026 and June 30, 2025, respectively	96	87
Additional paid-in capital	577,804	565,903
Accumulated other comprehensive loss	(115)	(7)
Accumulated deficit	(460,951)	(403,856)
Total shareholders' equity	116,834	162,127
Total liabilities and shareholders' equity	$ 125,459	$ 175,490