Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Jun. 30, 2025
Current assets:
Cash and cash equivalents	$ 11,944	$ 94,107
Investments in marketable debt securities	120,994	73,751
Prepaid expenses and other	2,168	3,287
Total current assets	135,106	171,145
Long-term assets:
Deposits and other	2,402	2,925
Right-of-use assets	1,064	1,348
Property and equipment, net	57	72
Total assets	138,629	175,490
Current liabilities:
Accounts payable	3,783	5,809
Accrued liabilities:
Accrued clinical and other	3,548	3,202
Compensation and benefits	1,532	2,269
Current portion of operating lease liabilities	666	632
Total current liabilities	9,529	11,912
Long-term liabilities:
Operating lease liabilities, net of current portion	619	983
Embedded derivative liability	483	468
Total liabilities	10,631	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 95,547,998 and 86,995,985 shares as of December 31, 2025 and June 30, 2025, respectively	96	87
Additional paid-in capital	572,635	565,903
Accumulated other comprehensive income (loss)	47	(7)
Accumulated deficit	(444,780)	(403,856)
Total shareholders' equity	127,998	162,127
Total liabilities and shareholders' equity	$ 138,629	$ 175,490