Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Current assets:
Cash and cash equivalents	$ 33,743	$ 150,410
Investments in marketable debt securities	69,319
Prepaid expenses and other	2,464	1,694
Total current assets	105,526	152,104
Long-term assets:
Investments in marketable debt securities	26,210
Right-of-use assets	2,172	152
Property and equipment, net	149	16
Deposits and other	148	148
Total assets	(134,205)	(152,420)
Current liabilities:
Accounts payable	2,947	1,132
Accrued liabilities:
Accrued clinical and other	1,121	979
Insurance premiums		243
Current portion of operating lease liabilities	319	108
Total current liabilities	4,387	2,462
Long term liabilities:
Operating lease liabilities, net of current portion	2,055	80
Embedded derivative liabilities	447	407
Total liabilities	6,889	2,949
Commitments and contingencies (Notes 5, 9 and 10)
Shareholders' equity:
Preferred stock, $0.001 par value; 400 shares authorized; no shares issued and outstanding
Common stock, $0.001 par value; 100,000 shares authorized; issued and outstanding 36,827 and 33,582 shares as of March 31, 2023 and June 30, 2022, respectively	37	34
Additional paid-in capital	375,668	358,635
Accumulated other comprehensive loss	(132)
Accumulated deficit	(248,257)	(209,198)
Total shareholders' equity	127,316	149,471
Total liabilities and shareholders' equity	$ 134,205	$ 152,420