Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (68,459)	$ (51,787)
Share-based compensation expense	7,360	7,268
Non-cash lease expense	526	352
Accretion of discounts and amortization of premiums on marketable debt securities, net	(2,837)	(1,370)
Depreciation expense	36	30
Changes in operating assets and liabilities:
Increase in prepaid expenses, deposits, and other assets	(129)	(1,320)
Increase in accounts payable	1,083	2,136
Increase in accrued liabilities	2,146	205
Net Cash Used in Operating Activities	(57,368)	(44,481)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of marketable debt securities	(66,401)	(107,311)
Proceeds from maturities of marketable debt securities	115,100	6,000
Purchase of property and equipment		(153)
Total Cash Provided by (Used in) Investing Activities	48,699	(101,464)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	234
Net cash payment pursuant to Exchange Agreement	(3)
Gross proceeds from issuance of common stock in 2022 Private Placement		12,330
Payment of commissions and other deferred offering costs	(315)	(759)
Net Cash Provided by Financing Activities	63,029	11,571
Net increase (decrease) in cash and cash equivalents	54,360	(134,374)
Cash and cash equivalents at beginning of fiscal year	16,036	150,410
Cash and cash equivalents at end of fiscal year	70,396	16,036
SUPPLEMENTARY CASH FLOW INFORMATION:
Cash paid for amounts included in the measurement of operating lease liabilities	728	215
Operating lease liabilities incurred in exchange for right-of-use assets	352	2,204
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Acquisition of treasury shares in exchange for pre-funded warrant derivative liability	5,697
Receivable from exercise of stock options	12
Payables for offering costs charged to additional paid-in capital	548
Warrant derivative
CASH FLOWS FROM OPERATING ACTIVITIES:
Loss from change in fair value of derivative liabilities	2,850
Embedded derivative
CASH FLOWS FROM OPERATING ACTIVITIES:
Loss from change in fair value of derivative liabilities	56	$ 5
Underwritten Public Offering
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of equity securities in 2024 Underwritten Offering, net of underwriting discounts, Issuance of common stock	49,017
Underwritten Public Offering | Pre-funded warrants
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of equity securities in 2024 Underwritten Offering, net of underwriting discounts, Issuance of pre-funded warrants	$ 14,096