Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (74,412)	$ (68,459)
Share-based compensation expense	7,121	7,360
Non-cash lease expense	532	526
Accretion of discounts and amortization of premiums on marketable debt securities, net	(2,394)	(2,837)
Depreciation expense	31	36
Changes in operating assets and liabilities:
Increase in prepaid expenses, deposits, and other assets	(2,095)	(129)
Increase in accounts payable	1,421	1,083
Increase in accrued liabilities	721	2,146
Net Cash Used in Operating Activities	(69,075)	(57,368)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of marketable debt securities	(128,140)	(66,401)
Proceeds from maturities of marketable debt securities	113,599	115,100
Net Cash Provided by (Used in) Investing Activities	(14,541)	48,699
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	893	234
Net cash payment pursuant to Exchange Agreement		(3)
Payment of offering costs	(1,059)	(315)
Net Cash Provided by Financing Activities	107,327	63,029
Net increase in cash and cash equivalents	23,711	54,360
Cash and cash equivalents at beginning of fiscal year	70,396	16,036
Cash and cash equivalents at end of fiscal year	94,107	70,396
SUPPLEMENTARY CASH FLOW INFORMATION:
Cash paid for amounts included in the measurement of operating lease liabilities	748	728
Operating lease liabilities incurred in exchange for right-of-use-assets		352
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Acquisition of treasury shares in exchange for issuing pre-funded warrant liability		5,697
Receivable from exercise of stock options	503	12
Payable for offering costs charged to additional paid-in capital	35	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
Underwritten Public Offering
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of equity securities in underwritten offering, net of underwriting discounts, Issuance of common stock	76,194	49,017
Underwritten Public Offering | Pre-funded warrants
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of equity securities in underwritten offering, net of underwriting discounts, Issuance of pre-funded warrants	21,089	$ 14,096
Private Placement 2024
CASH FLOWS FROM FINANCING ACTIVITIES:
Gross proceeds from issuance of common stock in Private Placement	6,000
Private Placement 2025
CASH FLOWS FROM FINANCING ACTIVITIES:
Gross proceeds from issuance of common stock in Private Placement	$ 4,210