Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (20,902)	$ (20,333)
Change in fair value of derivative liabilities	(1,789)	0
Share-based compensation expense	3,965	3,317
Non-cash lease expense	290	222
Accretion of debt discount and issuance costs	86	0
Depreciation and amortization expense	13	18
Fair value of warrants issued for services	8	79
Fair value of shares of Common Stock issued for services	8	0
Impairment of long-lived assets and other	0	23
Changes in operating assets and liabilities:
Decrease (increase) in prepaid expenses and other assets	(387)	12
Increase in accounts payable	142	330
Decrease in other accrued liabilities	(66)	(1,145)
Decrease in license fees payable to Xoma	(1,809)	(6,691)
Net Cash Used In Operating Activities	(20,441)	(24,168)
CASH FLOWS FROM INVESTING ACTIVITIES:
CASH FLOWS FROM INVESTING ACTIVITIES	0	0
Proceeds from private placements of equity:
Units	41,000	0
Common stock	0	24,050
Payments for offering costs related to equity issuances	(3,730)	(1,500)
Gross proceeds from debt financing	15,000	0
Cash payments for debt discount and issuance costs	737	0
Net Cash Provided by Financing Activities	51,533	22,550
Net increase (decrease) in cash, cash equivalents and restricted cash	31,092	(1,618)
Cash, cash equivalents and restricted cash at beginning of fiscal year	9,955	11,573
Cash, cash equivalents and restricted cash at end of fiscal year	41,047	9,955
SUPPLEMENTARY CASH FLOW INFORMATION:
Cash paid for interest	177	0
Cash paid for income taxes	0	0
Right-of-use assets acquired in exchange for operating lease liabilities	302	0
Cash paid for amounts included in the measurement of operating lease liabilities	299	275
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Reclassification of warrants and stock options from equity to derivative liability due to authorized share deficiency	3,591	0
Reclassification of derivative liability to equity upon cure of authorized share deficiency	1,796	0
Debt discounts incurred for:
Final Fee obligation under debt agreement	713	0
Allocation of debt proceeds to embedded derivative obligations	381	0
Payables for debt issuance costs	25	0
Furniture and equipment received as inducement under operating lease	$ 10	$ 0