Rezolute, Inc. Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Additional Information (Details) $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($)
Increase in valuation allowance	$ 12.5
Domestic Tax Authority \| UNITED STATES
Operating Loss Carryforwards	153.2
Operating loss carryforwards, subject to limitations	33.4
Operating loss carryforwards, subject to no limitations	119.8
Operating loss carryforward not subject to expiration available to offset taxable income	17.1
Operating loss carryforward, not subject to expiration, available to reduce future taxable income	81.4
Domestic Tax Authority \| Expiration in 2031 Through 2035 \| UNITED STATES
Operating loss carryforward subject to expiration available to offset taxable income	7.9
Domestic Tax Authority \| Available Through Fiscal Year 2038 And Expires By June 30, 2038 \| UNITED STATES
Operating loss carryforward subject to expiration available to offset taxable income	13.4
Domestic Tax Authority \| Not Subject To Expiry And Available For Use Over 2038 And Thereafter Years \| UNITED STATES
Operating loss carryforward, not subject to expiration, available for use to reduce future taxable income	15.6
Operating loss carryforward per year not subject to expiration, available for use to reduce future taxable income	$ 1.2