Balance Sheet Details - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands		Dec. 31, 2024	Jun. 30, 2024
Property, Plant and Equipment [Line Items]
Property and equipment, gross			$ 2,156
Less: accumulated depreciation	[1]		(1,764)
Property and equipment, net		$ 0	392
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross			1,000
Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross			187
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross			$ 969

[1] Includes impairment charge of $0.5 million, see below discussion on Impact of the Agreement (as discussed in Note 9. Leases).