Leases - Schedule of lease cost (Detail) $ in Thousands	3 Months Ended
	Sep. 30, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Short-term lease cost	$ 95
Total lease costs	114
Cash paid for amounts included in the measurement of lease liabilities	$ (2)
Remaining lease term - operating leases	1 month 6 days
Discount rate - operating leases	10.00%
Research and Development [Member]
Lessee, Lease, Description [Line Items]
Operating lease costs	$ (2)
Short-term lease cost	3
General and Administrative [Member]
Lessee, Lease, Description [Line Items]
Short-term lease cost	$ 18