Leases - Schedule of Total Operating Costs (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Total lease costs included in general and administrative expenses	$ 0
General and Administrative Expense [Member]
Operating lease cost		$ 609,000	$ 214,000	$ 1,217,000
Variable lease costs		12,000	0	24,000
Total lease costs included in general and administrative expenses		$ 621,000	$ 214,000	$ 1,241,000