Lease - Summary of Supplemental Cash Flow and Other Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 91	$ 126
Operating cash flows from finance leases	1	1
Financing cash flow from finance leases	10	9
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 7	$ 35
Weighted-average remaining lease term:
Operating leases	1 year 1 month 28 days	2 years 1 month 28 days
Finance leases	3 years 3 months 7 days	3 years 11 months 12 days
Weighted-average discount rate:
Operating leases	1.01%	1.35%
Finance leases	6.54%	6.54%