Lease - Summary of Supplemental Cash Flow and Other Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 91	$ 126	$ 182	$ 252
Operating cash flows from finance leases	1	1	2	3
Financing cash flow from finance leases	9	9	19	18
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 17	$ 35	$ 24	$ 35
Weighted-average remaining lease term:
Operating leases	3 years 21 days	3 years 10 months 17 days	3 years 21 days	3 years 10 months 17 days
Finance leases	10 months 24 days	1 year 10 months 24 days	10 months 24 days	1 year 10 months 24 days
Weighted-average discount rate:
Operating leases	1.00%	1.15%	1.00%	1.15%
Finance leases	6.54%	6.54%	6.54%	6.54%