Lease - Summary of Supplemental Cash Flow and Other Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 126	$ 119
Operating cash flows from finance leases	1	2
Financing cash flow from finance leases	9	8
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 35	$ 9
Weighted-average remaining lease term:
Operating leases	2 years 1 month 28 days	3 years 1 month 28 days
Finance leases	3 years 11 months 12 days	3 years 9 months 3 days
Weighted-average discount rate:
Operating leases	1.35%	3.93%
Finance leases	6.54%	6.54%