Lease - Components of Lease Cost and Rent Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Operating lease cost:
Operating lease cost	$ 142	$ 143	$ 260	$ 290
Short-term rent expense	(22)	4	29	15
Variable lease cost	0	0	1	1
Total operating lease cost	120	147	290	306
Finance lease cost:
Amortization right-of-use assets	9	9	18	18
Interest on finance lease liabilities	2	2	4	5
Total finance lease cost	$ 11	$ 11	$ 22	$ 23