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