Lease - Summary of Supplemental Balance Sheet Information Relating to Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Operating Leases:
Operating Lease ROU Assets	$ 873	$ 970
Finance Leases:
Finance Lease ROU Assets	$ 203	$ 203
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet	us-gaap:PropertyPlantAndEquipmentNet
Accumulated amortization	$ 50	$ 43
Current finance lease liabilities	$ 35	$ 34
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtCurrent	us-gaap:LongTermDebtCurrent
Long-term finance lease liabilities	$ 83	$ 90
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtNoncurrent	us-gaap:LongTermDebtNoncurrent