Property and Equipment, Net - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 8,969	$ 8,069
Accumulated depreciation and amortization	(4,658)	(3,639)
Property and equipment, net	4,311	4,430
Laboratory equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	4,249	2,938
Equipment (construction in progress) [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	2	206
Leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,881	3,851
Office equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 837	$ 1,074

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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