Income Taxes - Schedule of Difference Between Income Tax Rate and Statutory Income Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Effective income tax rate differs from the statutory income tax rate
Tax recovery at statutory income tax rates	$ (4,743)	$ (8,015)
Permanent differences	802	4,506
Effect of rate differentials between jurisdictions	(345)	(551)
Effect of foreign exchange rates	445	(954)
Non-capital losses acquired with Adgero		(4,114)
Scientific research and development – ITC	(44)	97
Adjustment to prior year's provision versus statutory tax returns	(2,332)	228
Other	196
Change in valuation allowance	$ 6,021	$ 8,803