Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Difference Between Income Tax Rate and Statutory Income Tax Rate (Detail)

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Income Taxes - Schedule of Difference Between Income Tax Rate and Statutory Income Tax Rate (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Effective income tax rate differs from the statutory income tax rate    
Tax recovery at statutory income tax rates $ (8,015) $ (1,916)
Permanent differences 4,506 142
Effect of rate differentials between jurisdictions (551) (239)
Effect of foreign exchange rates (954) 347
Non-capital losses acquired with Adgero (4,114)  
Scientific research and development – ITC 97 (38)
Adjustment to prior year's provision versus statutory tax returns 228 323
Change in valuation allowance 8,803 1,381
Income tax expense benefit