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 ($)
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Effective income tax rate differs from the statutory income tax rate    
Tax recovery at statutory income tax rates $ (1,916,442) $ (1,690,126)
Permanent differences 142,523 (527,532)
Effect of rate differentials between jurisdictions (239,465) (429,531)
Effect of foreign exchange rates 347,510  
Scientific research and development – ITC (38,252) (39,807)
Other 322,689 106,320
Change in valuation allowance 1,381,437 2,580,676
Income tax expense benefit