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Capital Stock - Schedule of Fair Value of Options Calculated Using Black-Scholes Option Valuations Method (Details) - Black-Scholes option valuation model - $ / shares
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Weighted average risk-free interest rate 0.22% 1.60%
Weighted-average volatility 60.00% 61.00%
Expected dividends $ 0.00 $ 0.00
Weighted average expected term (years) 5 years 5 years
Weighted average fair value $ 0.57 $ 0.39