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The following table summarizes the weighted average information and assumptions used to determine option costs: (Details)
12 Months Ended
Jun. 30, 2023
$ / shares
Jun. 30, 2022
$ / shares
Jun. 30, 2021
$ / shares
Fair value per option granted during the period $ 3.09    
Risk-free interest rate 3.30% 1.33% 0.26%
Expected dividend yield 0.00% 0.00% 0.00%
Expected stock price volatility (historical basis) 63.60% 54.40% 54.10%
Expected option life in years 3 years 3 years 3 years
Canada, Dollars      
Fair value per option granted during the period   $ 4.90 $ 2.50