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STOCK OPTIONS (Details)
9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Minimum    
Expected volatility 45.38% 45.38%
Risk-free interest rate 0.14% 0.30%
Expected life (years) 3 months 2 years 6 months
Maximum    
Expected volatility 81.97% 65.49%
Risk-free interest rate 2.35% 2.35%
Expected life (years) 4 years 6 months 4 days 3 years 3 months