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SHAREHOLDERS' EQUITY (Weighted Average Assumptions for the Valuation of Purchase Rights) (Details)
3 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Employee Share Purchase Plan [Member]    
Weighted average assumptions    
Risk-free interest rate 0.20% 0.26%
Expected life of share purchase options 6 months 6 months
Expected annualized volatility 64.43% 65.73%
Dividend 0.00% 0.00%
Stock Options Plan [Member]    
Weighted average assumptions    
Risk-free interest rate 0.86% 0.39%
Expected life of share purchase options 10 years 10 years
Expected annualized volatility 80.00% 78.00%
Dividend 0.00% 0.00%