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14. STOCK-BASED COMPENSATION - Fair Value Assumptions 2021 (Details)
6 Months Ended
Mar. 31, 2024
Expected dividends 0.00%
Minimum [Member]  
Risk free interest rate 3.94%
Expected term (years) 5 years 9 months 7 days
Expected volatility 122.05%
Maximum [Member]  
Risk free interest rate 4.82%
Expected term (years) 6 years 1 month 28 days
Expected volatility 176.02%