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v3.20.4

WARRANT LIABILITY (Details 3) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Weighted average assumptions: |  |
Risk-free interest rate | 0.20% | 1.68%
Expected dividend yield | 0.00% | 0.00%
Expected option life (years) | 2 years 8 months 23 days | 3 years 6 months 26 days
Expected stock price volatility | 73.93% | 61.61%
Weighted average fair value | $ 0.77 | $ 0.22

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