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v3.21.1

Warrants (Details) - $ / shares | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 10, 2020 | Dec. 31, 2020
Investor Warrants [Member] |  |
Market price per share (USD/share) | $ 5.36 | $ 5.06
Exercise price (USD/price) | $ 6.46 | $ 6.46
Risk free rate | 0.20% | 0.20%
Dividend yield | 0.00% | 0.00%
Expected term/ Contractual life (years) | 3 years | 2 years 10 months 25 days
Expected volatility | 211.50% | 187.60%
Placement Agent Warrants [Member] |  |
Market price per share (USD/share) | $ 5.36 | $ 5.06
Exercise price (USD/price) | $ 6.475 | $ 6.475
Risk free rate | 0.20% | 0.20%
Dividend yield | 0.00% | 0.00%
Expected term/ Contractual life (years) | 3 years | 2 years 10 months 25 days
Expected volatility | 211.50% | 187.60%

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