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Warrants (Tables) | 12 Months Ended
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Dec. 31, 2022
Warrants [Abstract] |
Schedule of the warrants issued 2020 financing |
Warrants holder |  | Investor Warrants |  |  | Placement Agent Warrants |
Appraisal Date |  | December 31, 2021 |  |  | December 31, 2021 |
Market price per share (USD/share) |  | $ | 1.56 |  |  | $ | 1.56 |
Exercise price (USD/price) |  |  | 6.46 |  |  |  | 6.475 |
Risk free rate |  |  | 0.7 | % |  |  | 0.8 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Expected term/ Contractual life (years) |  |  | 1.9 years |  |  |  | 2.4 years |
Expected volatility |  |  | 140.3 | % |  |  | 132.3 | %
Appraisal Date |  | December 31, 2022 |  |  | December 31, 2022 |
Market price per share (USD/share) |  | $ | 0.99 |  |  | $ | 0.99 |
Exercise price (USD/price) |  |  | 6.46 |  |  |  | 6.475 |
Risk free rate |  |  | 4.7 | % |  |  | 4.6 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Expected term/ Contractual life (years) |  |  | 0.9 years |  |  |  | 1.4 years |
Expected volatility |  |  | 75.6 | % |  |  | 82.7 | %
Warrants holder |  | Investor Warrants |  |  | Placement Agent |
Appraisal Date |  | Series A1 December 31, 2021 |  |  | Warrants December 31, 2021 |
Market price per share (USD/share) |  |  | 1.56 |  |  |  | 1.56 |
Exercise price (USD/price) |  |  | 7.67 |  |  |  | 9.204 |
Risk free rate |  |  | 0.9 | % |  |  | 0.9 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Expected term/ Contractual life (years) |  |  | 2.6 years |  |  |  | 2.6 years |
Expected volatility |  |  | 129.2 | % |  |  | 129.2 | %
Appraisal Date |  | Series A1 December 31, 2022 |  |  | December 31, 2022 |
Market price per share (USD/share) |  |  | 0.99 |  |  |  | 0.99 |
Exercise price (USD/price) |  |  | 7.67 |  |  |  | 9.204 |
Risk free rate |  |  | 4.5 | % |  |  | 4.5 | %
Dividend yield |  |  | 0 | % |  |  | 0 | %
Expected term/ Contractual life (years) |  |  | 1.6 years |  |  |  | 1.6 years |
Expected volatility |  |  | 80.4 | % |  |  | 80.4 | %
Schedule of warrants liability measured at fair value on a recurring basis using Level 3 inputs |
|  | Year ended December 31, 2021 |  |  | Year ended December 31, 2022 |
Balance at the beginning of the year |  | $ | 17,783,000 |  |  | $ | 5,846,000 |
Warrants issued to institution investors |  |  | 47,519,000 |  |  |  | - |
Warrants issued to placement agent |  |  | 2,346,000 |  |  |  | - |
Warrants redeemed |  |  | - |  |  |  | - |
Fair value change of the issued warrants included in earnings |  |  | (61,802,000 | ) |  |  | (5,710,000 | )
Balance at end of year |  |  | 5,846,000 |  |  |  | 136,000 |
Schedule of the warrant activity |
|  | Number of Warrants |  |  | Average Exercise Price |  |  | Weighted Average Remaining Contractual Term in Years |
Outstanding at January 1, 2022 |  |  | 9,092,499 |  |  | $ | 7.19 |  |  |  | 2.33 |
Exercisable at January 1, 2022 |  |  | 9,092,499 |  |  | $ | 7.19 |  |  |  | 2.33 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exercised / surrendered |  |  | - |  |  |  | - |  |  |  | - |
Expired |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at December 31, 2022 |  |  | 9,092,499 |  |  |  | 7.19 |  |  |  | 1.33 |
Exercisable at December 31, 2022 |  |  | 9,092,499 |  |  |  | 7.19 |  |  |  | 1.33 |

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