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Warrants (Tables)
 3 Months Ended
Mar. 31, 2021
Warrants Disclosure [Abstract]  
Schedule of the outstanding warrants
Warrants holder  Investor
Warrants		   Placement
Agent
Warrants		 
Appraisal Date (Inception Date)  December 10,
2020		   December 10,
2020		 
Market price per share (USD/share)  $5.36   $5.36 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   0.2%   0.2%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   3.0 years    3.5 years 
Expected volatility   211.5%   211.5%
Appraisal Date  December 31,
2020		   December 31,
2020		 
Market price per share (USD/share)  $5.06   $5.06 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   0.2%   0.2%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   2.9 years    3.4 years 
Expected volatility   187.6%   187.6%
Appraisal Date  March 31,
2021		   March 31,
2021		 
Market price per share (USD/share)  $5.10   $5.1 
Exercise price (USD/price)   6.46    6.475 
Risk free rate   0.3%   0.4%
Dividend yield   0.0%   0.0%
Expected term/ Contractual life (years)   2.7 years    3.2 years 
Expected volatility   134.8%   125.8%
Schedule of warrants issued
Warrants holder  Investor Warrants   Placement
Agent
Warrants		 
Appraisal Date (Inception Date)  Series A1
February 10,
2021		   Series A2
February 10,
2021		   Series B February 10,
2021		   February 10,
2021		 
Market price per share (USD/share)  $7.36   $7.36   $7.36   $7.36 
Exercise price (USD/price)   7.67    7.67    7.83    9.204 
Risk free rate   0.2%   0.3%   0.0%   0.2%
Dividend yield   0.0%   0.0%   0.0%   0.0%
Expected term/ Contractual life (years)    3.5 years       3.8 years     0.3 years     3.5 years 
Expected volatility   121.8%   119.5%   214.5%   121.8%
Warrants holder  Investor Warrants   Placement Agent Warrants 
Appraisal Date (Inception Date)  Series A1
March 31,
2021		   Series A2
March 31,
2021		   Series B
March 31,
2021		   March 31,
2021		 
Market price per share (USD/share)  $5.10   $5.10   $5.10   $5.10 
Exercise price (USD/price)   7.67    7.67    7.83    9.204 
Risk free rate   0.5%   0.5%   0.0%   0.5%
Dividend yield   0.0%   0.0%   0.0%   0.0%
Expected term/ Contractual life (years)    3.4 years       3.6 years     0.1 years     3.4 years 
Expected volatility   123.5%   121.6%   110.5%   123.5%
Schedule of warrants liability measured at fair value on a recurring basis using Level 3 inputs
   Three months ended
March 31,		 
   2020   2021 
Balance at the beginning of period  $-   $17,783,000 
Warrants issued to institution investors   -    47,519,000 
Warrants issued to placement agent   -    2,346,000 
Warrants redeemed   -    - 
Fair value change of warrants included in earnings   -    (28,426,000)
Balance at end of period   -    39,222,000 
Schedule of the warrant activity
   Number of
Warrants		   Average
Exercise Price		   Weighted
Average
Remaining
Contractual
Term in
Years		 
             
Outstanding at January 1, 2021   4,175,512   $6.46    3.0 
Exercisable at January 1, 2021   3,795,920   $6.46    2.9 
Granted   11,621,967    7.79    2.3 
Exercised / surrendered   -    -      
Expired   -    -      
Outstanding at March 31, 2021   15,797,479   $7.44    2.3 
Exercisable at March 31, 2021   14,970,888   $7.41    2.3