General form of registration statement for all companies including face-amount certificate companies

SHARE-BASED COMPENSATION (Details) - Schedule of share-based payment award, stock options, valuation assumptions

v3.21.2
SHARE-BASED COMPENSATION (Details) - Schedule of share-based payment award, stock options, valuation assumptions
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Dec. 18, 2020
Dec. 31, 2019
SHARE-BASED COMPENSATION (Details) - Schedule of share-based payment award, stock options, valuation assumptions [Line Items]        
Risk-free interest rate 0.76% 0.43% 0.45%  
Expected dividend yield   0.00%   0.00%
Expected volatility 60.00% 60.00% 50.00% 80.00%
Minimum [Member]        
SHARE-BASED COMPENSATION (Details) - Schedule of share-based payment award, stock options, valuation assumptions [Line Items]        
Expected term   1 month 20 days   2 years 9 months 14 days
Risk-free interest rate   0.22%   1.30%
Expected volatility   85.00%    
Maximum [Member]        
SHARE-BASED COMPENSATION (Details) - Schedule of share-based payment award, stock options, valuation assumptions [Line Items]        
Expected term   5 years   5 years
Risk-free interest rate   0.41%   2.70%
Expected volatility   90.00%