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6. FAIR VALUE MEASUREMENTS (Details Narrative) - $ / shares
1 Months Ended 12 Months Ended
Aug. 31, 2021
Jan. 28, 2021
Jan. 23, 2020
Dec. 31, 2021
Dec. 31, 2020
Risk free rate and discount rate 1.58% 1.35% 2.50%    
Market price of common stock $ 3.00 $ 3.10 $ 1.23    
Volatility 67.50% 80.00% 80.00%    
Extended term 15 years 15 years 15 years 6 years 6 years 6 months
Percent of probability of payment of dividend increased 90.00%        
Percent of probability of dividend paid in cash reduced 10.00%        
Risk free rate       1.00% 0.40%
May 2020 Note Exchange Transaction [Member]          
Volatility       86.00%  
Risk free rate       0.24%  
Risk free rate, maximum       8.00%  
Convertible instrument, maturity period       two and a half years  
Conversion ratio       1.43