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STOCKHOLDERS' EQUITY - Schedule of Stock-Based Compensation Assumptions (Details) - $ / shares
Dec. 11, 2019
Nov. 01, 2019
Oct. 18, 2019
Aug. 06, 2019
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Current stock price       $ 0.83      
Exercise price       $ 0.83      
Risk-free interest rate       1.73%      
Expected volatility       123.00%      
8.5% Warrants [Member]              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Interest rate (as a percent)         8.50%    
15% Warrants              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Interest rate (as a percent)         15.00% 15.00% 15.00%
Pre-Trigger [Member] | 8.5% Warrants [Member]              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Current stock price $ 0.67 $ 0.70 $ 0.95        
Exercise price $ 0.68 $ 1.00 $ 2.35        
Risk-free interest rate 1.61%            
Risk-free interest rate   1.55% 2.21%        
Expected term (in years) 4 months 9 days 5 months 19 days 10 months 20 days        
Expected volatility 113.00% 114.00% 123.00%        
Pre-Trigger [Member] | 15% Warrants              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Current stock price $ 0.67 $ 0.70 $ 0.55        
Exercise price $ 0.68 $ 1.00 $ 0.45        
Risk-free interest rate 1.61% 1.55%          
Expected term (in years) 4 years 5 months 19 days 4 years 6 months 29 days          
Expected volatility 113.00% 114.00%          
Pre-Trigger [Member] | 15% Warrants | Minimum              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Risk-free interest rate     0.18%        
Expected term (in years)     7 months 6 days        
Expected volatility     88.00%        
Pre-Trigger [Member] | 15% Warrants | Maximum              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Risk-free interest rate     0.22%        
Expected term (in years)     2 years 7 months 6 days        
Expected volatility     116.00%        
Post-Trigger [Member] | 8.5% Warrants [Member]              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Current stock price $ 0.67 $ 0.70 $ 0.95        
Exercise price $ 0.45 $ 0.68 $ 1.00        
Risk-free interest rate 1.61%            
Risk-free interest rate   1.55% 2.21%        
Expected term (in years) 4 months 9 days 5 months 19 days 10 months 20 days        
Expected volatility 113.00% 114.00% 123.00%        
Post-Trigger [Member] | 15% Warrants              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Current stock price $ 0.67 $ 0.70 $ 0.55        
Exercise price $ 0.45 $ 0.68 $ 0.40        
Risk-free interest rate 1.61% 1.55%          
Expected term (in years) 4 years 5 months 19 days 4 years 6 months 29 days          
Expected volatility 113.00% 114.00%          
Post-Trigger [Member] | 15% Warrants | Minimum              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Risk-free interest rate     0.18%        
Expected term (in years)     7 months 6 days        
Expected volatility     88.00%        
Post-Trigger [Member] | 15% Warrants | Maximum              
STOCKHOLDERS' EQUITY (Details) Schedule Of Share-based Compensation Assumptions [Line Items]              
Risk-free interest rate     0.22%        
Expected term (in years)     2 years 7 months 6 days        
Expected volatility     116.00%