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STOCKHOLDERS' EQUITY (DEFICIT) & STOCK-BASED COMPENSATION (Details)
3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Line Items]    
Risk-free interest rates 0.86%  
Expected life (years) 5 years 9 months  
Minimum [Member]    
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Line Items]    
Risk-free interest rates 0.81% 0.31%
Volatility 89.00% 123.00%
Expected life (years) 5 years 5 years
Maximum [Member]    
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Line Items]    
Risk-free interest rates 0.87% 0.37%
Volatility 366.00% 128.00%
Expected life (years) 6 years 6 years