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STOCKHOLDERS EQUITY (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Feb. 11, 2020
Feb. 21, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Preferred stock, par value       $ 0.0001   $ 0.0001
Preferred stock, shares authorized       10,000,000   10,000,000
Preferred stock, outstanding       0   0
Common stock, par value       $ 0.0001   $ 0.0001
Common stock, shares authorized       150,000,000   150,000,000
Underwritten public offering 23,500,000 3,525,000        
Common stock shares, issued       86,349,981   59,318,355
Gross proceeds from public offering $ 82,300,000 $ 12,300,000   $ 88,700,000    
Common stock, outstanding       86,349,981   59,318,355
Common stock reserved for outstanding       9,265,939    
Common stock issuable       54,384,080    
Warrants outstanding       2,138,160   2,138,160
Weighted average exercise price of warrants       $ 3.81    
Restricted stock units [Member]            
Unrecognized compensation expense recognition period       3 years 6 months    
Unrecognized compensation expense       $ 800,000    
Compensation expense     $ 0.1 $ 100,000    
Common stock granted       341,000    
Equity Incentive Plans [Member]            
Unrecognized compensation expense recognition period       2 years 7 months 6 days    
Options granted       1,232,500 1,429,100  
Weighted average remaining contractual life of stock options exercisable       5 years 7 months 6 days    
Weighted average remaining contractual life of stock options outstanding       6 years 10 months 24 days    
Unrecognized compensation expense       $ 5,100,000