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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Outstanding Securities not Included in the Computation of Diluted Net Loss) (Details) - shares
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the computation of diluted net loss per share 1,760,336 941,882
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the computation of diluted net loss per share 501,242 227,337
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the computation of diluted net loss per share 909,189 460,876
Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the computation of diluted net loss per share 20,888 10,445
Convertible Notes [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the computation of diluted net loss per share 329,017 243,224