Quarterly report pursuant to Section 13 or 15(d)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - shares
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Potentially dilutive securities 7,762,763 4,779,625
Stock Options    
Potentially dilutive securities 5,624,603 4,251,465
Warrants    
Potentially dilutive securities 2,138,160 528,160