XML 48 R31.htm IDEA: XBRL DOCUMENT v3.20.1
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Potentially dilutive securities 9,225,014 7,487,595
Stock Options    
Potentially dilutive securities 6,753,354 5,599,435
Restricted stock units    
Potentially dilutive securities 333,500 0
Warrants    
Potentially dilutive securities 2,138,160 1,888,160