Annual report pursuant to Section 13 and 15(d)

STOCK OPTIONS AND WARRANTS - Summary of Stock Options Pricing (Details)

v3.19.1
STOCK OPTIONS AND WARRANTS - Summary of Stock Options Pricing (Details) - Stock Option
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Dividend yield 0.00% 0.00%
Expected volatility, minimum 73.00% 78.00%
Expected volatility, maximum 78.00% 87.00%
Risk free interest rate, minimum 2.46% 1.73%
Risk free interest rate, maximum 3.00% 2.20%
Expected life (years) 5 years 5 years