Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Details)

v3.19.3
STOCK-BASED COMPENSATION (Details) - Time Based Shares Options [Member] - 2015 Stock Option Plan [Member] - USD ($)
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Dividend yield 0.00% 0.00%
Expected Volatility  
Weighted-average volatility
Expected dividends
Expected term (in years) 10 years 5 years
Risk-free rate  
Minimum [Member]    
Expected Volatility 56.10% 62.80%
Risk-free rate 1.60% 2.80%
Maximum [Member]    
Expected Volatility 60.70% 65.20%
Risk-free rate 2.72% 2.90%