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SHARE-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of share- based compensation

We determine the fair value of option grant share-based awards at their grant date, using a Black-Scholes-Merton Option-Pricing Model applying the assumptions in the following table: 

 

    Three months ended March 31,
    2019   2018
Expected life (years)    N/A     N/A 
Dividend yield    N/A     N/A 
Expected volatility    N/A     N/A 
Risk free interest rates    N/A     N/A 
Weighted average fair value of options at grant date    N/A     N/A