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SHAREHOLDERS' EQUITY (Tables)
6 Months Ended
Jun. 30, 2020
SHAREHOLDERS' EQUITY [Abstract]  
Schedule of Weighted-average Assumptions Used to Estimate Fair Value of Options Granted

The following table presents the assumptions used to estimate the fair value of the options granted in the periods presented:

Six months ended

June 30,

2020

2019

Unaudited

 

Volatility

55%-59%

54%-55%

Risk-free interest rate

0.5%-1.6%

2.2%-2.5%

Dividend yield

0%

0%

Expected life (years)

5.0-5.1

4.9-5.1