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SHAREHOLDERS' EQUITY (Tables)
6 Months Ended
Jun. 30, 2018
SHAREHOLDERS' EQUITY  
Schedule of Black-Scholes pricing model to determine the fair value of warrants

 

 

 

 

Risk-free interest rate

 

1.56

%

Dividend yield

 

0.36

%

Volatility factor of the expected market price of common stock

 

71

%

Weighted-average expected life

 

53 weeks

 

Weighted-average grant date fair value

$

0.40