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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2015
STOCK-BASED COMPENSATION  
Schedule of weighted-average assumptions used for estimation of the fair value of the options granted under the Plan at the date of grant, using the Black-Scholes Option Valuation Model

   

 

 

Three months ended June 30,

 

Six months ended June 30,

 

 

 

2015

 

2014

 

2015

 

2014

 

Risk-free interest rate

 
1.12 

%

—

 
1.10 

%

—

 

Dividend yield

 
0 

%

—

 
0 

%

—

 

Volatility factor of the expected market price of common stock

 
72.90 

%

—

 
74.08 

%

—

 

Weighted-average expected life of option

 
3.5 

 

—

 
3.5 

 

—

 

Weighted-average grant date fair value

 

$
0.58 

 

—

 

$
0.56 

 

—