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STOCKHOLDERS' EQUITY (Tables)
9 Months Ended
Sep. 30, 2016
Equity [Abstract]  
Schedule of share-based compensation activity
Number of
Options Outstanding
 
Number of RSU's
Outstanding
 
 
 
 
 
Outstanding 2013 & 2014 Plans – December 31, 2015
1,510,832

 
Non vested - December 31, 2015
408,710

Options granted
295,000

 
Shares granted
200,000

Options exercised
(67,000
)
 
Shares vested
(156,963
)
Options forfeited
(20,000
)
 
Shares forfeited
(20,000
)
Options expired

 
Shares expired

 
 
 
Non Vested & Outstanding - September 30, 2016
431,747

Outstanding – September 30, 2016
1,718,832

 
 
 
 
 
 
 
 
Exercisable – September 30, 2016
1,263,844

 
 
 
Schedule of Weighted average Black-Scholes Option Pricing Model Assumptions
The Company estimates the fair values of stock options using the Black-Scholes option-pricing model. The assumptions used in the Black-Scholes option-pricing model and the weighted-average grant date fair value of the option awards for the periods presented were as follows:

 
Three Months Ended September 30
 
Nine Months Ended
September 30,
 
2015
 
2016
 
2015
Volatility
110%
 
149% - 152%
 
94% - 112%
Expected term (in years)
6
 
7
 
6
Risk-free rate
1.66%
 
1.22% - 1.26%
 
1.54% - 1.64%
Expected dividend yield
0%
 
0%
 
0%
Weighted-average grant date fair value
$1.19
$
0.96 - 1.15
$
1.16 - 1.18