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Share-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Valuation Assumptions
The fair value of the stock options granted during the nine month period ended September 30, 2016, were estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions:

 
Nine Months Ended September 30,
 
2016
Expected life (years)
5.1
Expected volatility
81.0%
Expected dividend yield
—%
Risk-free interest rate
1.4%
Weighted average fair value of options granted during the period
$1.33
Schedule of Stock Option Activity
The following table summarizes stock option activity for the nine month period ended September 30, 2016:
 
 
Number of Options
 
Weighted Average Exercise Price Per Option
 
Weighted Average remaining Contractual Life (years)
 
Aggregate Intrinsic Value (in thousands)
Outstanding balance at December 31, 2015
 
286,568

 
$
6.46

 
 
 
 
Granted
 
153,332

 
2.05

 
 
 
 
Exercised
 

 

 
 
 
 
Forfeited and Expired
 
(46,690
)
 
5.43

 
 
 
 
Outstanding balance at September 30, 2016
 
393,210

 
4.87

 
8.23
 
$0
Options exercisable at September 30, 2016
 
177,807

 
$
7.15

 
7.07
 
$0