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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2015
Stock-Based Compensation [Abstract]  
Schedule of Fair Value Assumptions used in valuing Stock Options

 

Six Months Ended

June 30,

2015


2014

 

 

 

Volatility

68% - 76%


73%

Risk-free interest rate

1.34% - 2.00%


1.93%

Expected term

6.25 years - 6.7 years


6.25 years

Schedule of Stock Option Activity

 

Number of
Shares



Weighted
Average
Exercise
Price



Weighted
Average
Fair
Value


Weighted
Average
Remaining
Contractual Life

Outstanding at December 31, 2014

805,840

$

              5.51

$

                     3.47

8.6

Granted at market price

272,000


5.79



 


 

Exercised

(35,075

)


0.83



 


 

Forfeited

(58,275

)


5.66



 


 

Outstanding at June 30, 2015

984,490



5.63



3.57


8.5

Exercisable at June 30, 2015

301,535


$

                   5.28


$

                   3.21


7.6