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Stock-Based Compensation Plans (Tables)
9 Months Ended
Sep. 30, 2013
Fair Value of Stock Options Grants

The Company used the Black Scholes option pricing model to determine the fair value of stock option grants, using the following assumptions during the nine months ended September 30, 2013 and 2012:

 

 

2013

 

2012

Weighted average expected term

6.25 years

 

6.17 years

Weighted average volatility

  111

%

 

  134

%

Weighted average risk-free interest rate

  1.3

%

 

  1.0

%

Dividend yield

  0

%

 

  0

%

 

Summary of Stock Option Activity Under the Option Plan

A summary of stock option activity under the Option Plan for the nine months ended September 30, 2013 is presented below:

 

 

Shares
Under
Option

 

  

Weighted
Average
Exercise
Price

 

  

Weighted
Average
Remaining
Contractual
Life

 

  

Aggregate
Intrinsic
Value

 

Outstanding at January 1, 2013             

 

  1,501,500

  

  

$

  0.95

  

  

 

 

 

  

 

 

 

Granted             

 

  356,000

  

  

$

  0.37

  

  

 

 

 

  

 

 

 

Exercised             

 

  

  

$

  

  

 

 

 

  

 

 

 

Forfeited             

 

(374,500

)

  

$

  0.88

  

  

 

 

 

  

 

 

 

Outstanding at September 30, 2013             

 

  1,483,000

  

  

$

  0.83

  

  

 

7.0 years

  

  

$

  75

  

Exercisable at September 30, 2013             

 

  843,997

  

  

$

  1.04

  

  

 

5.7 years

  

  

$

  75

  

 

Summary of Status of the Company's Non-Vested Share Awards

A summary of status of the Company’s non-vested share awards as of and for the nine months ended September 30, 2013 is presented below:

 

 

Nonvested Shares
Under Option

 

  

Weighted Average
Grant Date Fair Value

 

Non-vested at January 1, 2013             

 

  690,877

  

  

$

  0.69

  

Granted             

 

  356,000

  

  

$

  0.31

  

Vested             

 

(251,999

)

  

$

  0.77

  

Forfeited             

 

(155,875

)

  

$

  0.81

  

Non-vested at September 30, 2013             

 

  639,003

  

  

$

  0.49