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Stock Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2013
Stock-Based Compensation  
Summary of option activity under all plans

The following is a summary of option activity under all plans (in thousands, except per option data):

 

 

 

Number 
of Options

 

Weighted 
Average
 Exercise
Price

 

Average
Remaining
Contractual
Life (Years)

 

Aggregate 
Intrinsic
 Value

 

Outstanding, December 31, 2012

 

5,592

 

$

0.21

 

3.21

 

$

6,500

 

Granted

 

—

 

—

 

 

 

 

 

Exercised

 

—

 

—

 

 

 

 

 

Forfeited

 

—

 

—

 

 

 

 

 

Expired

 

—

 

—

 

 

 

 

 

Outstanding, March 31, 2013

 

5,592

 

$

0.21

 

3.00

 

$

3,900

 

Exercisable, March 31, 2013

 

5,042

 

$

0.21

 

2.36

 

$

3,500