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Net Loss Per Share (Tables)
6 Months Ended
Jun. 30, 2012
Net Loss Per Share  
Schedule of potentially dilutive common shares excluded from the net loss per common share calculations

 

 

 

Six months ended June 30,

 

 

 

2012

 

2011

 

 

 

 

 

 

 

Stock options

 

4,304,897

 

3,716,282

 

Restricted stock

 

12,000

 

12,000

 

 

 

4,316,897

 

3,728,282