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Net Loss Per Share (Tables)
 9 Months Ended
Sep. 30, 2012
Net Loss Per Share [Abstract]  
Basic and diluted for Net Loss Per Share
 
   
Three Months ended
  
(in thousands, except per share amounts)
  
September 30,
  
   
2012
    
2011
  
BASIC AND DILUTED
            
Weighted average number of
            
common shares outstanding
    
33,021
      
27,934
  
Number of shares for computation of
                
net loss per share
    
33,021
      
27,934
  
Net loss
  
$
(2,144
)
  
$
(1,930
)
                 
Net loss per share - basic and diluted
  
$
(0.06
)
  
$
(0.07
)
 
   
Nine Months ended
  
(in thousands, except per share amounts)
  
September 30,
  
   
2012
    
2011
  
BASIC AND DILUTED
            
Weighted average number of
            
common shares outstanding
    
32,934
      
26,050
  
Number of shares for computation of
                
net loss per share
    
32,934
      
26,050
  
Net loss
  
$
(7,159
)
  
$
(14,373
)
                 
Net loss per share - basic and diluted
  
$
(0.22
)
  
$
(0.55
)