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Loss per common share
 12 Months Ended
Dec. 31, 2012
Loss per common share [Abstract]  
Loss per common share
8.  Loss per common share

Basic and diluted loss per common share was computed as follows:

 
 
(in thousands, except per share amounts)
 
 
 
2012
  
2011
  
2010
 
Numerator:
 
  
  
 
   Net loss
 
$
(15,056
)
 
$
(36,670
)
 
$
(11,930
)
 
            
Denominator:
            
   Basic – weighted-average shares
  
17,852
   
17,589
   
17,275
 
   Effect of dilutive stock options
  
-
   
-
   
-
 
   Diluted – weighted-average shares
  
17,852
   
17,589
   
17,275
 
 
            
Basic loss per common share
 
$
(0.84
)
 
$
(2.08
)
 
$
(0.69
)
Diluted loss per common share
 
$
(0.84
)
 
$
(2.08
)
 
$
(0.69
)

Options totaling 365,000, 431,000 and 549,000 shares were outstanding but were not included in the calculation of diluted earnings per share for 2012, 2011 and 2010, respectively, as their exercise prices were greater than the average market price of the common shares.  The Company excluded all common stock equivalents in 2012, 2011, and 2010 as their effect was anti-dilutive due to the net loss.