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Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2012
Quarterly Financial Data (Unaudited) [Abstract]  
Quarterly Financial Date (Unaudited)
18.  Quarterly Financial Data (Unaudited)

The Company’s quarterly financial information has not been audited but, in management’s opinion, includes all adjustments necessary for a fair presentation.
 
(in thousands, except per share data)
          
   
Year ended December 31, 2012 Quarterly Data
 
   
First
  
Second
  
Third
  
Fourth
 
   
Quarter
  
Quarter
  
Quarter
  
Quarter
 
Contract revenue
 $13,389  $13,183  $13,009  $12,665 
Operating income (loss)
  218   560   1,356   (137)
Net income (loss)
  530   158   816   (330)
Basic income (loss) per common share
 $0.03  $0.01  $0.04  $(0.02)
Diluted income (loss) per common share
 $0.03  $0.01  $0.04  $(0.02)
                  
   
Year ended December 31, 2011 Quarterly Data
 
   
First
  
Second
  
Third
  
Fourth
 
   
Quarter
  
Quarter
  
Quarter
  
Quarter
 
Contract revenue
 $12,322  $11,257  $12,549  $14,998 
Operating income (loss)
  (287)  248   975   1,292 
Net income (loss)
  1,013   (244)  858   1,174 
Basic income (loss) per common share
 $0.05  $(0.01) $0.05  $0.06 
 
                
Diluted income (loss) per common share
 $0.05  $(0.01) $0.05  $0.06