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Accounts Receivable (Tables)
 9 Months Ended
Sep. 30, 2013
Accounts Receivable [Abstract]  
Accounts receivable
 
(in thousands)
 
 
 
September 30,
  
December 31,
 
 
 
2013
  
2012
 
Government segment:
 
  
 
Billed
 
$
8,886
  
$
11,226
 
Advanced billings
  
(1,839
)
  
(3,561
)
 
  
7,047
   
7,665
 
Hospitality segment:
        
Accounts receivable - net
  
18,976
   
22,225
 
 
 
$
26,023
  
$
29,890