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Goodwill And Other Intangible Assets (Amortization Expense For Intangible Assets) (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
2012 $ 1,598,000    
2013 1,435,000    
2014 1,295,000    
2015 1,295,000    
2016 1,295,000    
Intangible assets, Amortization expense 1,300,000 500,000 400,000
Hub [Member]
     
2012 745,000    
2013 582,000    
2014 442,000    
2015 442,000    
2016 442,000    
Mode [Member]
     
2012 853,000    
2013 853,000    
2014 853,000    
2015 853,000    
2016 $ 853,000