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Discontinued Operations and Divestitures (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Loss from discontinued operations, net of tax    
Revenue      
Loss from operations of discontinued operations, before income tax benefit (5) (6)
Income tax benefit 2 2
Loss from operations of discontinued operations, net of tax $ (3) $ (4)