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Income Taxes (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Income Taxes (Textual) [Abstract]        
Effective income tax rate continuing operations 30.90% 31.90% (78.90%) 32.00%
Amount of error corrections and prior period adjustments     $ 371,000  
Effective income taxes percentage before prior period adjustment     18.90% 32.00%