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Income Taxes (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Income Taxes (Textual) [Abstract]        
Effective income tax rate continuing operations 27.30% 32.00% 16.50% 32.00%
Amount of error corrections and prior period adjustments     $ 371,000  
Effective income taxes percentage before prior period adjustment     30.60% 32.00%