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Income Taxes (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Income Taxes (Textual) [Abstract]    
Effective income tax rate continuing operation 31.30% 9.60%
Amount of error corrections and prior period adjustments. $ 371,000  
Effective income taxes percentage before prior period adjustment.   32.80%