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Earnings Per Share (Details Textual)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Common Stock [Member]
   
Earnings Per Share (Textual) [Abstract]    
Anti-dilutive shares not included in the computation of basic and diluted income per share 1,675,644  
Restricted stock [Member]
   
Earnings Per Share (Textual) [Abstract]    
Anti-dilutive shares not included in the computation of basic and diluted income per share 66,912 2,112,565
Stock Option [Member]
   
Earnings Per Share (Textual) [Abstract]    
Anti-dilutive shares not included in the computation of basic and diluted income per share 205,125