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Earnings Per Share (Details Textual)
3 Months Ended
Mar. 31, 2013
Stock options [Member]
 
Earnings Per Common Share (Textual) [Abstract]  
Stock options, restricted stock and warrants excluded from the computation of diluted earnings per share 482,716
Restricted stock [Member]
 
Earnings Per Common Share (Textual) [Abstract]  
Stock options, restricted stock and warrants excluded from the computation of diluted earnings per share 302,364