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Earnings per Common Share (Details Textual) (Restricted Stock [Member])
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2011
Restricted Stock [Member]
   
Earnings Per Share (Textual) [Abstract]    
Unvested awards excluded from diluted weighted-average common shares, as their effect would have been anti-dilutive 132,829 132,829