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Earnings (Loss) Per Share (Details Textual)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings (Loss) Per Share (Textual) [Abstract]        
Antidilutive shares not included in computation of earnings per common share 15,328,251 1,275,244 15,328,251 1,275,244