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Summary of Significant Accounting Policies (Details 2) (Convertible Preferred Stock excluded from EPS [Member])
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Convertible Preferred Stock excluded from EPS [Member]
       
Schedule of anti-dilutive securities excluded from computation of earnings per share        
Potential common shares excluded from EPS 346,400 3,146,400 346,400 3,146,400