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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Reconciliation of the numerators and denominators used in computing basic and diluted net income per share Reconciliation of the numerators and denominators used in computing basic and diluted net income per share
In the money potential common shares [Member]
 
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Schedule of antidilutive securities excluded from computation of earnings per share Schedule of antidilutive securities excluded from computation of earnings per share
Out of Money Potential Common Shares [Member]
 
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Schedule of antidilutive securities excluded from computation of earnings per share Schedule of antidilutive securities excluded from computation of earnings per share
Convertible Preferred Stock excluded from EPS [Member]
 
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Schedule of antidilutive securities excluded from computation of earnings per share Schedule of antidilutive securities excluded from computation of earnings per share
Unvested restricted stock awards excluded from EPS [Member]
 
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Schedule of antidilutive securities excluded from computation of earnings per share Schedule of antidilutive securities excluded from computation of earnings per share