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Basis of Presentation and Summary of Significant Accounting Policies (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Accounting Policies [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 72,000 27,000 57,000 34,000