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Loss Per Share (Details)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Number of shares excluded from the calculation of diluted loss per share 2,210,229 2,465,390
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 270,000 270,000