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Loss Per Share (Narrative) (Details)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of shares excluded from the calculation of diluted loss per share 1,749,310 1,970,846
Warrant [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of shares excluded from the calculation of diluted loss per share   100,000