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Common Stock (Details 4)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Expected term (based upon historical experience)   7 days
Expected volatility 130.36% 115.86%
Expected dividends 0.00% 0.00%
Risk free interest rate 0.01% 0.08%
Maximum [Member]
   
Expected term (based upon historical experience) 6 years  
Minimum [Member]
   
Expected term (based upon historical experience) 5 years