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Fair Value Measurement of Assets and Liabilities (Details) (USD $)
6 Months Ended
Jun. 30, 2011
Dec. 31, 2011
Fair value assumptions and methodology for assets and liabilities    
Annual dividend yield     
Fair value measurement of assets and liabilities (Textual)    
Fair value of embedded conversion features   $ 0
Minimum [Member]
   
Fair value assumptions and methodology for assets and liabilities    
Expected life (years) 29 days  
Risk-free interest rate 0.08%  
Expected volatility 110.00%  
Maximum [Member]
   
Fair value assumptions and methodology for assets and liabilities    
Expected life (years) 3 years  
Risk-free interest rate 1.27%  
Expected volatility 263.00%