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Common Stock, Preferred Stock and Warrants (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value of Warrant Estimated Using Black-Scholes Method
The fair value of the warrant was estimated using the Black-Scholes method, using assumptions consistent with our application of ASC 505-50,  Equity-Based Payments to Non-Employees  (“ASC 505-50”), which are as follows:

   
September 12,
 
   
2012
 
Risk-free interest rate
   
0.70
%
Expected volatility
   
42.28
%
Expected life (years)
   
5.0
 
Expected dividend yield
   
2.5
%