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Equity Transactions Equity Transactions (Tables)
3 Months Ended
Mar. 31, 2014
Equity [Abstract]  
Schedule of Assumptions Used
At March 31, 2014, our outstanding warrants were valued using the Black-Scholes option pricing model. This is a Level 3 measurement using the following assumptions:
 
March 31, 2014
Risk-free interest rate
1.9
%
Dividend yield
%
Expected volatility
74
%
Expected life (years)
6.0