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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Stockholders' Equity Note [Abstract]  
Summary of assumptions used to determine fair value of warrants
The following assumptions were used to determine the fair value of the warrants as of the grant date:

Dividend yield
5.00
%
Expected life (years)
10

Expected volatility
49.56
%
Risk-free rate
2.80
%
Fair value per warrant at grant date
$
3.27

Relative fair value per warrant at grant date
$
3.49