Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Shareholders' Equity [Abstract]

Summary of assumptions used to determine fair value of warrants

The preferred stock and detachable warrants were initially recognized based on their relative fair values at the date of issuance. As a result, the value allocated to the warrants was different than the estimated fair value of the warrants as of the grant date. 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)		10.0
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