Share-Based Compensation Arrangements (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of each SAR was estimated as of March 31, 2014 and 2013 using the following assumptions:

	March 31, 2014		March 31, 2013
Risk-free interest rate	0.12%-0.78%		0.24%-0.48%
Dividend yield	0.0	%	0.0	%
Expected life (years)	0.9-2.8 years		1.9-3.8 years
Volatility	61.77	%	64.99	%