Share-Based Compensation and Warrants (Tables)

6 Months Ended

Jun. 30, 2014

Summary of Stock Option

The following table summarizes stock option activity under the 2008 Long-Term Incentive Plan and the 2000 Equity Incentive Plan for the six months ended June 30, 2014:

					Weighted
					Average
			Weighted		Remaining
			Average		Contractual
	Options		Exercise Price		Life (Years)
Outstanding at December 31, 2013		548,566	$	58.22
Granted		—		—
Exercised		—		—
Outstanding at June 30, 2014		548,566	$	58.22		7.25
Exercisable at June 30, 2014		352,061	$	45.10		6.50

Summary of Fair Value Option Assumption

The fair values of option awards granted during the periods presented were estimated at the grant date using a Black-Scholes option pricing model with the following assumptions: 

	2013		2014
Expected volatility	54.06% - 55.44%		n/a
Risk-free interest rate	0.91% - 1.10%		n/a
Expected life (in years)	5.19 - 6.00		n/a
Expected dividend yield		0.00%	n/a