Stock-Based Compensation (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 Company used the Black-Scholes option-pricing model with the following weighted-average assumptions to value options granted in 2013: 

	2013
Dividend yield	—	%
Expected volatility	77.2	%
Risk-free interest rate	1.1	%
Expected option lives	6.0 years

Schedule of Share-based Compensation, Stock Options, Activity

The following table presents the activity related to stock options for the three months ended March 31, 2014 and 2013:

	Options		Weighted- average exercise price		Weighted- average remaining contractual term (years)	Aggregate intrinsic value (000)
Options outstanding at January 1, 2014	111,571		$	38.92	6.2	$	—
Canceled / forfeited	(336	)	77.04		N/A	N/A
Expired	(4,569	)	129.60		N/A	N/A
Options outstanding at March 31, 2014	106,666		$	34.91	6.2	$	0.6
Options exercisable at March 31, 2014	88,172		$	40.99	5.7	$	—
Options outstanding at January 1, 2013	139,446		$	53.66	6.2	$	79.4
Granted	5,507		6.80		10.0	—
Canceled / forfeited	(3,010	)	47.20		N/A	N/A
Expired	(10,806	)	90.72		N/A	N/A
Options outstanding at March 31, 2013	131,137		$	48.50	6.6	$	88.2
Options exercisable at March 31, 2013	92,781		$	66.45	5.5	$	56.8

Schedule of Nonvested Restricted Stock Units Activity

The following table presents the activity related to nonvested restricted stock for the three months endedMarch 31, 2014:

	Number of shares		Weighted- average grant date fair value per share
Nonvested as of January 1, 2014	354,270		$	9.41
Granted	3,937		5.08
Vested	(68,673	)	6.25
Canceled / forfeited	(2,250	)	5.78
Nonvested as of March 31, 2014	287,284		$	10.14