Equity-based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock-Based Compensation Expense

Total stock-based compensation expense recognized using the straight-line attribution method in the Consolidated Statement of Operations is as follows:

	Three months ended					Six months ended
	June 30,					June 30,
	2013		2012			2013		2012
Stock option compensation expense for employees and directors	$	33	$	277		$	206	$	556
Equity awards for nonemployees issued for services		3		(2	)		3		26
Total stock-based compensation expense	$	36	$	275		$	209	$	582

Summary of Stock Option Activity

	Number of shares			Weighted- average exercise price		Weighted- average remaining contractual term (in years)		Aggregate intrinsic value
Outstanding at December 31, 2012		562,025		$	18.50		7.0	$	—
Granted		198,000		$	3.93
Exercised		—			—
Forfeited		(16,018	)	$	10.93
Outstanding at June 30, 2013		744,007		$	16.35		6.5	$	—
Exercisable at June 30, 2013		538,270		$	20.79		6.9	$	—

Details of Fair Value Option Award

The fair market value of the options was computed using the Black-Scholes option-pricing model with the following key weighted average assumptions for the six months ended as of the dates indicated:

	June 30, 2013			June 30, 2012
Expected life (years)		5.0 years			6.0 years
Interest rate		0.9	%		2.3	%
Dividend yield		—			—
Volatility		69	%		60	%