Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Weighted Average Number of Shares [Table Text Block]

	Three Months Ended
	March 31, 2012		March 31, 2013
Income (loss) from continuing operations	$	160	$	(560	)
Basic weighted-average common shares outstanding	56,030		58,001
Assumed exercise of dilutive stock options and restricted stock	528		—
Diluted weighted-average common shares outstanding	56,558		58,001
Income (loss) from continuing operations:
Basic earnings per share	$	—	$	(0.01	)
Diluted earnings per share	$	—	$	(0.01	)

Outstanding equity awards not included in calculation of diluted net loss per share

Outstanding equity awards not included in the calculation of diluted net income (loss) per share because their effect was anti-dilutive were as follows:

	March 31, 2012			March 31, 2013
	Number of Potential Shares	Range of Exercise Prices		Number of Potential Shares	Range of Exercise Prices
Stock options	9,312,258	$1.55 - $16.36		9,159,312	$0.47 - $16.36
Unvested stock awards	1,147,085	$	—	508,221	$	—
Warrants	1,602,489	$	2.40	1,602,489	$	2.40