Stock Award Plans and Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

	Years ended December 31,

	2012		2011		2010
Weighted-average expected volatility	97.8%-113.55	%	97.8	%	97.8	%
Weighted-average expected term	3.8-6.1 years		6.1 years		6.2 years
Risk-free interest rate	0.45%-1.37	%	1.1%-2.4	%	1.5%-2.0	%
Expected dividend yield	0	%	0	%	0	%

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value

	(in thousands)					(years)		(in thousands)
Outstanding at December 31, 2009		17,368		$	6.43
Granted		5,310			1.61
Exercised		(704	)		0.79
Canceled		(333	)		1.23
Expired		(2,693	)		18.26

Outstanding at December 31, 2010		18,948			3.70

Granted		4,662			1.70
Exercised		(372	)		0.77
Canceled		(654	)		1.43
Expired		(1,491	)		12.38

Outstanding at December 31, 2011		21,093			2.76

Granted		4,077			.93
Exercised		(1,148	)		.84
Canceled		(1,225	)		1.43
Expired		(1,537	)		7.71

Outstanding at December 31, 2012		21,260		$	2.24		6.39	$	4,607

Exercisable at December 31, 2012		11,680		$	2.99		5.59	$	2,591

Options Vested or Expected to Vest at December 31, 2012(1)		20,558		$	2.27		6.44	$	2,015

(1): In addition to the vested options, the Company expects a portion of the unvested options to vest at some point in the future. Options expected to vest is calculated by applying an estimated forfeiture rate to the unvested options.

	Shares/units			Weighted-Average Grant Date Fair Value per Share

	(in thousands)
Outstanding at December 31, 2009		604		$	5.90
Granted		695			1.72
Vested		(1,052	)		3.30
Forfeited		(19	)		2.94

Outstanding at December 31, 2010		228		$	5.38
Granted		121			2.50
Vested		(196	)		5.81
Forfeited		(2	)		6.01

Outstanding at December 31, 2011		151		$	2.52
Granted		864			1.65
Vested		(47	)		2.82
Forfeited		(7	)		1.62

Outstanding at December 31, 2012		961		$	1.73