Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2012

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of weighted-average assumptions used for grants made under the stock option plans

	2012
	Directors			Executives			Employees
Expected volatility		120.0-125.6	%		121.9-131.1	%		121.9	%
Expected term		6.8 years			6.8 years			6.8 years
Risk-free interest rate		1.04-1.38	%		0.99-1.07	%		0.99	%
Dividend yield		0	%		0	%		0	%
Annual forfeiture rate		14.5	%		14.5	%		14.5	%

	2011
	Directors			Executives			Employees
Expected volatility		83.7	%		82.7	%		82.7	%
Expected term		6.8 years			6.8 years			6.8 years
Risk-free interest rate		1.34	%		2.10	%		2.10	%
Dividend yield		0	%		0	%		0	%
Annual forfeiture rate		14.5	%		14.5	%		14.5	%

	2010
	Directors			Executives			Employees
Expected volatility		95.5	%		85.7	%		85.7	%
Expected term		6.8 years			6.8 years			6.8 years
Risk-free interest rate		2.17	%		3.14	%		3.20	%
Dividend yield		0	%		0	%		0	%
Annual forfeiture rate		14.5	%		14.5	%		14.5	%

Summary of transactions involving stock options awarded

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years		Aggregate Intrinsic Value
								(In thousands)
Outstanding at December 31, 2009		2,734,736		$	6.29		6.8
Granted		662,750		$	1.41
Expired		(183,500	)	$	37.99
Forfeited		(48,120	)	$	1.31
Outstanding at December 31, 2010		3,165,866		$	3.51		6.9	$	46
Granted		309,000		$	1.24
Exercised		(10,000	)	$	0.62
Expired		(110,266	)	$	13,92
Forfeited		(185,970	)	$	1.82
Outstanding at December 31, 2011		3,168,630		$	3.03		3.4	$	18
Granted		2,736,750		$	0.43
Expired		(1,709,020	)	$	3.67
Forfeited		(45,950	)	$	1.30
Outstanding at December 31, 2012		4,150,410		$	1.07		8.4	$	1,076
Vested and exercisable at December 31, 2012		1,111,606		$	2.54		5.4	$	16
Vested and expected to vest at December 31, 2012		3,496,447		$	1.14		8.2	$	952

Director Stock Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of transactions involving stock options awarded

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years		Aggregate Intrinsic  Value
								(In thousands)
Outstanding at December 31, 2009		121,000		$	15.59		2.7
Expired		(21,000	)	$	41.06
Outstanding at December 31, 2010		100,000		$	10.24		2.2
Expired		(21,000	)	$	13.88
Outstanding at December 31, 2011		79,000		$	9.27		1.7
Expired		(37,000	)	$	13.06
Outstanding at December 31, 2012		42,000		$	5.93		1.9
Vested and Exercisable at December 31, 2012		42,000		$	5.93		1.9	$	0

Non-Plan Options [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary of transactions involving stock options awarded

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years		Aggregate Intrinsic  Value
								(In thousands)
Outstanding at December 31, 2009		10,000		$	3.64		2.0
Expired		—			—
Outstanding at December 31, 2010		10,000		$	3.64		2.0
Expired		—			—
Outstanding at December 31, 2011		10,000		$	3.64		2.0
Expired		(5,000	)		3.15
Outstanding at December 31, 2012		5,000		$	4.12		0.5
Vested and Exercisable at December 31, 2012		5,000		$	4.12		0.5	$	0