Stockholders' Equity - Common and Preferred Shares (Tables)

3 Months Ended

Mar. 31, 2013

Stockholders' Equity - Common and Preferred Shares [Abstract]

Summary of Company's outstanding common stock warrants

				Number of Warrants outstanding as of: (In thousands)
Warrants Issued in Connection with:	Date of Issuance	Exercise Price		March 31, 2013		December 31, 2012
Committed Equity Financing Facility	February 19, 2008	$	657.60		1		1
Direct Registration Series I Warrants	July 20, 2009	$	504.00		12		12
Total Warrants Outstanding					13		13

Summary of the Company's stock option activity under its 2005 Plan

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value
	(In thousands)					(Years)		(In thousands)
Options outstanding at December 31, 2012		143		$	19.73		8.64	$	—
Granted		76		$	4.38
Forfeited and expired		(29	)	$	13.95
Options outstanding at March 31, 2013		190		$	14.49		7.96	$	—
Options exercisable at March 31, 2013		83		$	20.65		5.92	$	—
Options vested or expected to vest at March 31, 2013		146		$	16.21		7.38	$	—

Weighted-average assumptions

Weighted Average Assumptions
Risk-free interest rate	0.77	%
Expected life (years)	4
Expected volatility	101	%
Dividend yield	0.00	%