Stock Plans, Share-Based Payments And Warrants (Tables)

12 Months Ended

Dec. 31, 2012

Stock Plans, Share-Based Payments And Warrants [Line Items]

Schedule Of Fair Value Assumptions

	Option Pricing Assumptions
Grant Year	2012			2011
Stock Price Volatility		123.48-128.54	%		121.96- 130.06	%
Risk-Free Interest Rates		0.93-1.32	%		1.08 - 2.42	%
Expected Life (in years)		5.75-6.25			5.00-5.50
Expected Dividend Yield		0	%		0	%

Summary Of Information About Stock Options Outstanding And Exercisable

	Options Outstanding						Options Exercisable
Range of Exercise Price	Number Outstanding as of December 31, 2012		Weighted Average Remaining Contractual Life in Years		Weighted Average Exercise Price		Number Exercisable as of December 31, 2012		Weighted Average Exercise Price
$0.41 - $2.60		2,251,700		9.01	$	0.94		736,635	$	0.77
$15.00 - $29.80		28,853		5.63	$	17.74		27,240	$	17.78
$34.20 - $96.00		14,161		1.36	$	52.99		14,160	$	52.99
Total Outstanding		2,294,714			$	1.46		778,035	$	2.26

Summary Of Option Activity

	Shares		Weighted Average Exercise  Price
Outstanding at December 31, 2011		747,164	$	2.14
Options granted		1,547,550		1.13
Options exercised		-		-
Options forfeited		-		-
Outstanding at December 31, 2012		2,294,714		1.46
Expected to vest at December 31, 2012		778,035	$	2.26
Exercisable at December 31, 2012		2,206,747	$	1.47

Summary Of Terms Of Outstanding Warrants

Title of Warrant	Date Issued		Expiry Date	Exercise Price		Total Common Shares Issuable
						2012		2011
Class D Warrants - Lambda		11/14/2007	3/10/2016	$	0.40		8,806,575		8,806,575
Class D Warrants - Other		11/14/2007	11/14/2012	$	0.40		-		447,197
Placement Agent Warrants		11/14/2007	11/14/2012	$	0.40		-		228,887
July 2009 Warrants		7/24/2009	7/24/2014	$	22.40		33,629		33,629
Shareholder Rights Offering Warrants		3/10/2011	3/10/2016	$	0.40		3,057,190		4,153,503
March 2011 Lambda Warrants		3/10/2011	3/10/2016	$	0.40		2,782,577		2,782,577
							14,679,971		16,452,368

Class D Warrants [Member]

Stock Plans, Share-Based Payments And Warrants [Line Items]

Summary Of Terms Of Outstanding Warrants

	Lambda Investors		Other Investors		Total Shares to be issued
As of December 31, 2010		359,541		9,937		369,478
Anti-dilution ratcheting provision		15,819,382		437,260		16,256,642
Surrendered - rights' offering		(7,372,348)		0		(7,372,348)
As of December 31, 2011		8,806,575		447,197		9,253,772
Exercised in 2012		-		(352,034)		(352,034)
Expired in 2012		-		(95,163)		(95,163)
As of December 31, 2012		8,806,575		-		8,806,575