Nature of Operations and Liquidity (Details) (USD $)	3 Months Ended		9 Months Ended						9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Oct. 17, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 26, 2005 Senior Notes [Member]	Sep. 30, 2012 MHR Promissory Notes [Member]	Sep. 27, 2012 MHR Promissory Notes [Member]
Debt Instrument [Line Items]
Senior Secured Convertible Notes interest rate								13.00%
Non-interest bearing promissory notes	$ 600,000		$ 600,000			$ 575,000				$ 600,000
Maturity date of Notes			Sep. 26, 2012						Sep. 26, 2012
Nature of Operations and Liquidity (Textual) [Abstract]
Cash and cash equivalents	229,000	4,729,000	229,000	4,729,000		3,069,000	5,326,000
Working capital deficiency	35,500,000		35,500,000
Stockholders' deficit	(66,850,000)		(66,850,000)			(64,527,000)
Accumulated deficit	(468,448,000)		(468,448,000)			(465,892,000)
Operating loss	(1,474,000)	(1,531,000)	(4,661,000)	(5,806,000)
Senior Secured Convertible Notes, effective date			2012-09-27
The amount payable in principal and interest due under the terms of MHR convertible notes at maturity			30,500,000
Promissory Note issued to MHR, principal amount					$ 1,400,000