Financing (Details 9) (USD $) In Thousands, except Per Share data, unless otherwise specified					6 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 01, 2012	Apr. 26, 2012	Dec. 31, 2011	Jun. 30, 2012 Warrants Issued With Debentures 2007 [Member]	Dec. 31, 2011 Warrants Issued With Debentures 2007 [Member]	Jun. 30, 2012 Warrants Issued With Debentures 2008 [Member]	Dec. 31, 2011 Warrants Issued With Debentures 2008 [Member]	Jun. 30, 2012 Warrants Issued With Debentures 2010 [Member]	Dec. 31, 2011 Warrants Issued With Debentures 2010 [Member]	Jun. 30, 2012 Warrants Issued With Debentures 2011 [Member]	Dec. 31, 2011 Warrants Issued With Debentures 2011 [Member]	Jun. 30, 2012 Warrants Issued With Debentures 2012 [Member]	Dec. 31, 2011 Warrants Issued With Debentures 2012 [Member]	Jun. 30, 2012 Series D Preferred Stock [Member]	Dec. 31, 2011 Series D Preferred Stock [Member]
Expiration Year					2012		2015		2015		2016		2017		2017
Anti-Dilution Adjusted Exercise Price		$ 0.0093	$ 0.0117		$ 0.007125	$ 0.00998	$ 0.007125	$ 0.00998	$ 0.007125	$ 0.00998	$ 0.007125	$ 0.00998	$ 0.007125	$ 0	$ 0.007125	$ 0.00998
Warrants	1,996,665	1,000	1,000	1,601,629	210,526	401,002	860,526	614,662	294,035	210,025	210,526	150,376	105,263	0	315,789	225,564
Fair Value	$ 14,105			$ 14,942	$ 492	$ 1,510	$ 6,325	$ 6,876	$ 2,152	$ 2,335	$ 1,684	$ 1,686	$ 865	$ 0	$ 2,587	$ 2,535