Long-Term Notes (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	6 Months Ended			6 Months Ended	0 Months Ended	6 Months Ended			0 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 8% Senior Convertible Note [Member]	Feb. 12, 2012 8% Senior Convertible Note [Member] CEVC [Member]	Jun. 30, 2012 8% Senior Convertible Note [Member] CEVC [Member]	Jun. 30, 2012 8% Senior Convertible Note [Member] CEVC [Member] Jonway Capital Stock [Member]	Jun. 30, 2012 Maximum [Member]	Jan. 12, 2011 Amended [Member] 8% Senior Convertible Note [Member] CEVC [Member]	Jun. 30, 2012 Amended [Member] 8% Senior Convertible Note [Member] CEVC [Member]	Jan. 12, 2011 Amended [Member] Maximum [Member] 8% Senior Convertible Note [Member] CEVC [Member]
Debt Instrument [Line Items]
Senior Secured convertible note, principal amount	$ 18,916,000		$ 19,000,000		$ 20,700,000				$ 19,000,000
Term of exercisable warrant									2 years
Warrant issued											20
Warrant, exercise price									$ 0.50
Senior Secured convertible note, maturity date						Feb. 12, 2012				Aug. 12, 2013
Warrant, maturity date						Feb. 12, 2014
Interest accrued					1,700,000
Interest rate					8.00%			9.47%
Debt instrument, discount						2,200,000
Debt instrument, amount amortized	410,000	8,108,000				408,000
Principle amount of debt used in applying conversion				$ 1,000
Debt instrument, conversion rate							0.00003743
Debt instrument, number of shares per $1,000 principal if converted				4,435