Summary of Significant Accounting Policies (Details 3) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Numerator:
Net income (loss) available to common shareholders	$ (1,088)	$ 5,064	$ 2,500	$ 34,041
Effect of dilutive securities
Hybrid financial instruments	(1,369)	4,495	(2,542)	28,549
Derivative liability - warrants	38	90	618	3,514
Derivative liability - Series C and D preferred stock and debentures	29	31	273	2,029
Denominator:
Weighted average shares used to compute basic income (loss) per common share (in shares)	1,357,349,653	4,984,827,279	810,443,147	3,823,483,604
Effect of dilutive securities:
Hybrid financial instruments (in shares)			416,245,491		15,619,639
Denominator for diluted income (loss) per common share (in shares)	1,395,781,353	5,023,258,979	848,874,847	3,861,915,304
Basic income (loss) per common share (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Diluted income (loss) per common share (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Numerator [Member]
Numerator:
Net income (loss) available to common shareholders	(1,088)	5,064	2,500	34,041
Effect of dilutive securities
Hybrid financial instruments	0	261	0	24,314
Derivative liability - warrants	0	90	0	3,514
Derivative liability - Series C and D preferred stock and debentures	0	31	0	2,029
Numerator for diluted income (loss) per common share	$ (1,088)	$ 5,446	$ 2,500	$ 63,898
Denominator [Member]
Denominator:
Weighted average shares used to compute basic income (loss) per common share (in shares)	1,357,349,653	4,984,827,279	810,443,147	3,823,483,604
Effect of dilutive securities:
Hybrid financial instruments (in shares)	0	32,949,714	32,949,714	32,949,714
Derivative liability - warrants (in shares)	0	2,083,292	2,083,292	2,083,292
Derivative liability - Series C and D preferred stock and debentures (in shares)	0	3,398,694	3,398,694	3,398,694
Denominator for diluted income (loss) per common share (in shares)	1,357,349,653	5,023,258,979	848,874,847	3,861,915,304