Financing (Details 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Gain (loss) from change in fair value of derivative liability	$ 6,774	$ (89,649)
Series C Preferred Stock [Member]
Gain (loss) from change in fair value of derivative liability	(289)	(15,117)
Series D Preferred Stock [Member]
Gain (loss) from change in fair value of derivative liability	(21)	(3,292)
Debentures 2006 Series [Member]
Gain (loss) from change in fair value of derivative liability	11	(21,885)
Debentures 2008 Series [Member]
Gain (loss) from change in fair value of derivative liability	0	(14,741)
Debentures 2009 Series [Member]
Gain (loss) from change in fair value of derivative liability	0	(5,450)
Debentures 2010 Series [Member]
Gain (loss) from change in fair value of derivative liability	0	(11,935)
Debentures 2011 Series [Member]
Gain (loss) from change in fair value of derivative liability	0	(13,721)
Debentures 2012 Series [Member]
Gain (loss) from change in fair value of derivative liability	$ 0	$ (3,508)

Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44A, 44B

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44B

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 12-16, 44A, 44B

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44A

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details