Financing (Details 7) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
Debt Conversion [Line Items]
Warrants	499,990	499,990
Warrants, Fair Value	$ 247	$ 620
Warrants Issued With Debentures 2008 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2015	2015
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.000100	$ 0.000100
Warrants	238,079	238,079
Warrants, Fair Value	117	294
Warrants Issued With Debentures 2010 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2015	2015
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.000100	$ 0.000100
Warrants	81,340	81,340
Warrants, Fair Value	40	101
Warrants Issued With Debentures 2011 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2016	2016
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.000100	$ 0.000100
Warrants	58,256	58,256
Warrants, Fair Value	29	72
Warrants Issued With Debentures 2012 [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2017	2017
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.000100	$ 0.000100
Warrants	34,947	34,947
Warrants, Fair Value	17	43
Series D Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Warrants, Expiration Year	2017	2017
Warrants, Anti-Dilution Adjusted Exercise Price	$ 0.000100	$ 0.000100
Warrants	87,368	87,368
Warrants, Fair Value	$ 44	$ 110

Anti-dilution exercise price at which is effect of dilution will be offset.

No definition available.

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Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Year of expiration or mandatory redemption of the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction, in CCYY format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Details

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Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of warrants not settleable in cash classified as equity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant