Equity (Details Textual 1) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				3 Months Ended		1 Months Ended									1 Months Ended						3 Months Ended		1 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Warrants Issued to SG Phoenix [Member]	Mar. 31, 2013 Warrants Issued to SG Phoenix [Member]	Mar. 31, 2014 Warrants Issued to Unrelated Parties [Member]	Mar. 31, 2013 Warrants Issued to Unrelated Parties [Member]	Mar. 31, 2014 Series D Preferred Stock [Member]	Feb. 28, 2014 Series D Preferred Stock [Member]	Dec. 31, 2013 Series D Preferred Stock [Member]	May 31, 2013 Series D Preferred Stock [Member]	Mar. 31, 2014 Series D One Preferred Stock [Member]	Feb. 28, 2014 Series D One Preferred Stock [Member]	Dec. 31, 2013 Series D One Preferred Stock [Member]	May 31, 2013 Series D One Preferred Stock [Member]	Feb. 07, 2014 Series D One Preferred Stock [Member] Subsequent Event [Member]	Mar. 31, 2014 Series D Two Preferred Stock [Member]	Feb. 28, 2014 Series D Two Preferred Stock [Member]	Dec. 31, 2013 Series D Two Preferred Stock [Member]	May 31, 2013 Series D Two Preferred Stock [Member]	Feb. 07, 2014 Series D Two Preferred Stock [Member] Subsequent Event [Member]	Dec. 31, 2013 Series D Two Preferred Stock For Cash [Member]	Mar. 31, 2014 February And March Two Thousand Fourteen Note And Warrant Purchase Agreement [Member] Contingent Warrants [Member]	Mar. 31, 2014 February And March Two Thousand Fourteen Note And Warrant Purchase Agreement [Member] Contingent Warrants [Member] Subsequent Event [Member]	Nov. 30, 2012 Series D Financing [Member]
Subsidiary, Sale of Stock [Line Items]
Preferred Units, Issued										230,000
Preferred Units, Components														1	2				4	1
Preferred Units, Description										Units of Series D Preferred Shares consisting of one (1) share of Series D-1 Preferred Stock with an exercise price of $0.0025 per share and four (4) shares of Series D-2 Preferred Stock at an exercise price of $0.05 per share.
Proceeds from sale of stock, net							$ 406	$ 733	$ 870	$ 1,150
Administrative fee paid to SG Phoenix							4	47	40
Number of shares sold in private placement											273,000	520,000	607,000			137,000	260,000	303,000
Conversion of short-term debt and accrued interest, net of offering costs									1,179															3,099
Shares issued in debt conversion													786,000					393,000
Warrant coverage, maximum percentage							100.00%	100.00%	100.00%
Fair Value Assumptions, Expected Term			3 years		3 years				3 years
Number of shares of Series D-2 Preferred Stock exchanged into Series D-1 Preferred Stock									537,000
Warrants, expiration date							Dec. 31, 2016	Dec. 31, 2016
Number of common shares callable by warrants				3,000,000		1,600,000																89,421,000	29,952,000
Number of common shares, reserved for issuance upon exercise of outstanding warrants	94,240,000
Purchase price per share for the shares sold in private placement																					$ 1.00
Fair value of contingent warrants																						566
Debt Instrument, Convertible, Beneficial Conversion Feature	$ 306																					$ 305