Stockholders' Equity (Details Textual 1) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended			12 Months Ended			12 Months Ended			2 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended					1 Months Ended		1 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended	24 Months Ended	12 Months Ended							1 Months Ended	12 Months Ended	2 Months Ended	7 Months Ended		12 Months Ended
	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Series A Preferred Stock [Member]	Dec. 31, 2011 Series A Preferred Stock [Member]	Dec. 31, 2010 Series A Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]	Dec. 31, 2011 Series B Preferred Stock [Member]	Dec. 31, 2010 Series B Preferred Stock [Member]	Mar. 31, 2012 Series C Preferred Stock [Member]	Dec. 31, 2012 Series C Preferred Stock [Member]	Dec. 31, 2011 Series C Preferred Stock [Member]	Dec. 31, 2010 Series C Preferred Stock [Member]	Dec. 31, 2012 Series D One Preferred Stock [Member]	Dec. 31, 2011 Series D One Preferred Stock [Member]	Dec. 31, 2012 Series D Two Preferred Stock [Member]	Dec. 31, 2011 Series D Two Preferred Stock [Member]	Sep. 20, 2011 September Two Thousand Eleven Note And Warrant Purchase Agreement [Member]	Dec. 20, 2011 December Two Thousand Eleven Note And Warrant Purchase Agreement [Member]	Apr. 23, 2012 April Two Thousand Twelve Note And Warrant Purchase Agreement [Member]	May 31, 2008 May 2008 Series A Financing [Member]	Oct. 31, 2008 Series A Exchange For Series A-1 [Member]	Aug. 31, 2010 August 2010 Series B Financing [Member]	Aug. 05, 2010 August 2010 Series B Financing [Member]	Dec. 31, 2010 December 2010 Series C Financing [Member]	Dec. 31, 2011 December 2010 Series C Financing [Member]	Mar. 31, 2011 March 2011 Series C Financing [Member]	Dec. 31, 2011 March 2011 Series C Financing [Member]	Dec. 31, 2012 March 2011 Series C Financing [Member]	Mar. 31, 2011 Settlement of the Indemnification Claim [Member] Series C Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series A Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series A Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series B Preferred Stock [Member]	Dec. 31, 2011 Payment of dividends [Member] Series B Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series C Preferred Stock [Member]	Dec. 31, 2011 Payment of dividends [Member] Series C Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series D One Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series D Two Preferred Stock [Member]	Dec. 31, 2011 Related Party [Member]	Dec. 31, 2011 Related Party [Member] Series C Preferred Stock [Member]	Dec. 31, 2012 Related Party [Member] November Two Thousand Twelve Note And Warrant Purchase Agreement [Member]	Mar. 31, 2012 Other Holders [Member] Series C Preferred Stock [Member]	Dec. 31, 2012 Other Holders [Member] Series C Preferred Stock [Member]	Apr. 23, 2012 Warrants Issued To Consultants [Member] April Two Thousand Twelve Note And Warrant Purchase Agreement [Member]	Dec. 31, 2012 Finders Fees [Member] November Two Thousand Twelve Note And Warrant Purchase Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Sale of Stock, Number of Shares Issued in Transaction																						1,040,000		1,440,000		2,211,000		800,000			278,000
Stock Exchanged During Period Shares New Issues																							1,040,000
Preferred stock converted into common shares during period, shares								3,232,000																																	36,000			39,000
Common shares issued in connection with the conversion of preferred shares, shares								(140,000)																																	1,624,000			1,729,000
Preferred stock, shares outstanding					953,000	880,000		10,058,000	9,250,000			4,175,000	3,547,000		1,124,000	0	3,302,000	0
Annual dividend percentage					8.00%			10.00%				10.00%			10.00%		10.00%
Preferred stock dividends																																$ 73	$ 67	$ 948	$ 870	$ 389	$ 305	$ 14	$ 41
Preferred Stock, Liquidation Preference Per Share					$ 1.00			$ 1.50				$ 1.50
Conversion price					$ 0.14							$ 0.0225			$ 0.225		$ 0.05				$ 1.00
Stock issued during period, shares, new issues																																36,000		460,000		187,000					195,000
Stock Issued During Period, Value, New Issues		212																													417
Projected number of common shares, subject to converison from preferred stock					6,807,000			232,142,000				185,572,000			49,961,000		66,053,000
Proceeds from sale of stock, net																								1,440		2,211		800
Expenses from the sale of stock			121										121											437
Third party expneses in connection with the sale of stock																								143				71													50
Downward adjustment in the conversion price																									$ 0.0433
Fair value of the derivative liability		225	281							136				179														4		3
Loss resulting from revaluation of conversion features on preferred stock	47
Beneficial Conversion Feature associated with Preferred stock		2,193	1,154												13											179		3,501						268	22	385	198
Value of Preferred Stock					953	880	880	8,188	7,380	7,380		4,754	3,569	3,569	2,158		3,073
Accretion of Beneficial Conversion Feature on Series C Preferred Shares issued in settlement of the indemnification claim												$ 417																			$ 418
Warrants Weighted Average Exercise Price		$ 0.0269	$ 0.0261	$ 0.0274															$ 0.0225	$ 0.0225	$ 0.05																								$ 0.05
Number of common shares callable by warrants																			5,556,000	5,556,000	5,000,000					8,622,000
Number of shares issued by warrants excercise, cashless		20,186,000	5,239,000
Number of shares issued by warrants excercise, for cash		7,439,000
Number of common shares, reserved for issuance upon exercise of outstanding warrants		151,722,000
Number Of Warrants Or Rights Issued		8,643,000	59,735,000																								32,235,000		18,833,000											8,677,000		3,000,000				294,000
Number Of Warrants Or Rights Exercised		(35,162,000)	(12,222,000)								28,678,000																																6,484,000
Class Of Warrant Or Right Number Of Warrants Or Rights Excercised In Cashless Excercise		28,511,000									22,456,000
Class Of Warrant Or Right Number Of Warrants Or Rights Excercised For Cash		6,651,000
Class Of Warrant Or Right Number Of Warrants Or Rights Expired		(4,403,000)	0