Equity (Details Textual 1) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended		12 Months Ended		6 Months Ended		6 Months Ended			2 Months Ended	6 Months Ended							1 Months Ended		12 Months Ended	1 Months Ended				1 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	1 Months Ended					2 Months Ended
	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2012 Series A Preferred Stock [Member]	Dec. 31, 2011 Series A Preferred Stock [Member]	Jun. 30, 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]	Jun. 30, 2012 Series C Preferred Stock [Member]	Dec. 31, 2011 Series C Preferred Stock [Member]	Dec. 31, 2010 Series C Preferred Stock [Member]	Sep. 20, 2011 September Two Thousand Eleven Note And Warrant Purchase Agreement [Member]	Feb. 29, 2012 December 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]	Dec. 31, 2009 Series A-1 Financing [Member]	Aug. 31, 2010 August 2010 Series B Financing [Member]	Dec. 31, 2010 December 2010 Series C Financing [Member]	Mar. 31, 2011 March 2011 Series C Financing [Member]	Jun. 30, 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, 2012 Payment of dividends [Member] Series B Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series C Preferred Stock [Member]	Dec. 31, 2012 Payment of dividends [Member] Series C Preferred Stock [Member]	Aug. 31, 2010 Related Party [Member] Series B Preferred Stock [Member]	Dec. 31, 2011 Related Party [Member] Series C Preferred Stock [Member]	Aug. 31, 2010 Other Holders [Member] Series B Preferred Stock [Member]	Jun. 30, 2012 Other Holders [Member] Series C Preferred Stock [Member]	Dec. 31, 2011 Other Holders [Member] Series C Preferred Stock [Member]	Mar. 31, 2012 Other Holders [Member] Series C Preferred Stock [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										39,000
Stock Exchanged During Period Shares New Issues																				1,040,000
Preferred stock converted into common shares during period, shares								3,232,000													146,000
Common shares issued in connection with the conversion of preferred shares, shares								(140,000)													1,005,000															1,729,000
Preferred stock, shares outstanding						916,000	880,000	9,570,000	9,250,000			3,973,000	3,547,000
Annual dividend percentage						8.00%		10.00%				10.00%
Preferred Stock, Liquidation Preference Per Share						$ 1.00		$ 1.50				$ 1.50
Conversion price						$ 0.14						$ 0.0225
Stock issued during period, shares, new issues																											18,000	36,000	233,000	460,000	98,000	187,000
Stock Issued During Period, Value, New Issues																										$ 417
Projected number of common shares, subject to converison from preferred stock						6,540,000
Proceeds from sale of stock, net																						1,440	2,211	800
Expenses from the sale of stock																						437
Third party expneses in connection with the sale of stock																						143	422	110
Fair value of the derivative liability		225		281						136				179										4	4
Loss resulting from revaluation of conversion features on preferred stock	47
Beneficial Conversion Feature associated with Preferred stock		815	902																				179	3,501					60	149	97	187	1,498	113	502		66
Value of Preferred Stock						916	880	7,699	7,380			4,550	3,569
Accretion of Beneficial Conversion Feature on Series C Preferred Shares issued in settlement of the indemnification claim												418														418
Warrants Weighted Average Exercise Price		$ 0.0266		$ 0.0261	$ 0.0274										$ 0.0225		$ 0.0225	$ 0.05
Number of common shares callable by warrants															5,556,000		5,556,000	5,000,000,000						1,778,000
Projected number of common shares, subject to issuance if the remaining warrants are excercised								221,018				176,578
Number of shares issued by warrants excercise																5,000,000
Number of shares issued by warrants excercise, cashless																4,889,000
Number of shares issued by warrants excercise, for cash																111,000
Proceeds from issuance of common stock, related to warrants exercise											140
Number Of Warrants Or Rights Issued		5,347,000		59,735,000
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											22,456,000
Class Of Warrant Or Right Number Of Warrants Or Rights Expired		(2,938,000)		0
Gain on derivative liability		$ 18