Financing (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule Of Significant Terms Of Debentures Carried At Amortized Cost [Table Text Block]

The following table summarizes the significant terms of each of the debentures for which the entire hybrid instrument is recorded at fair value as of June 30, 2012:

									Conversion Price – Lower of Fixed Price or Percentage of VWAP for Look-back Period
Debenture	Face		Interest Rate Prior to		Interest Rate Subsequent to		Default Interest		Fixed		Anti-Dilution Adjusted				Default		Look-back
Issuance Year	Amount		Modification		Modification		Rate		Price		Price		%		%		Period
	(in thousands)
2006	$	6,080		10%		9.5%		n/a	$	2.00	$	0.00648		90%		n/a	125 Days
2007		7,036		13%-14%		9.5%		n/a	$	2.00		$0.00576-$0.00648		80%-90%		n/a	125 Days
2008		6,468		14%- 15%		9.5%		20%-24%		$1.00-$2.00		$0.00576-$0.00684		80%-95%		50%-75%	125 Days
2009		1,778		14%		9.5%		20%	$	2.00	$	0.006840		95%		50%	125 Days
2010		3,881		14%		9.5%		20%		$0.10- $0.30	$	0.006840		95%		50%	60 Days
2011		2,576		14%		9.5%		20%	$	0.10	$	0.006840		95%		50%	60 Days
2012		2,200		14%		9.5%		20%	$	0.10	$	0.006840		95%		50%	60 Days
Total	$	30,019

Schedule Of Significant Terms Debentures For Entire Hybrid Instrument [Table Text Block]

The table below summarizes the significant terms of the debentures that are carried at their amortized cost and for which the compound embedded derivative is bifurcated and accounted for as a derivative liability as of June 30, 2012:

							Conversion Price – Lower of Fixed Price or Percentage of VWAP for Look-back Period
Debenture Issuance Year	Face Amount		Interest Rate		Default Interest Rate		Fixed Price		Anti-Dilution Adjusted Price		%		Default %	Look-back Period
	(in thousands)
2006	$	304		10.0%		n/a	$	2.00	$	0.00648		90%	n/a	125 days

Schedule Of Number Of Shares Issued Convertible Preferred Stock [Table Text Block]

The following table provides a summary of the preferred stock conversions that have occurred since inception and the number of common shares issued upon conversion.

			Preferred		Preferred		Common
	Preferred shares		shares		shares		shares
	issued		converted		remaining		issued
	(in thousands)
Series C preferred stock		22		17		5		273,382
Series D preferred stock		25		22		3		245,162

Schedule of Debt Conversions [Table Text Block]

The outstanding principal and accrued interest for the debentures as of June 30, 2012 is reflected in the following table in addition to the principal and interest converted since inception and the number of common shares issued upon conversion.

	Outstanding		Principal and
	principal and		accrued interest		Common
	accrued interest at		converted since		shares
	June 30, 2012		inception		issued
	(in thousands)
Debentures	$	44,258	$	5,576		717,367

Schedule Of Allocation Embeded Debt Instument Warrants and Assumption [Table Text Block]

Significant assumptions used to value the hybrid debt instruments and warrants as of inception of the financings are also provided in the table below.

	April 26,			June 1,
	2012			2012
	issuance			issuance
	(in thousands)
Gross proceeds	$	450		$	450
Structuring and due diligence fee: Direct expenses		(25	)		(25	)
	$	425		$	425
Hybrid instrument	$	(878	)	$	(799	)
Derivative warrants		(11	)		(9	)
Day one derivative loss		464			383
	$	(425	)	$	(425	)
Warrant shares issued (in thousands)		1,000			1,000
Initial exercise price of warrants	$	0.1500		$	0.1500
Warrant valuation inputs:
Anti-dilution adjusted exercise price	$	0.0117		$	0.0093
Expected life		5 years			5 years
Estimated volatility		178	%		179	%
Risk free rate of return		0.36	%		0.32	%
Dividend yield		—			—
Hybrid instrument valuation inputs:
Conversion price	$	0.007125		$	0.009300
Equivalent volatility		247	%		178	%
Equivalent interest risk		14.00	%		14.00	%
Equivalent credit risk		7.20	%		7.18	%

Schedule Of Activities Of Compound Embedded Derivative [Table Text Block]

 The following table reflects the face value of the instruments, their amortized carrying value and the fair value of the separately-recognized compound embedded derivative, as well the number of common shares into which the instruments are convertible as of June 30, 2012 and December 31, 2011.

June 30, 2012							Embedded		Common
	Face		Carrying		Accrued		Conversion		Stock
	Value		Value		Interest		Feature		Shares
	(in thousands)
Series C preferred stock	$	4,840	$	4,840	$	-	$	3,124		692,965
Series D preferred stock	$	348	$	348	$	-		203		49,842
Debentures:
2006	$	304	$	304	$	36		82		51,585
Total	$	304	$	304	$	36	$	3,409		794,392

December 31, 2011							Embedded		Common
	Face		Carrying		Accrued		Conversion		Stock
	Value		Value		Interest		Feature		Shares
	(in thousands)
Series C preferred stock	$	5,086	$	5,086	$	-	$	554		499,084
Series D preferred stock	$	1,395	$	1,395	$	-		152		136,899
Debentures:
2006	$	7,061	$	7,061	$	3,550		1,554		1,128,515
2008		4,788		4,788		2,226		932		712,474
2009		1,983		1,965		736		370		278,427
2010		3,881		1,426		770		2,692		470,718
2011		4,725		1,077		376		2,917		436,730
Total	$	22,438	$	16,317	$	7,658	$	9,171		3,662,847

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The changes in fair value of these derivative financial instruments were as follows:

	Three months ended June 30,						Six months ended June 30,
	2012			2011			2012			2011
	(in thousands)						(in thousands)
Series C preferred stock	$	11,915		$	(10,285	)	$	(3,202	)	$	(7,845	)
Series D preferred stock		1,946			(2,813	)		(1,346	)		(2,261	)
Debentures:
2006		18,815			(8,901	)		(3,070	)		(7,013	)
2008		13,391			(5,503	)		(1,350	)		(4,265	)
2009		4,964			(2,260	)		(486	)		(1,871	)
2010		11,901			(4,702	)		(34	)		(4,067	)
2011		8,896			(3,072	)		(4,825	)		(2,767	)
2012		3,523			-			15			-
		75,351			(37,536	)		(14,298	)		(30,089	)
Less: Day-one loss from debenture financings		(847	)		(405	)		(847	)		(1,181	)
Gain (loss) from change in fair value of derivative liability	$	74,504		$	(37,941	)	$	(15,145	)	$	(31,270	)

Schedule Of Hybrid Financial Instrument Disclosure [Table Text Block]

The following table reflects the face value of the financial instruments, the fair value of the hybrid financial instrument and the number of common shares into which the instruments are convertible as of June 30, 2012 and December 31, 2011.

June 30, 2012					Common
	Face		Fair		Stock
	Value		Value		Shares
			(in thousands)
Debentures:
2006	$	6,134	$	13,457		1,531,358
2007		7,036		15,547		1,748,554
2008		6,468		14,142		1,586,202
2009		1,778		3,625		391,651
2010		3,881		7,312		735,667
2011		2,576		4,731		464,141
2012		2,200		3,771		3,771
Total	$	30,073	$	62,585		6,461,344

December 31, 2011					Common
	Face		Fair		Stock
	Value		Value		Shares
			(in thousands)
Debentures:
2007	$	7,682	$	13,115		836,428
2008		1,680		3,343		200,001
Total	$	9,362	$	16,458		1,036,429

Schedule Of Fair Value Hybrid Financial Instrument Disclosure [Table Text Block]

Changes in the fair value of convertible instruments that are carried in their entirety at fair value are reported as “Gain (loss) from change in fair value of hybrid financial instruments” in the accompanying consolidated statements of operations. The changes in fair value of these hybrid financial instruments were as follows:

	Three months ended June 30,						Six months ended June 30,
	2012			2011			2012			2011
	(in thousands)						(in thousands)
2006	$	1,734		$	-		$	1,734		$	-
2007		24,068			(12,052	)		(989	)		(10,032	)
2008		9,663			(3,847	)		3,550			(3,396	)
2009		433			-			433			-
2010		896			-			896			-
2011		512			-			512			-
2012		314			-			314			-
		37,620			(15,899	)		6,450			(13,428	)
Less: Day-one loss from debenture financings		(847	)					(847	)
Gain (loss) from changes in fair value of hybrid instruments	$	36,773		$	(15,899	)	$	5,603		$	(13,428	)

Schedule Of Warrants Embedded Warrants Fair Value Outsanding and Anti Diluative Adjustment Disclosure [Table Text Block]

The following table summarizes the warrants outstanding, their fair value and their exercise price after adjustment for anti-dilution provisions:

			June 30, 2012						December 31, 2011
			Anti-Dilution						Anti-Dilution
			Adjusted						Adjusted
	Expiration		Exercise				Fair		Exercise				Fair
	Year		Price		Warrants		Value		Price		Warrants		Value
					(in thousands)						(in thousands)
Warrants issued with preferred stock:
Series D preferred stock		2017		0.007125		315,789	$	2,587		0.00998		225,564	$	2,535
Warrants issued with debentures:
2007		2012		0.007125		210,526		492		0.00998		401,002		1,510
2008		2015		0.007125		860,526		6,325		0.00998		614,662		6,876
2010		2015		0.007125		294,035		2,152		0.00998		210,025		2,335
2011		2016		0.007125		210,526		1,684		0.00998		150,376		1,686
2012		2017		0.007125		63,158		519		n/a		—		—
Total						1,954,560	$	13,759				1,601,629	$	14,942

Schedule Of Changes In Fair Value Of Warrants [Table Text Block]

Changes in the fair value of the warrants are reported as "(Gain) loss from change in fair value of derivative liability - warrants" in the accompanying consolidated statement of operations. The changes in the fair value of the warrants were as follows:

	Three months ended June 30,					Six months ended June 30,
	2012		2011			2012			2011
Warrants issued with preferred stock:	(in thousands)					(in thousands)
Series C preferred stock	$	-	$	-		$	-		$	53
Series D preferred stock		6,819		(11	)		(52	)		178
Warrants issued with debentures:
2006		-		(13	)		-			127
2007		4,356		(14	)		1,019			129
2008		19,093		(25	)		550			383
2010		6,525		(43	)		183			668
2011		4,578		19			1			157
2012		1,038		-			(780	)		-
Total	$	42,409	$	(87	)		921		$	1,695

Schedule Of Reconciliation Changes In Fair Value Of Financial Instruments and Hybrid Instruments Carried At Fair Value [Table Text Block]

The following represents a reconciliation of the changes in fair value of financial instruments measured at fair value using Level 3 inputs and changes in the fair value of hybrid instruments carried at fair value during the six months ended June 30, 2012:

	Compound
	Embedded			Warrant			Hybrid
	Derivatives			Derivatives			Instruments			Total
Beginning balance, December 31, 2011:	$	9,171		$	14,942		$	16,458		$	40,571
Issuances:
January 11, 2012		289			13			-			302
February 6, 2012		176			9			-			185
March 26, 2012		287			42			-			329
April 26, 2012		-			11			878			889
June 1, 2012		-			9			799			808
Fair value adjustments:
Compound embedded derivatives		14,298			-			-			14,298
Warrant derivatives		-			(921	)		-			(921	)
Hybrid instruments		-			-			(5,603	)		(5,603	)
Change to fair value option related to		(29,656	)		-			29,656			-
compound embedded derivative
Change to fair value option related to
debenture carrying value		-			-			26,809			26,809
Day-one loss from derivative financings		-			-			(847	)		(847	)
Extinguished		17,787						9,692			27,479
Conversions:
Series C preferred stock		(632	)		-			-			(632	)
Series D preferred stock		(1,295	)		-			-			(1,295	)
August 24, 2006 financing		(740	)		-			-			(740	)
December 29, 2006 financing		(176	)		-			-			(176	)
March 27, 2007 financing		-			-			(740	)		(740	)
August 24, 2007 financing		-			-			(585	)		(585	)
May 1, 2009 financing		(21	)		-			-			(21	)
April 13, 2011 financing		(226	)		-			-			(226	)
May 31, 2011 financing		(885	)		-			-			(885	)
June 28, 2011  financing		(414	)		-			-			(414	)
July 13, 2011 financing		(1,656	)		-			-			(1,656	)
August 15, 2011 financing		(1,440	)		-			-			(1,440	)
September 15, 2011 financing		(1,458	)		-			-			(1,458	)
Ending balance, June 30, 2012	$	3,409		$	14,105		$	76,517		$	94,031