Financing (Tables)

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Significant Terms Debentures for Entire Hybrid Instrument [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, 2014:

							Conversion Price – Lower of Fixed Price or Percentage of VWAP for Look-back period
							Anti- Dilution
Debenture	Face		Interest		Fixed		Adjusted					Look-back
Issuance Year	Amount		Rate		Price		Price		%			Period
	(in thousands)
2006	$	1,962	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2007		547	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2007		272	-		$	2.00	$	0.001170		95	%	125 Days
2008		1,187	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2008		830	-		$	2.00	$	0.001170		95	%	125 Days
2009		91	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2011		1,614	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2012		210	-		$	2.00	$	0.001170		95	%	125 Days
2013		22,084	9.5	%	$	2.00	$	0.001235		90	%	125 Days
2013		7,127	-		$	2.00	$	0.001170		95	%	125 Days
Total	$	35,924

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 shares of common stock issued upon conversion.

	Preferred shares	Preferred shares	Preferred shares	Common shares
	issued	converted	remaining	issued
	(in thousands)
Series C Preferred Stock	22	17	5	97,468
Series D Preferred Stock	25	22	3	16,344

Schedule of Debt Conversions [Table Text Block]

The outstanding principal and accrued interest for the debentures as of June 30, 2014 is reflected in the following table in addition to the principal and interest converted since inception and the number of  shares of common stock issued upon conversion.

	Outstanding principal and accrued interest at June 30, 2014		Principal and accrued interest converted since inception		Common Shares issued
	(in thousands)
Debentures	$	38,929	$	11,981	372,828

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

The following table reflects the face value of the instruments 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, 2014 and December 31, 2013.

June 30, 2014
	Face		Carrying		Embedded Conversion		Common Stock
	Value		Value		Feature		Shares
	(in thousands)
Series C Preferred Stock	$	4,597	$	4,597	$	48	3,159,450
Series D Preferred Stock		348		348		3	239,244
Total	$	4,945	$	4,945	$	51	3,921,570

December 31, 2013
	Face		Carrying		Embedded Conversion		Common Stock
	Value		Value		Feature		Shares
	(in thousands)
Series C Preferred Stock	$	4,816	$	4,816	$	276	24,823,015
Series D Preferred Stock		348		348		20	1,794,330
Total	$	5,164	$	5,164	$	296	26,617,345

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

Gain (loss) from change in fair value of derivative liability – Series C and D Preferred Stock and debentures

	Three months ended June 30,				Six months ended June 30,
	2014		2013		2014		2013
			(Restated)				(Restated)
	(in thousands)				(in thousands)
Series C Preferred Stock	$	100	$	76	$	228	$	1,878
Series D Preferred Stock		7		5		16		136
Debentures:
2006		-		(26)		-		(16)
Gain (loss) from change in fair value of derivative liability	$	107	$	55	$	244	$	1,998

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 shares of common stock into which the instruments are convertible as of June 30, 2014 and December 31, 2013.

June 30, 2014					Common
	Face		Fair		Stock
	Value		Value		Shares
	(in thousands)
Debentures:
2006	$	1,962	$	2,011	1,912,226
2007		819		927	878,436
2008		2,017		1912	1,784,300
2009		91		116	110,140
2011		1,614		851	810,547
2012		210		1022	963,159
2013		29,211		28103	26,490,906
Total	$	35,924	$	34,942	32,949,714

December 31, 2013					Common
	Face		Fair		Stock
	Value		Value		Shares
	(in thousands)
Debentures:
2006	$	1,962	$	2,008	819,019
2007		839		533	216,720
2008		2,047		1,905	779,294
2009		134		151	61,563
2011		852		854	348,437
2012		972		1,392	568,305
2013		34,211		31,407	12,826,301
Total	$	41,017	$	38,250	15,619,639

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

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

Gain (loss) from change in fair value of hybrid financial instruments

	Three months ended June 30,				Six  months ended June 30,
	2014		2013		2014		2013
			(Restated)				(Restated)
	(in thousands)				(in thousands)
2006	$	(170)	$	(105)	$	(61)	$	5,609
2007		(71)		(115)		(14)		5,795
2008		(145)		(121)		(58)		7,006
2009		(13)		(18)		(5)		1,352
2010		-		(46)		-		2,654
2011		(94)		(12)		(26)		625
2012		(34)		(16)		(45)		1,013
2013		(101)		-		(964)		-
Gain (loss) from changes in fair value of hybrid instruments	$	(628)	$	(433)	$	(1,173)	$	24,054

Schedule of Warrants Embedded Warrants Fair Value Outstanding and Anti Dilutive Adjustment Disclosure [Table Text Block]

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

		June 30, 2014				December 31, 2013
		Anti- Dilution				Anti- Dilution
		Adjusted				Adjusted
	Expiration	Exercise		Fair		Exercise		Fair
	Year	Price	Warrants	Value		Price	Warrants	Value
								(Restated)
			(in thousands)				(in thousands)
Warrants issued with preferred stock:
Series D Preferred Stock	2017	0.001500	5,825	$	7	0.00010	87,368	$	110
Warrants issued with debentures:
2008	2015	0.001500	15,872		19	0.00010	238,079		294
2010	2015	0.001500	5,423		6	0.00010	81,350		101
2011	2016	0.001500	3,883		5	0.00010	58,246		72
2012	2017	0.001500	2,330		3	0.00010	34,947		43
Total			33,333	$	40		499,990	$	620

Schedule of Changes in Fair Value of Warrants [Table Text Block]

The changes in the fair value of the warrants were as follows:

Gain from change in fair value of derivative liability – warrants

	Three months ended June 30,				Six months ended June 30,
	2014		2013		2014		2013
			(Restated)				(Restated)
	(in thousands)				(in thousands)
Warrants issued with preferred stock:
Series D Convertible Preferred Stock	$	39	$	46	$	104	$	661
Warrants issued with debentures:
2008		70		122		250		1,567
2010		37		43		97		530
2011		24		29		68		422
2012		37		18		61		244
Gain from change in fair value of derivative liability – warrants	$	207	$	258	$	580	$	3,424

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, 2014:

	Compound
	Embedded		Warrant		Hybrid
	Derivatives		Derivatives		Instruments		Total
Beginning balance, December 31, 2013 (restated):	$	296	$	620	$	38,250	$	39,166
Fair value adjustments:
Compound embedded derivatives		(244)		-		-		(244)
Warrant derivatives		-		(580)		-		(580)
Hybrid instruments		-		-		1,173		1,173
Debt Extinguishment						(4,247)		(4,247)
Conversions:
Series D Preferred Stock		(1)		-		-		(1)
August 24, 2006 financing		-		-		(60)		(60)
December 29, 2006 financing		-		-		(48)		(48)
March 27, 2007 financing		-		-		(20)		(20)
October 28, 2008 financing		-		-		(30)		(30)
August 14, 2009 financing		-		-		(44)		(44)
February 8, 2011 financing		-		-		(14)		(14)
March 11, 2011 financing		-		-		(11)		(11)
April 13, 2011 financing		-		-		(3)		(3)
May 31, 2011 financing		-		-		(1)		(1)
June 28, 2011 financing		-		-		(3)		(3)
Ending balance, June 30, 2014	$	51	$	40	$	34,942	$	35,033