Financing (Tables)

12 Months Ended

Dec. 31, 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 December 31, 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	$	0.000090	90	%	125 Days
2007		542	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2007		272	-		$	2.00	$	0.000095	95	%	125 Days
2008		1,095	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2008		830	-		$	2.00	$	0.000095	95	%	125 Days
2009		7	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2011		785	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2012		762	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2012		210	-		$	2.00	$	0.000095	95	%	125 Days
2013		22,084	9.5	%	$	2.00	$	0.000090	90	%	125 Days
2013		7,127	-		$	2.00	$	0.000095	95	%	125 Days
2014		170	9.5	%	$	2.00	$	0.000090	90	%	125 Days
Total	$	35,845

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 shares	Preferred shares	Preferred shares	Common shares
	issued	converted	remaining	issued
	(in thousands)
Series C Preferred Stock	22	18	4	1,109,780
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 December 31, 2014 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 accrued interest at December 31, 2014		Principal and accrued interest converted since inception		Common Shares issued
	(in thousands)
Debentures	$	39,766	$	12,529	2,228,803

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 December 31, 2014 and 2013.

December 31, 2014
					Embedded		Common
	Face		Carrying		Conversion		Stock
	Value		Value		Feature		Shares
	(in thousands)
Series C Preferred Stock	$	4,332	$	4,332	$	5	44,659,794
Series D Preferred Stock		348		348		0	3,588,660
Total	$	4,680	$	4,680	$	5	48,248,454

December 31, 2013 (Restated)							Embedded		Common
	Face		Carrying		Accrued		Conversion		Stock
	Value		Value		Interest		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

	Year ended
	December 31,
			2013
	2014		(Restated)
	(in thousands)
Series C Preferred Stock	$	270	$	1,712
Series D Preferred Stock		19		123
Debentures:
2006		-		6
2008		-		-
2009		-		-
2010		-		-
2011		-		-
2012		-		-
Gain/(loss) from change in fair value of derivative liability	$	289	$	1,841

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 December 31, 2014 and 2013.

December 31, 2014					Common
	Face		Fair		Stock
	Value		Value		Shares
	(in thousands)
Debentures:
2006	$	1,962	$	2,019	23,871,436
2007		814		1,000	11,549,397
2008		1,925		1,949	22,598,665
2009		7		46	517,119
2011		785		800	9,469,332
2012		972		1,111	12,926,448
2013		29,212		30,298	354,041,487
2014		170		162	1,930,434
Total	$	35,845	$	37,384	436,904,318

December 31, 2013 (Restated)					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
2010		852		854	348,437
2011		972		1,392	568,305
2012		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]

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

	Year ended December 31,
			2013
	2014		(Restated)
	(in thousands)
2006	$	(255)	$	11,604
2007		(82)		16,381
2008		(220)		13,291
2009		(6)		2,113
2010		-		7,177
2011		(93)		1,748
2012		(126)		1,321
2013		(3,412)		(31,826)
2014		(8)		-
		(4,173)		21,809
Less: Day-one loss from debenture financings		-		-
Gain (loss) from changes in fair value of hybrid instruments	$	(4,173)	$	21,809

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:

						December 31, 2013
		December 31, 2014				(Restated)
		Anti-				Anti-
		Dilution				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	0.000100	5,825	$	0	.000100	87,368	$	110
Warrants issued with debentures:
2008	2015	0.000100	15,872		1	0.000100	238,079		294
2010	2015	0.000100	5,423		1	0.000100	81,350		101
2011	2016	0.000100	3,884		0	0.000100	58,246		72
2012	2017	0.000100	2,330		0	0.000100	34,947		43
Total			33,333	$	2		499,990	$	620

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

Gain from change in fair value of derivative liability – warrants

	Year ended December 31,
	2014		2013  (Restated)
	(in thousands)
Warrants issued with preferred stock:
Series D Preferred Stock	$	12	$	58
Warrants issued with debentures:
2007		-		-
2008		276		1,370
2010		212		1,051
2011		75		374
2012		43		214
Total	$	618	$	3,067

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 year ended December 31, 2014 (in thousands):

	Compound
	Embedded		Warrant		Hybrid
	Derivatives		Derivatives		Instruments		Total
Beginning balance, December 31, 2013:	$	296	$	620	$	38,250	$	39,166
Fair value adjustments:
Compound embedded derivatives		(289)		-		-		(289)
Warrant derivatives		-		(618)		-		(618)
Hybrid instruments		-		-		4,173		4,173
Debt Extinguishment						(4,247)		(4,247)
Conversions:
Series C Preferred Stock		(1)		-		-		(1)
August 24, 2006 financing		-		-		(213)		(213)
December 29, 2006 financing		-		-		(61)		(61)
March 27, 2007 financing		-		-		(97)		(97)
October 28, 2008 financing		-		-		(155)		(155)
August 14, 2009 financing		-		-		(140)		(140)
February 8, 2011 financing		-		-		(35)		(35)
March 11, 2011 financing						(11)		(11)
April 13, 2011 financing		-		-		(3)		(3)
May 31, 2011 financing		-		-		(1)		(1)
June 28, 2011 financing						(3)		(3)
December 8, 2011 financing		-		-		(31)		(31)
July 1, 2013 financing						(40)		(40)
Sep 15, 2014 financing		-		-		(1)		(1)
Ending balance, December 31, 2014	$	6	$	2	$	37,384	$	37,392