Kior (KIOR) 10-Q 12 May 14 2014 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2014	5-May-14	5-May-14
		Common Class A [Member]	Common Class B [Member]
Document Information [Line Items]	'	'	'
Entity Registrant Name	'Kior Inc	'	'
Document Type	'10-Q	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Common Stock, Shares Outstanding	'	63,769,983	47,160,325
Amendment Flag	'false	'	'
Entity Central Index Key	'0001418862	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Document Period End Date	31-Mar-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q1	'	'

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$4,226	$25,117
Restricted cash	200	200
Inventories	3,069	3,526
Prepaid expenses and other current assets	2,573	1,689
Total current assets	10,068	30,532
Property, plant and equipment, net	51,554	52,300
Intangible assets, net	2,072	2,124
Other assets	644	1,094
Total assets	64,338	86,050
Current liabilities:	'	'
Current portion of long-term debt	3,750	3,750
Accounts payable	3,937	4,125
Other accrued liabilities	8,531	8,533
Total current liabilities	16,218	16,408
Related party long-term debt with Alberta Lenders/Khosla, net of discount of $15,455 and $15,177 at March 31, 2014 and December 31, 2013, respectively	189,384	184,967
Long-term debt, less current portion, net of discount of $25,800 and $26,394 at March 31, 2014 and December 31, 2013, respectively	39,825	39,231
Other liabilities	9	37
Total liabilities	245,436	240,643
Commitments and contingencies (Note 9)	'	'
Preferred stock - $0.0001 par value; 2,000,000 shares authorized at March 31, 2014 and December 31, 2013; none issued and outstanding	0	'
Additional paid-in capital	423,750	419,661
Deficit accumulated during the development stage	-604,859	-574,265
Total stockholders' deficit	-181,098	-154,593
Total liabilities, convertible preferred stock and stockholders' equity	64,338	86,050
Common Class A [Member]	'	'
Current liabilities:	'	'
Common Stock	6	6
Common Class B [Member]	'	'
Current liabilities:	'	'
Common Stock	$5	$5

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Discount (in Dollars)	$41,255	$41,571
Preferred stock par value (in Dollars per share)	$0.00	$0.00
Preferred stock shares authorized	2,000,000	2,000,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Alberta Lenders/Khosla Term Loan [Member]	'	'
Discount (in Dollars)	15,455	15,177
Common Class A [Member]	'	'
Common Stock, par value (in Dollars per share)	$0.00	$0.00
Common Stock, authorized	250,000,000	250,000,000
Common Stock, issued	59,874,509	59,189,250
Common Stock, outstanding	59,874,509	59,189,250
Common Class B [Member]	'	'
Common Stock, par value (in Dollars per share)	$0.00	$0.00
Common Stock, authorized	70,800,000	70,800,000
Common Stock, issued	51,013,901	51,009,901
Common Stock, outstanding	51,013,901	51,009,901
Long-term Debt [Member]	'	'
Discount (in Dollars)	$25,800	$26,394

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (USD $)	3 Months Ended		80 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Revenues:	'	'	'
Product revenue	$102,000	$68,000	$1,663,000
Renewable identification number revenue	'	3,000	351,000
Total revenues	102,000	71,000	2,014,000
Operating expenses:	'	'	'
Cost of product revenue	9,434,000	5,408,000	66,659,000
Research and development expenses	6,741,000	9,166,000	148,022,000
General and administrative expenses	7,416,000	14,676,000	140,082,000
Loss on Impairment	'	'	196,269,000
Total operating expenses	23,591,000	29,250,000	551,032,000
Loss from operations	-23,489,000	-29,179,000	-549,018,000
Other income (expense), net:	'	'	'
Interest income	'	1,000	193,000
Beneficial conversion feature expense related to convertible promissory note	'	'	-10,000,000
Interest expense, net of amounts capitalized	-7,105,000	-2,157,000	-36,273,000
Foreign currency loss	'	'	-435,000
Loss from change in fair value of warrant liability	'	'	-9,279,000
Other expense, net	-7,105,000	-2,156,000	-55,794,000
Loss before income taxes	-30,594,000	-31,335,000	-604,812,000
Income tax expense:	'	'	'
Income tax expenses - current	'	'	-47,000
Net loss	-30,594,000	-31,335,000	-604,859,000
Weighted-average Class A and B common shares outstanding, basic and diluted (in Shares)	110,378	105,572	'
Comprehensive loss	($30,594,000)	($31,335,000)	($604,859,000)
Common Class A [Member]	'	'	'
Income tax expense:	'	'	'
Net loss per share of Class (in Dollars per share)	($0.28)	($0.30)	'
Weighted-average Class A and B common shares outstanding, basic and diluted (in Shares)	59,365,000	52,716,000	'
Common Class B [Member]	'	'	'
Income tax expense:	'	'	'
Net loss per share of Class (in Dollars per share)	($0.28)	($0.30)	'
Weighted-average Class A and B common shares outstanding, basic and diluted (in Shares)	51,013,000	52,856,000	'

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) (USD $)

Convertible Preferred Stock [Member]

Convertible Preferred Stock [Member]

Convertible Preferred Stock [Member]

Convertible Preferred Stock [Member]

Convertible Preferred Stock [Member]

Common Class A [Member]

Common Class A [Member]

Common Class A [Member]

Common Class B [Member]

Common Class B [Member]

Common Class B [Member]

Additional Paid-in Capital [Member]

Additional Paid-in Capital [Member]

Additional Paid-in Capital [Member]

Additional Paid-in Capital [Member]

Additional Paid-in Capital [Member]

Accumulated Deficit during Development Stage [Member]

Accumulated Other Comprehensive Income (Loss) [Member]

Series A Covertible Preferred Stock [Member]

Series A-1 Convertible Preferred Stock [Member]

Series B Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Total

In Thousands

Series A Covertible Preferred Stock [Member]

Series A-1 Convertible Preferred Stock [Member]

Series B Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series B Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series A Covertible Preferred Stock [Member]

Series A-1 Convertible Preferred Stock [Member]

Series A Covertible Preferred Stock [Member]

Series A-1 Convertible Preferred Stock [Member]

Series B Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Balance at Dec. 31, 2006

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock

$2,599

'

'

'

'

'

'

'

'

'

$1

'

'

'

'

$2,598

'

'

'

'

'

'

$2,599

Issuance of convertible preferred stock (in Shares)

14,400

'

'

'

'

'

'

'

'

'

14,400

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-472

'

'

'

'

'

-472

Receivable from Series A convertible preferred stockholder

'

'

'

'

-1,155

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Dec. 31, 2007

'

'

'

'

1,444

'

'

'

'

'

1

'

'

'

'

2,598

-472

'

'

'

'

'

2,127

Balance (in Shares) at Dec. 31, 2007

'

'

'

'

14,400

'

'

'

'

'

14,400

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock

1,761

10,024

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock (in Shares)

9,600

20,572

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-5,866

'

'

'

'

'

-5,866

Other comprehensive income

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

93

'

'

'

'

93

Receivable from Series A convertible preferred stockholder

'

'

'

'

1,155

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Dec. 31, 2008

'

'

'

'

14,384

'

'

'

'

'

1

'

'

'

'

2,598

-6,338

93

'

'

'

'

-3,646

Balance (in Shares) at Dec. 31, 2008

'

'

'

'

44,572

'

'

'

'

'

14,400

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

331

'

'

'

'

'

'

331

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-14,059

'

'

'

'

'

-14,059

Other comprehensive income

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

122

'

'

'

'

122

Balance at Dec. 31, 2009

'

'

'

'

14,384

'

'

'

'

'

1

'

'

'

'

2,929

-20,397

215

'

'

'

'

-17,252

Balance (in Shares) at Dec. 31, 2009

'

'

'

'

44,572

'

'

'

'

'

14,400

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock

'

'

120,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock (in Shares)

'

'

24,480

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of warrants on common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

298

'

'

'

'

'

'

298

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

730

'

'

'

'

'

'

730

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

43

'

'

'

'

'

'

43

Stock options exercised (in Shares)

'

'

'

'

'

'

'

'

'

'

524

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation- Common and Class A common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200

'

'

'

'

'

'

200

Stock-based compensation- Common and Class A common stock (in Shares)

'

'

'

'

'

'

'

60

'

'

896

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-45,927

'

'

'

'

'

-45,927

Other comprehensive income

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-215

'

'

'

'

-215

Balance at Dec. 31, 2010

'

'

'

'

134,384

'

'

'

'

'

2

'

'

'

'

4,199

-66,324

'

'

'

'

'

-62,123

Balance (in Shares) at Dec. 31, 2010

'

'

'

'

69,052

'

'

60

'

'

15,820

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock

'

'

'

55,000

'

'

'

1

'

'

'

'

'

'

'

148,643

'

'

'

'

'

'

148,644

Issuance of convertible preferred stock (in Shares)

'

'

'

11,220

'

'

'

10,800

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion of convertible preferred stock

-4,360

-10,024

-120,000

-55,000

'

2

1

'

2

2

'

4,358

10,022

119,998

54,999

'

'

'

4,360

10,024

120,000

55,000

'

Conversion of convertible preferred stock (in Shares)

-24,000

-20,572

-24,480

-11,220

'

24,480

4,583

'

24,000

20,572

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion of Convertible Preferred Stock Warrants Liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,399

'

'

'

'

'

'

10,399

Beneficial Conversion Feature on Issuance of Series C Convertible Preferred Stock and Stock Warrants

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

19,669

'

'

'

'

'

'

19,669

Deemed Dividend Related to the Beneficial Conversion Feature on Series C Convertible Preferred Stock and Stock Warrants

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-19,669

'

'

'

'

'

'

-19,669

Common Stock Issued - Restricted (in Shares)

'

'

'

'

'

'

'

70

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,607

'

'

'

'

'

'

3,607

Stock Based Compensation - Restricted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,547

'

'

'

'

'

'

2,547

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

336

'

'

'

'

'

'

336

Stock options exercised (in Shares)

'

'

'

'

'

'

'

330

'

'

1,526

'

'

'

'

'

'

'

'

'

'

'

'

Exercised options converted from class B to class A (in Shares)

'

'

'

'

'

'

'

492

'

'

-492

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-64,055

'

'

'

'

'

-64,055

Balance at Dec. 31, 2011

'

'

'

'

'

'

'

4

'

'

6

'

'

'

'

359,108

-130,379

'

'

'

'

'

228,739

Balance (in Shares) at Dec. 31, 2011

'

'

'

'

'

'

'

40,815

'

'

61,426

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of warrants on common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,354

'

'

'

'

'

'

11,354

Common Stock Issued - Restricted (in Shares)

'

'

'

'

'

'

'

252

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Bonus Grant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

420

'

'

'

'

'

'

420

Equity Bonus Grant (in Shares)

'

'

'

'

'

'

'

45

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,285

'

'

'

'

'

'

4,285

Stock Based Compensation - Restricted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,068

'

'

'

'

'

'

9,068

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,577

'

'

'

'

'

'

1,577

Stock options exercised (in Shares)

'

'

'

'

'

'

'

796

'

'

2,050

'

'

'

'

'

'

'

'

'

'

'

'

Shares converted from class B to class A (in Shares)

'

'

'

'

'

'

'

9,966

'

'

-9,966

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-96,435

'

'

'

'

'

-96,435

Balance at Dec. 31, 2012

'

'

'

'

'

'

'

4

'

'

6

'

'

'

'

385,812

-226,814

'

'

'

'

'

159,008

Balance (in Shares) at Dec. 31, 2012

'

'

'

'

'

'

'

51,874

'

'

53,510

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of convertible preferred stock

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

7,499

'

'

'

'

'

'

7,500

Issuance of convertible preferred stock (in Shares)

'

'

'

'

'

'

'

3,236

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of warrants on common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13,653

'

'

'

'

'

'

13,653

Common Stock Issued - Restricted (in Shares)

'

'

'

'

'

'

'

1,037

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,647

'

'

'

'

'

'

3,647

Stock Based Compensation - Restricted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,423

'

'

'

'

'

'

8,423

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

627

'

'

'

'

'

'

627

Stock options exercised (in Shares)

'

'

'

'

'

'

'

263

'

'

279

'

'

'

'

'

'

'

'

'

'

'

'

Shares converted from class B to class A (in Shares)

'

'

'

'

'

'

'

2,779

'

'

-2,779

'

'

'

'

'

'

'

'

'

'

'

'

Shares converted from class B to class A

'

'

'

'

'

'

'

1

'

'

-1

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-347,451

'

'

'

'

'

-347,451

Balance at Dec. 31, 2013

'

'

'

'

'

'

'

6

'

'

5

'

'

'

'

419,661

-574,265

'

'

'

'

'

-154,593

Balance (in Shares) at Dec. 31, 2013

'

'

'

'

'

'

'

59,189

'

'

51,010

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of warrants on common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,925

'

'

'

'

'

'

1,925

Common Stock Issued - Restricted (in Shares)

'

'

'

'

'

'

'

514

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation - options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

447

'

'

'

'

'

'

447

Stock Based Compensation - Restricted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,702

'

'

'

'

'

'

1,702

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15

'

'

'

'

'

'

15

Stock options exercised (in Shares)

'

'

'

'

'

'

'

'

'

'

175

'

'

'

'

'

'

'

'

'

'

'

'

Shares converted from class B to class A (in Shares)

'

'

'

'

'

'

'

171

'

'

-171

'

'

'

'

'

'

'

'

'

'

'

'

Net loss

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-30,594

'

'

'

'

'

-30,594

Balance at Mar. 31, 2014

'

'

'

'

'

'

'

$6

'

'

$5

'

'

'

'

$423,750

($604,859)

'

'

'

'

'

($181,098)

Balance (in Shares) at Mar. 31, 2014

'

'

'

'

'

'

'

59,874

'

'

51,014

'

'

'

'

'

'

'

'

'

'

'

'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended		80 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Cash flows from operating activities	'	'	'
Net loss	($30,594)	($31,335)	($604,859)
Adjustments to reconcile net loss to cash used in operating activities:	'	'	'
Depreciation and amortization	824	1,593	19,605
Stock-based compensation	2,149	3,726	34,987
Non cash compensation from warrants issued on common stock	'	'	298
Beneficial conversion feature	'	'	10,000
Derivative fair value adjustments	'	'	9,279
Loss on impairment	'	'	196,269
Accrued interest	4,028	1,198	19,368
Amortization of debt discount	3,073	948	15,259
Non cash equity bonus	'	'	133
Amortization of prepaid insurance	670	591	4,739
Changes in operating assets and liabilities	'	'	'
Inventories	457	383	-3,069
Prepaid expenses and other current assets	-1,216	-975	-5,892
Accounts payable	-171	-937	1,576
Accrued liabilities	-951	-708	5,216
Net cash used in operating activities	-21,731	-25,516	-297,091
Cash flows from investing activities	'	'	'
Purchases of property, plant and equipment	-43	-4,781	-270,973
Purchases of intangible assets	'	'	-727
Restricted cash	'	'	-200
Net cash used in investing activities	-43	-4,781	-271,900
Cash flows from financing activities	'	'	'
Proceeds from issuance of convertible promissory note to stockholder	'	'	15,000
Proceeds from equipment loans	'	'	6,000
Proceeds from stock option exercises / warrants	15	48	2,528
Proceeds from issuance of common stock in initial public offering, net of offering costs	'	'	148,644
Borrowings under the Mississippi Development Authority loan	'	'	75,000
Borrowings under the Alberta Lenders/Khosla term loan	'	'	75,000
Debt issuance costs	'	'	-1,624
Financing of insurance premium	1,155	910	2,801
Payments on Financed Insurance Premium	-287	'	-1,916
Proceeds from Khosla Revolver	'	'	50,000
Proceeds from Sr. Convertible Note	'	'	42,500
Proceeds from Gates Stock Purchase Agreement	'	'	7,500
Net cash provided by financing activities	883	521	573,299
Effect of exchange rate on cash and cash equivalents	'	'	-82
Net increase (decrease) in cash and cash equivalents	-20,891	-29,776	4,226
Proceeds from business loans	'	'	7,000
Payments on business loans	'	'	-7,478
Cash and cash equivalents	'	'	'
Beginning of period	25,117	40,887	0
End of period	4,226	11,111	4,226
Series A Covertible Preferred Stock [Member]	'	'	'
Cash flows from financing activities	'	'	'
Proceeds from issuance of convertible preferred stock	'	'	4,360
Series A-1 Convertible Preferred Stock [Member]	'	'	'
Cash flows from financing activities	'	'	'
Proceeds from issuance of convertible preferred stock	'	'	10,024
Series B Convertible Preferred Stock [Member]	'	'	'
Cash flows from financing activities	'	'	'
Proceeds from issuance of convertible preferred stock	'	'	95,000
Series C Convertible Preferred Stock [Member]	'	'	'
Cash flows from financing activities	'	'	'
Proceeds from issuance of convertible preferred stock	'	'	55,000
Equipment Loans [Member]	'	'	'
Cash flows from financing activities	'	'	'
Repayments of long-term debt	'	-437	-6,415
Mississippi Development Authority Loan [Member]	'	'	'
Cash flows from financing activities	'	'	'
Repayments of long-term debt	'	'	($5,625)

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (continued) (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Noncash investing and financing activities	'	'
Change in accrued purchase of property, plant and equipment	$0	$0
Debt discount amortization	'	1,586
Capitalization of paid-in-kind interest	'	2,349
Issuance of warrants in connection with Alberta Lenders/Khosla term loan	1,925	5,047
Paid-in-Kind Interest	3,974	'
Accrued fees payable	'	$100

Note_1_Organization_and_Operat

Note 1 - Organization and Operations of the Company	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block [Abstract]	'
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	'
	1	Organization and Operations of the Company
	Organization
	KiOR, Inc., a Delaware corporation (the “Company”), is a next-generation renewable fuels company based in Houston, Texas. The Company was incorporated and commenced operations in July 2007 as a joint venture between Khosla Ventures, LLC (“Khosla Ventures”), an investment partnership, and BIOeCON B.V.
	The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiary KiOR Columbus, LLC (“KiOR Columbus”), which was formed on October 6, 2010.
	Nature of Business
	The Company has developed a proprietary catalytic process that allows it to produce cellulosic gasoline and diesel from abundant, lignocellulosic biomass. The Company’s cellulosic gasoline and diesel are true hydrocarbon fuels which are similar to their traditional petroleum-based counterparts, and yet the Company estimates they will result in over 60% less life cycle greenhouse gas emissions.
	In 2012, the Company completed construction of its first, initial-scale commercial production facility in Columbus, Mississippi (the “Columbus facility”). This facility is designed to produce up to 13 million gallons of cellulosic diesel and gasoline per year. During the fourth quarter of 2012, the Company commissioned its proprietary Biomass Fluid Catalytic Cracking, or BFCC, operation at the Columbus facility, and produced its first “on specification” cellulosic intermediate oil in limited quantities. During the first quarter of 2013, the Company commissioned the Columbus facility’s hydrotreater and fractionation units, and made the Company’s first cellulosic diesel and gasoline shipments in March 2013 and June 2013, respectively. During 2013, the Company gradually increased continuous production at its Columbus facility but did not reach “steady state” production.
	The Company has encountered several significant difficulties to date at its Columbus facility because of structural bottlenecks, reliability and mechanical issues, and catalyst performance.
	In January 2014, the Company elected to suspend operations at its Columbus facility in order to attempt to complete a series of optimization projects and upgrades that are targeted at improving throughput, yield and overall process efficiency and reliability. In terms of throughput, the Company experienced issues with structural design bottlenecks and reliability that have limited the amount of wood that it can introduce to its BFCC system. These issues have caused the Columbus facility to run significantly below its nameplate capacity for biomass of 500 bone dry tons per day and limited the Company’s ability to produce cellulosic gasoline and diesel. The Company has identified changes to the BFCC, hydrotreater and wood yard that it believes would improve the throughput performance of the Columbus facility. In terms of yield, the Company has identified additional enhancements that it believes would improve the overall yield of transportation fuels from each ton of biomass from the Columbus facility, which has been lower than expected due to a delay in introducing its new generation of catalyst to the facility and mechanical failures impeding desired chemical reactions in the BFCC reactor. In terms of overall process efficiency and reliability, the Company has previously generated products with an unfavorable mix that includes higher percentages of fuel oil and off specification product. Products with higher percentages of fuel oil result in lower product and RIN (as defined below) revenue and higher overall costs. The Company has identified changes that it believes would improve its processes and increase reliability and on-stream percentage throughout its Columbus facility. The Company also believes it can reduce operating costs by, among other things, decreasing natural gas consumption by the facility. The implementation of any such optimization projects is subject to the Company’s ability to raise additional working capital.
	While the Company has completed some of these projects and upgrades, it has elected to suspend all optimization work and bring the Columbus facility to a safe, idle state, which the Company believes will enable it to restart the facility upon the achievement of additional research and development milestones and if it is able to raise addiitonal working capital.
	Development Stage Enterprise
	Since inception, the Company has generated significant losses. As of March 31, 2014, the Company had an accumulated deficit of $604.9 million, and it expects to continue to incur operating losses until it has constructed its first standard commercial production facility and it is operational. The Company expects to incur additional costs and expenses related to research and development, optimization projects and upgrades at its Columbus facility, and other overhead and operating costs. The Company expects to have little to no revenue in 2014, unless and until it restarts the Columbus facility. The Company will need to raise additional funds to continue its operations, restart its Columbus facility, build its next commercial production facility and subsequent facilities, continue the development of its technology and products, commercialize any products resulting from its research and development efforts, and satisfy its debt service obligations.
	Going Concern and Liquidity
	The Company must raise capital in one or more external equity and/or debt financings to fund the cash requirements of its ongoing operations for the next twelve months from March 31, 2014. In addition, it must raise substantial additional capital to fund its next commercial production facility. On March 31, 2014, the Company entered into a Senior Secured Promissory Note and Warrant Purchase Agreement (the “2014 Note Purchase Agreement”) with KFT Trust, Vinod Khosla, Trustee, (“Khosla”) and Khosla in its capacity as agent for Khosla. The 2014 Note Purchase Agreement contemplates multiple tranches of financing of up to $25 million. However, even with this new source of financing, the lack of any additional committed near term sources of financing raises substantial doubt about the Company’s ability to continue as a going concern. Commercialization of the Company’s technology will also require significant capital and other expenditures, including costs related to: (i) ongoing efforts to achieve steady-state operations, (ii) a series of optimization projects and upgrades at its Columbus facility and (iii) the construction of its next commercial production facility, all of which will also require it to raise significant amounts of additional capital.
	As discussed in Note 7 – Long-Term Debt, the first tranche of the 2014 Note Purchase Agreement resulted in borrowings of $5 million. Additional borrowings under the 2014 Notes Purchase Agreement are subject to the achievement of performance milestones. The performance milestones require (i) the Company to demonstrate that it has made material progress in implementing its business, financial, operational and technology plans, (ii) the Company to demonstrate that there is a likelihood of eventual commercial success of the Company’s business plan when considered in light of both internal and external factors, including without limitation, market conditions, costs, competitive developments and an ability to secure financing for the Company and (iii) Khosla to believe that the purchase of additional notes is appropriate for the Company to continue its operations.
	As of March 31, 2014, the Company has suspended all optimization projects in order to bring the Columbus facility to a safe, idle state and has not demonstrated any additional research and development progress or any demonstrable progress towards achieving its financing performance milestones. The Company does not believe it can restart the Columbus facility on an economically viable basis at this time and therefore cannot be certain as to whether it will be able to successfully secure additional financing or the ultimate timing of such additional financing. In addition, even if the Company meets the first two performance milestones described above, Khosla must determine, in its sole discretion, that the purchase of additional notes is appropriate for the Company to continue its operations before the Company can make additional borrowings under the 2014 Note Purchase Agreement.
	If the Company successfully achieves its performance milestones that allow it to receive the full amount under the 2014 Note Purchase Agreement in the near term, it expects to be able to fund its operations and meet its obligations until approximately August 31, 2014, but will need to raise additional funds to continue its operations beyond that date. If the Company is not successful in achieving its performance milestones or if it is otherwise unable to raise additional funds beyond approximately August 31, 2014, the Company will not have adequate liquidity to fund its operations and meet its obligations (including its debt payment obligations), in which case it will likely be forced to voluntarily seek protection under the U.S. Bankruptcy Code (or an involuntary petition for bankruptcy may be filed against the Company). Even if the Company is able to achieve such performance milestones or secure any additional financing, any investment may require significant changes to the Company’s current business structure, including, but not limited to: a change in the focus of its business; suspension of some or all of its operations; delaying or scaling back its business plan, including its research and development programs; reductions in headcount, overhead and other operating costs; and the longer-term or permanent closing of its Columbus facility, each of which would have a material adverse effect on its business, prospects and financial condition.
	On October 18, 2013, the Company entered into a Senior Secured Convertible Promissory Note Purchase Agreement that was amended on October 20, 2013 and March 31, 2014 (the “October 2013 Note Purchase Agreement”) with Khosla Ventures III, LP (“KV III”), Khosla and VNK Management, LLC (“VNK” and, collectively with Khosla and KV III, the “Purchasers”) and KV III in its capacity as agent for the Purchasers. Also, on October 18, 2013, the Company entered into a Class A Common Stock Purchase Agreement (the “Stock Purchase Agreement”) with Gates Ventures, LLC (“Gates”) to purchase shares of the Company’s Class A Common Stock (such shares of Class A Common Stock, the “Gates Shares”).
	The Company’s private placements with Khosla and Gates involve two tranches. The commitment by Gates to close a second tranche will terminate on June 30, 2014 and the Company does not expect to be able to satisfy the closing conditions for that tranche in time to meet the deadline. Any funds from the second tranche of the Khosla private placement is unlikely to come in the near term because in order to close the second tranche the Company must, among other things, raise $400 million from one or more offerings, private placements or other financing transactions.
	As of March 31, 2014, the Company had cash and cash equivalents of $4.2 million. As of April 30, 2014 the Company had cash and cash equivalents of $3.3 million.
	The Company’s material liquidity needs over the next twelve months from April 30, 2014 consist of the following:
		•	Funding the Company’s research and development and overhead costs, which it expects to be approximately $35 million. The Company does not expect to generate sufficient revenue from the sale of its cellulosic fuel to allow it to fund these costs from internally generated cash from operations until the Company constructs its first standard commercial production facility and it is operational.
		•	Funding the Company’s debt service costs, which it expects to be approximately $3.8 million, assuming it continues to elect to pay-in-kind interest due under the Loan and Security Agreement (as defined below).
		•	Funding the current operating costs to maintain the Columbus facility in near ready startup mode, which the Company expects to be approximately $16 million. The Company expects to have a little to no revenue from its Columbus facility over the next 12 months, unless and until it restarts the facility.
	The Company expects any financing for the next commercial production facility will be contingent upon, among other things, successful fuel production at its existing Columbus facility, entering into satisfactory feedstock supply and offtake agreements for the next commercial production facility, receipt of necessary governmental and regulatory approvals and permits, there being no material adverse effect on the Company or its industry (including relevant commodity markets) and general market conditions. Longer term, the Company also anticipates material liquidity needs for the construction of additional commercial scale production facilities.
	The Company’s ability to obtain additional external debt financing is limited by the amount and terms of its existing borrowing arrangements and the fact that all of its assets have been pledged as collateral for these existing arrangements. In addition, any new financing will require the consent of our existing debt holders and may require the restructuring of our existing debt. A failure to make necessary timely payments under its existing debt instruments and to comply with the covenants under such debt instruments could result in an event of default which would have a material adverse effect on its business, prospects and financial condition.
	For example, the Company’s loan agreement with the Mississippi Development Authority requires semiannual payments on June 30 and December 31 each year. The Mississippi Development Authority (the “MDA”) requires certain investments in property, plant and equipment and certain expenditures for wages and direct local purchases, both of which the Company does not expect to satisfy by the requisite deadlines if the Columbus facility is not operating during 2014. If an event of default occurs and is continuing, the Mississippi Development Authority may accelerate amounts due under the loan agreement, which is secured by certain equipment, land and buildings of KiOR Columbus.
	Furthermore, there are cross-default provisions in certain of the Company’s existing debt instruments such that an event of default under one agreement or instrument could result in an event of default under another. If an event of default resulted in the acceleration of all of its payment obligations under its debt instruments as of April 30, 2014, it would be required to pay its lenders an aggregate of $287.4 million. In the event of an acceleration of amounts due under its debt instruments as a result of an event of default, the Company will not have sufficient funds and does not expect to be able to arrange for additional financing to repay its indebtedness or to make any accelerated payments, and the lenders could seek to enforce their security interests in the collateral securing such indebtedness. The Company’s failure to obtain additional external financing to fund its cash requirements would further cause noncompliance with its existing debt covenants which would have a material adverse effect on its business, prospects and financial condition. In addition, any new financing will require the consent of the Company’s existing debt holders and may require the restructuring of the Company’s existing debt.

Note_2_Summary_of_Significant_

Note 2 - Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Significant Accounting Policies [Text Block]	'
	2	Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to these rules and regulations. In the opinion of the Company, these financial statements contain all adjustments necessary to present fairly its financial position, results of operations, and changes in cash flows for the periods presented. All such adjustments represent normal recurring items, except as noted herein. These condensed consolidated financial statements are unaudited and should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the SEC on March 17, 2014. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. The unaudited interim condensed consolidated financial statements include the accounts of the Company and its consolidated subsidiary.
	Use of Estimates
	The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Accordingly, actual results could differ from these estimates.
	Restricted Cash—Compensating Balances
	The Company had restricted cash of $200,000 at March 31, 2014. The restricted cash relates to credit cards issued to the Company. Under the terms of this arrangement, the Company is required to maintain with the issuing bank a compensating balance, restricted as to use, of $200,000. Restricted cash is presented as a current asset as it relates to outstanding credit card balances that are presented as a current liability.
	Common Stock Warrants
	The Company estimates the fair value of its common stock warrants using the Black-Scholes option-pricing model. The risk-free interest rate was based on the market yield currently available on United States Treasury securities with maturities approximately equal to the warrant’s expected term. Expected term represents the period that the Company’s common stock warrants are expected to be outstanding. In the case of the common stock warrants issued under the Loan and Security Agreement and 2014 Note Purchase Agreement, the warrants generally have a term of seven years. The expected volatility was based on the historical stock volatilities of several comparable publicly-traded companies over a period equal to the expected terms of the warrants, as the Company does not have a long trading history to use to estimate the volatility of its own common stock. The Company’s expected dividend yield was assumed to be zero as it has not paid, and does not anticipate paying, cash dividends on its shares of common stock.
	The Company will continue to use judgment in evaluating the expected volatility, expected term, and dividend rate related to its common stock warrants on a prospective basis and incorporating these factors into its warrant-valuation model.
	Net Loss per Share of Common Stock
	Basic net loss per share of common stock is computed by dividing the Company’s net loss attributable to its stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share of common stock is computed by giving effect to all potentially dilutive securities, including stock options, warrants and convertible preferred stock. Basic and diluted net loss per share of common stock attributable to the Company’s stockholders was the same for all periods presented on the Consolidated Statements of Operations and Comprehensive Income, as the inclusion of all potentially dilutive securities outstanding would have been antidilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share are the same for each period presented.
	The following table presents the calculation of historical basic and diluted net loss per share of common stock attributable to the Company’s common stockholders:
			Three Months Ended March 31,
			2014			2013
	Net loss per share:
	Numerator:
	Net loss attributable to Class A common stockholders – basic and diluted		$	(16,455	)	$	(15,646	)
	Net loss attributable to Class B common stockholders – basic and diluted			(14,139	)		(15,689	)
	Net loss attributable to Class A common stockholders and
	Class B common stock holders – basic and diluted		$	(30,594	)	$	(31,335	)
	Denominator:
	Weighted-average Class A common shares used in computing net loss per share of Class A common stock — basic and diluted			59,365			52,716
	Weighted-average Class B common shares used in computingnet loss per share of Class B common stock — basic and diluted			51,013			52,856
	Weighted-average Class A common stock and Class B common stock – basic and diluted			110,378			105,572
	Net loss per share of Class A common stock — basic and diluted		$	(0.28	)	$	(0.30	)
	Net loss per share of Class B common stock — basic and diluted		$	(0.28	)	$	(0.30	)
	The following outstanding shares on a weighted-average basis of potentially dilutive securities were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been antidilutive:
			Three Months Ended March 31,
			2014			2013
			(Amounts in thousands)
	Common stock warrants			6,471			1,695
	Restricted stock awards			2,881			2,525
	Stock option awards			9,465			10,800
	Senior secured convertible promissory note (if converted)			33,033			-
	Total			51,850			15,020
	Recent Accounting Pronouncements
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2014-08 (ASU 2014-08) “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity." ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. It is effective for annual periods beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. The Company is currently in the process of evaluating the impact of the adoption on our consolidated financial statements.

Note_3_Fair_Value_of_Financial

Note 3 - Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Disclosures [Text Block]	'
	3	Fair Value of Financial Instruments
	The Company’s assessment of the significance of a particular input to the fair value measurement of an asset or liability in its entirety requires management to make judgments and consider factors specific to the asset or liability. As of March 31, 2014 and December 31, 2013, the Company considered cash and cash equivalents, restricted cash, accounts payable, and accrued liabilities to be representative of their fair values because of their short-term maturities.
	The following table sets forth the Company’s financial instruments that were measured at fair value on a recurring basis at March 31, 2014 and December 31, 2013 by level within the fair value hierarchy.
			31-Mar-14
			Level 1		Level 2		Level 3		Total
	Financial Assets
	Money market funds			3,001		-		-		3,001
	Total financial assets		$	3,001	$	-	$	-	$	3,001
			31-Dec-13
			Level 1		Level 2		Level 3		Total
	Financial Assets
	Money market funds			23,001		-		-		23,001
	Total financial assets		$	23,001	$	-	$	-	$	23,001
	Assets and liabilities recorded at fair value in the condensed consolidated financial statements are categorized based upon the level of judgment associated with the inputs used to measure their fair value. Hierarchical levels, which are directly related to the amount of subjectivity associated with the inputs to the valuation of these assets or liabilities are as follows:
		•	Level 1 — Observable inputs, such as quoted prices in active markets for identical assets or liabilities.
		•	Level 2 — Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
		•	Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities and which reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to risk inherent in the valuation technique and the risk inherent in the inputs to the model.
	The Company has estimated the fair value of its long-term debt obligations based upon discounted cash flows with Level 3 inputs, such as the terms that management believes would currently be available to the Company for similar issues of debt, taking into account the current credit risk of the Company and other factors. At March 31, 2014 and December 31, 2013, the carrying value of the Alberta Lenders/Khosla (as those terms are defined below) Term Loan approximated its fair value. The following table sets forth the carrying value of the Company’s October 2013 Note Purchase Agreement and MDA loan (the “MDA Loan”) and their associated estimated fair values at March 31, 2014 and December 31, 2013.
			31-Mar-14				31-Dec-13
	Issuance		Carrying Value		Estimated Fair		Carrying Value
					Value				Estimated Fair
									Value
			(Amounts in thousands)				(Amounts in thousands)
	October 2013 Note Purchase Agreement			88,697		52,505		88,408		51,124
	MDA loan			43,575		46,303		42,981		44,269
	The Company’s assets and liabilities that are measured at fair value on a non-recurring basis include long-lived assets and intangible assets. These items are recognized at fair value when they are considered to be impaired. At March 31, 2014, there were no required fair value adjustments for assets and liabilities measured at fair value on a non-recurring basis. For the year ended December 31, 2013, the company’s long-lived assets were written down to a fair value of $52.3 million, resulting in an impairment charge of $196.3 million using Level 3 inputs.

Note_4_Balance_Sheet_Component

Note 4 - Balance Sheet Components	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Supplemental Balance Sheet Disclosures [Text Block]	'
	4. Balance Sheet Components
	Inventories consist of the following:
		March 31,		December 31,
		2014		2013
		(Amounts in thousands)
	Raw materials	$	1,889	$	2,040
	Work in process		17		72
	Finished goods		152		441
	Stores, supplies, and other		1,011		973
	Total Inventories	$	3,069	$	3,526
	Other accrued liabilities consist of the following:
		March 31,		December 31,
		2014		2013
		(Amounts in thousands)
	Accrued interest expense	$	1,405	$	1,351
	Accrued vacation		1,065		976
	Accrued property taxes		470		1,587
	Accrued Mississippi franchise taxes		1,727		2,122
	Accrued utilities		192		949
	Accrued legal fees		1,062		134
	Other		2,610		1,414
	Total Accrued liabilities	$	8,531	$	8,533

Note_5_Property_Plant_and_Equi

Note 5 - Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	5. Property, Plant and Equipment
	Property, plant and equipment consist of the following:
		March 31,			December 31,
		2014			2013
		(Amounts in thousands)
	Property, Plant and Equipment:
	Construction in progress	$	12,999		$	12,973
	Lab and testing equipment		5,470			5,470
	Leasehold improvements		5,139			5,139
	Manufacturing machinery and equipment		238,888			238,888
	Computer equipment and software		1,355			1,355
	Furniture and fixtures		134			134
	Land		550			550
	Buildings		1,666			1,666
	Impairment Loss		(196,269	)		(196,269	)
	Total property, plant and equipment		69,932			69,906
	Less: accumulated depreciation		(18,378	)		(17,606	)
	Net property, plant and equipment	$	51,554		$	52,300
	Depreciation expense was approximately $0.8 million and $1.5 million for the three months ended March 31, 2014 and 2013, respectively.  There was no interest capitalized as of March 31, 2014.
	All of the Company’s long-lived assets are located in the United States.

Note_6_Intangible_Assets

Note 6 - Intangible Assets	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block [Abstract]	'
Intangible Assets Disclosure [Text Block]	'
	6	Intangible Assets
	Intangible assets consist of the following:
			March 31,			December 31,
			2014			2013
			(Amounts in thousands)
	Intangible Assets:
	Purchased biomass conversion technology		$	2,599		$	2,599
	Accumulated amortization			(1,097	)		(1,054	)
	Purchased biomass conversion technology, net			1,502			1,545
	Technology licenses			700			700
	Accumulated amortization			(130	)		(121	)
	Technology licenses, net			570			579
	Intangible assets, net		$	2,072		$	2,124

Note_7_LongTerm_Debt

Note 7 - Long-Term Debt	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block [Abstract]	'
Long-term Debt [Text Block]	'
	7	Long-Term Debt
	Long-term debt consists of the following:
			March 31,			December 31,
			2014			2013
			(Amounts in thousands)
	Long-Term Debt:
	Mississippi Development Authority Loan		$	69,375		$	69,375
	Loan and Security Agreement			109,142			104,447
	October 2013 Note Purchase Agreement			95,697			95,697
	Less: unamortized debt discounts			(41,255	)		(41,571	)
	Long-term debt, net of discount			232,959			227,948
	Less: current portion			(3,750	)		(3,750	)
	Long-term debt, less current portion, net of discount		$	229,209		$	224,198
	Senior Secured Promissory Note and Warrant Purchase Agreement
	On March 31, 2014, the Company entered into a Senior Secured Promissory Note and Warrant Purchase Agreement with Khosla, and Khosla in its capacity as agent for the 2014 Note Purchaser.
	The 2014 Note Purchase Agreement contemplates multiple tranches of financing of up to $25 million. The first tranche, which closed on April 3, 2014, consisted of the purchase by Khosla of $5.0 million of Senior Secured Mandatorily Convertible Notes (the “2014 Notes”) in exchange for a like amount of cash. The remaining tranches consist of the sale of additional 2014 Notes (the “Additional 2014 Notes”) to the 2014 Note Purchaser in principal amounts to be mutually agreed between the 2014 Note Purchaser and the Company for a like amount of cash at the beginning of each full month following the first tranche closing, provided that in each preceding month the Company satisfactorily achieves each of the milestones set forth in Annex A to the 2014 Note Purchase Agreement. The performance milestones require (i) the Company to demonstrate that it has made material progress in implementing its business, financial, operational and technology plans, (ii) the Company to demonstrate that there is a likelihood of eventual commercial success of the Company’s business plan when considered in light of both internal and external factors, including without limitation, market conditions, costs, competitive developments and an ability to secure financing for the Company and (iii) Khosla to believe that the purchase of additional notes is appropriate for the Company to continue its operations.
	Khosla, or, if additional 2014 Note Purchasers become party to the 2014 Note Purchase Agreement in the future, the 2014 Note Purchasers holding a majority of the principal amount of all then-outstanding 2014 Notes (the “Required Purchasers”) will determine in their sole discretion whether applicable milestones have been satisfied. The aggregate amount of Additional 2014 Notes that may be sold under the 2014 Note Purchase Agreement may not exceed $20 million.
	The closing of the additional tranches is subject to standard conditions, including notification pursuant to the Hart-Scott-Rodino Act that any applicable waiting period has expired, receipt of any necessary approvals by governmental authorities and the satisfaction of applicable milestones.
	In addition, at each closing, the Company will issue to each 2014 Note Purchaser a warrant (each, a “2014 Warrant”) exercisable for a number of shares of Class A Common Stock equal to a fraction (i) whose numerator is 10% of the principal amount of the Note issued to such 2014 Note Purchaser as such closing, and (ii) whose denominator is $0.573. The amount of shares of Class A Common Stock for which a 2014 Warrant is exercisable assumes it is not being exercised on a net issuance basis.
	In connection with the initial $5 million closing on April 3, 2014, the Company issued to Khosla a 2014 Warrant to purchase an aggregate of 872,600 shares of Class A common stock of the Company at an exercise price of $0.573 per share, which was the consolidated closing bid price for the Company’s Class A common stock on March 31, 2014. The 2014 Warrant was issued as partial consideration for Khosla’s entry into the 2014 Note Purchase Agreement and will expire 7 years from the date of the grant. Each 2014 Warrant may be exercised by payment of the exercise price in cash or on a net issuance basis.
	The 2014 Notes have a maturity date that may be elected by the Required Purchasers at any time after July 1, 2014, provided that the Required Purchasers provide the Company with at least 10 days advance written notice of such date and provided further that if the Required Purchasers have not provided such notice prior to March 31, 2017, then the Maturity Date shall be April 2, 2017. The 2014 Notes accrue interest at a rate of 8% per annum (the “Applicable Rate”). The Company will pay interest on the principal amount of the Note on the first day of each full calendar month, beginning on July 1, 2014, provided that such interest may be paid in kind at the Company’s election by adding the interest then due to the unpaid principal amount of the Note. The 2014 Notes are secured by liens on fixtures, personal property and other assets of the Company specified in the 2014 Note Purchase Agreement. The 2014 Notes cannot be transferred except in the event of a change in control or to a permitted transferee.
	In connection with the 2014 Note Purchase Agreement, the Company must also comply with certain affirmative covenants, such as furnishing financial statements to the 2014 Note Purchasers, and negative covenants, including a limitation on (i) repurchases or redemptions of the Company’s stock, subject to certain exceptions and (ii) the incurrence of debt and the making of investments other than those permitted by the 2014 Note Purchase Agreement.
	The obligations of the Company under the 2014 Note Purchase Agreement may be accelerated upon the occurrence of an event of default under the 2014 Note Purchase Agreement, which includes customary events of default including, without limitation, payment defaults, defaults in the performance of affirmative and negative covenants, the inaccuracy of representations or warranties, bankruptcy and insolvency related defaults, defaults relating to judgments, cross-defaults and the occurrence of any material adverse effects, as defined under the 2014 Note Purchase Agreement.
	Senior Secured Convertible Promissory Note Purchase Agreement
	On October 18, 2013, the Company entered into the October 2013 Note Purchase Agreement with the Purchasers. The October 2013 Note Purchase Agreement was amended on October 20, 2013 and March 31, 2014, and the October 2013 Note Purchase Agreement, as amended, is described below.
	The October 2013 Note Purchase Agreement contemplates two tranches of financing. The first tranche consisted of the issuance of $42.5 million of notes (the “2013 Notes”) in exchange for a like amount of cash and approximately $53.2 million of 2013 Notes in exchange for a like amount of existing indebtedness outstanding under the Loan and Security Agreement. The second tranche consists of the sale of up to $7.5 million of shares of the Company’s Class A Common Stock in exchange for a like amount of existing indebtedness equal to $25 million in principal amount, plus accrued interest and applicable fees outstanding under the Loan and Security Agreement prior to March 17, 2013. The shares of the Company’s Class A Common Stock issuable as a part of (i) the conversion of 2013 Notes in the first tranche, (ii) the second tranche and (iii) a part of the Purchaser’s option or the Company’s put option, as described below, are referred to as the “NPA Shares”.
	In the first tranche, which closed on October 21, 2013, KV III and VNK purchased 2013 Notes in an aggregate amount of $42.5 million, resulting in gross proceeds to the Company of $42.5 million, and Khosla purchased 2013 Notes in an aggregate amount of approximately $53.2 million pursuant to the conversion of outstanding indebtedness owed to Khosla for loans received from Khosla from and after March 17, 2013 under the Loan and Security Agreement.
	The 2013 Notes bear no interest and are convertible into shares of Class A Common Stock at a conversion price of $2.897 per share (such price, as it may be adjusted from time to time as set forth below, the “Conversion Price”), which represents a 25% premium over the average daily volume weighted average price of the Company’s Class A Common Stock for the 20 trading days ending on October 17, 2013. The Conversion Price may be decreased in the event of certain subsequent equity issuances (each, a “Dilutive Issuance”) by the Company below the Conversion Price of the 2013 Notes between the date of the first tranche closing and the earlier of (i) October 21, 2014 and (ii) the conversion of the 2013 Notes. If the Company consummates a Financing Event (as defined below) after the one year anniversary of the first tranche closing, 2013 the Notes will automatically convert simultaneous with the closing of the Financing Event. Upon the occurrence of any of the foregoing events, the principal amount of the 2013 Notes (which, for clarification, will include any interest previously paid in kind) will automatically be converted into shares of the Company’s Class A Common Stock at the then effective Conversion Price.
	The $50 million borrowed from Khosla, made available under Amendment No. 1 to the Loan and Security Agreement, plus paid-in-kind interest, accrued interest and applicable fees, totals the $53.2 million indebtedness exchanged for like amount of 2013 Notes. The Company accounted for this exchange as a troubled debt restructuring as there is a significant decrease in the effective interest rate due to the stated rate changing from 16% to zero and the maturity date being extended from February 1, 2016 to February 1, 2020. There was no gain or loss recognized as a result of the exchange as the undiscounted cash flows of the $53.2 million Note exceeded the carrying value of the Loan and Security Agreement indebtedness being exchanged immediately prior to the exchange. Immediately prior to the exchange there was an unamortized discount of approximately $7.5 million against the Loan and Security Agreement indebtedness being exchanged, giving it a carrying value of approximately $45.7 million.
	The $53.2 million Note plus the $42.5 million Note issued for cash, totaling $95.7 million, is the gross value of the 2013 Notes and the unamortized discount of $7.5 million will remain against the debt. The Company established a new effective interest rate to amortize the discount through February 1, 2020.
	The second tranche will occur subsequent to the receipt by the Company of aggregate net cash proceeds of at least $400 million from one or more offerings, private placements or other financing transactions comprised of the issuance of 2013 Notes and NPA Shares under the October 2013 Note Purchase Agreement, a pre-approved high yield debt financing and/or the sale of Class A Common Stock (the “Project Financing Amount”). The closing of the second tranche is subject to other standard conditions. In the second tranche, KV III and VNK will purchase NPA Shares in an aggregate amount of up to $7.5 million and Khosla will purchase NPA Shares pursuant to the conversion of the amount of the indebtedness (equal to $25 million in principal amount, plus accrued interest and applicable fees) owed to Khosla under the Loan and Security Agreement for loans received from Khosla prior to March 17, 2013 under such agreement. The NPA Shares will be purchased for a price equal to the Conversion Price.
	In addition, the Company has a put option that it can exercise in the event it raises the Project Financing Amount (such event, the “Financing Event”). At any point beginning 365 days following the consummation of the Financing Event until the two year anniversary of the consummation of the Financing Event (the “Two Year Date”), the Company may, at its sole election, sell shares of Class A Common Stock to Khosla in an aggregate amount of up to $35 million. Such shares will be purchased for a price equal to the Conversion Price. The put option is subject to adjustment, as set forth below, although in no event will the put option be for more than $35 million in NPA Shares. The closing of the put option is subject to standard conditions.
	In the event the Company consummates sales of additional 2013 Notes (or substantially similar indebtedness) or its equity securities resulting in aggregate proceeds to the Company of $100 million or more before the put option is exercised, the put option will terminate. If the Company consummates sales of additional 2013 Notes (or substantially similar indebtedness) or its equity securities resulting in aggregate proceeds to the Company of less than $100 million before the put option is exercised, Khosla will purchase a number of shares equal to the difference (the “New Commitment”) between $100 million and the funds actually raised (the “Raised Amount”), which Raised Amount shall include the aggregate value of the 2013 Notes and the NPA Shares (other than the 2013 Notes and NPA Shares purchased by Khosla) and the Gates Shares. The New Commitment will be in lieu of the commitment to purchase $35.0 million of NPA Shares as a part of the put option as described above.
	In addition, Khosla, or its assignee, has an option it can exercise prior to the earlier of (i) the Two Year Date and (ii) February 1, 2020 to purchase the NPA Shares it would otherwise purchase in the second tranche or as a part of the put option so long as the Purchaser beneficially owns at least 20% of the shares of Class A Common Stock issued or issuable upon conversion of the 2013 Notes purchased by such Purchaser.
	In connection with the October 2013 Note Purchase Agreement, the Company must also comply with certain affirmative covenants, such as furnishing financial statements to the Purchasers, and negative covenants, including a limitation on (i) repurchases or redemptions of the Company’s stock, subject to certain exceptions, (ii) the incurrence of capital expenditures in excess of $50 million prior to receipt by the Company of the Project Financing Amount and (iii) the incurrence of debt and the making of investments other than those permitted by the October 2013 Note Purchase Agreement. Furthermore, the Purchasers have a right of first offer for the offer or sale by the Company of any new securities, provided that such Purchaser beneficially owns 10% or more of the NPA Shares issued to the Purchaser under the October 2013 Note Purchase Agreement at the time of such offer or sale. Amendment No. 2 to the October 2013 Note Purchase Agreement provided for, among other things, the 2014 Notes to be deemed permitted indebtedness and the liens securing the 2014 Notes to be permitted liens under the October 2013 Note Purchase Agreement.
	The obligations of the Company under the October 2013 Note Purchase Agreement may be accelerated upon the occurrence of an event of default under the October 2013 Note Purchase Agreement, which includes customary events of default including, without limitation, payment defaults, defaults in the performance of affirmative and negative covenants, the inaccuracy of representations or warranties, bankruptcy and insolvency related defaults, defaults relating to judgments and cross-defaults.
	The shares of Class A Common Stock issuable upon conversion of the Notes were not transferrable for 6 months following the closing of the first tranche, subject to exceptions for transfers to permitted transferees specified in the October 2013 Note Purchase Agreement. Any permitted transferees must agree to be bound by the terms and conditions of the October 2013 Note Purchase Agreement, including with respect to the limitations on transfer of the securities such permitted transferee receives. The Notes cannot be transferred except in the event of a change in control or to a permitted transferee.
	Alberta Lenders/Khosla Term Loan
	Overview of the Loan and Security Agreement
	On January 26, 2012, the Company entered into a Loan and Security Agreement with 1538731 Alberta Ltd. as agent and lender, and 1538716 Alberta Ltd. (the “Alberta Lenders”), and Khosla, (collectively, the “Lenders”). Pursuant to the agreement, the Alberta Lenders made a term loan to the Company in the principal amount of $50 million and Khosla made a term loan to the Company in the principal amount $25 million, for a total of $75 million in principal amount (the “Loan Advance”). At closing, the Company paid the Lenders a facility of $750,000.
	In March 2013, the Company entered into Amendment No. 1 to the agreement, which, among other things, (i) increased the amount available under the facility by $50 million, which the Company borrowed in full and which was subsequently converted (along with accrued interest) into notes issued under the Company’s October 2013 Note Purchase Agreement described above, (ii) replaced the requirement to make installment payments of principal with a single balloon payment at maturity and (iii) allowed the Company to elect payment of paid-in-kind interest throughout the term of the loan.
	In connection with the amendment described above, the Company agreed to pay the Alberta Lenders $100,000 for costs and expenses and agreed to issue certain warrants as described below.
	In October 2013, the Company entered into Amendment No. 2 to the Loan and Security Agreement (“Amendment No. 2”) to modify the terms pursuant to which the obligations under the Loan and Security Agreement will convert to high yield debt and equity, as applicable, to require the conversion upon a project financing event of $400 million, including the issuance of equity and high yield debt on certain terms and conditions.
	In March 2014, the Company entered into Amendment No. 3 to the Loan and Security Agreement (as amended by Amendment No. 1, Amendment No. 2 and Amendment No. 3, the “Loan and Security Agreement”) to clarify that the secured obligations under the Loan and Security Agreement are subordinate to the 2013 Notes and 2014 Notes.
	As of August 2013, the Company had borrowed all amounts available under the Loan and Security Agreement.
	The Loan Advance bears interest from the funding date at 16.00% per annum (the “Loan Interest Rate”). The Company agreed to pay interest on the Loan Advance in arrears on the first day of each month, beginning March 1, 2012. The Company may elect payment of paid-in-kind interest, instead of cash interest, during the term of the loan. If the Company elects payment of paid-in-kind interest, the Company will issue Subsequent PIK Warrants (as defined below) that cover interest due over the following 12 months and the interest is added to the principal balance of the loan.
	The Loan Advance is payable in full at its stated maturity date of February 1, 2016. At the Company’s option, it may prepay the Loan Advance, in whole or in part (including all accrued and unpaid interest) at any time, subject to a prepayment premium if the Company prepays the Loan Advance prior to four years from the date of the loan. The prepayment premium is equal to 4% until the first anniversary of the date of the Loan and Security Agreement, and decreases by 1% on each subsequent anniversary.
	The Company also agreed to pay the Lenders an end of term charge equal to 9% of the aggregate amount of all advances made plus all interest paid-in-kind (instead of cash interest) upon the earlier to occur of the maturity of the Loan Advance, prepayment in full of the Loan Advance, or when the Loan Advance becomes due and payable upon acceleration. The Company is amortizing the end of charge term to interest expense and increasing the liability for the end of term charge over the life of the loan. The Company had amortized approximately $5.8 million as of March 31, 2014, which is included in the principal balance of the loan.
	The Company’s obligations under the Loan and Security Agreement may be accelerated upon the occurrence of an event of default under the Loan and Security Agreement, which includes customary events of default including, without limitation, payment defaults, defaults in the performance of affirmative and negative covenants, the inaccuracy of representations or warranties, bankruptcy and insolvency related defaults, defaults relating to judgments, cross-defaults, and a change of control default. The Loan and Security Agreement also provides for indemnification of 1538731 Alberta Ltd. as agent and the Lenders.
	The Company granted the Lenders a security interest in all or substantially all of its tangible and intangible property, including intellectual property, now owned or hereafter acquired, subject to certain exclusions.
	Warrants Issuable under the Loan and Security Agreement
	In connection with the Company’s initial entrance into the Loan and Security Agreement, the Company issued the Lenders warrants (each an “Initial Warrant”), to purchase an aggregate of 1,161,790 shares of the Company’s Class A common stock, subject to certain anti-dilution adjustments, at an exercise price of $11.62 per share, which was the consolidated closing bid price for its Class A common stock on January 25, 2012. The Initial Warrants were issued as partial consideration for the Lenders’ entry into the Loan and Security Agreement and will expire 7 years from the date of the grant. Each Initial Warrant may be exercised by payment of the exercise price in cash or on a net issuance basis.
	In partial consideration for Amendment No. 1 to the Loan and Security Agreement described above, the Company issued the Lenders warrants to purchase an aggregate of 619,867 shares of the Company’s Class A common stock for an exercise price per share of $5.71 (each an “ATM Warrant”). In addition, on the first day of each subsequent 12 month period, the Company has agreed to grant to the Lenders additional shares under their respective ATM Warrants equal to (i) 3.75% of the average principal balance of the Loan Advance as of the last calendar day of each of the 12 months for such 12 month period payable to such Lender as of the last calendar day of each 12 month period, divided by (ii) 100% of the volume-weighted average closing market price per share of its Class A Common Stock over the 20 consecutive trading days ending on, but excluding, the day of grant (the “Average Market Price”). As such, on March 18, 2014 the Company issued the Lenders ATM Warrants to purchase an aggregate of 3,032,406 shares of its Class A common stock for an exercise price of $1.37. The ATM Warrants expire on August 3, 2020. As the Company borrowed additional amounts under the Loan and Security Agreement and the principal balance increased, the Company issued additional shares under its ATM Warrants. In connection with the additional $50 million borrowed from Khosla, the Company issued to Khosla an ATM Warrant to purchase 480,123 shares of its Class A Common Stock at exercise prices ranging from $3.10 per share to $5.06 per share. The ATM Warrants issued to Khosla will not be exercisable until the ATM Warrant issuances have been approved by the Company’s stockholders. Khosla Ventures controls a majority of the voting power of the Company’s outstanding common stock and would therefore also control any such approval vote.
	In connection with each subsequent Loan Advance from Khosla, the Company issued to Khosla warrants to purchase shares of the Company’s Class A common stock (a “Subsequent Drawdown Warrant”). The number of shares of the Company’s Class A common stock underlying the Subsequent Drawdown Warrant (assuming no net issuance) is an amount equal to 18% of the amount of the subsequent Loan Advances from Khosla divided by the Average Market Price. The Subsequent Drawdown Warrants expire on August 3, 2020. In connection with the additional $50 million borrowed from Khosla, the Company issued to Khosla Subsequent Drawdown Warrants to purchase 2,139,997 shares of its Class A Common Stock at exercise prices ranging from $3.10 per share to $5.06 per share. The Subsequent Drawdown Warrants issued to Khosla will not be exercisable until the Subsequent Drawdown Warrant issuances have been approved by the Company’s stockholders.
	In addition, the Company must issue each Lender one or more additional warrants to purchase shares of the Company’s Class A common stock if the Company elects payment of paid-in-kind interest on the outstanding principal balance of the Loan Advance for any month (the “PIK Warrants”). Any PIK Warrants issued prior to the amendment of the Company’s Loan and Security Agreement are referred to as Initial PIK Warrants. Any PIK Warrants issued subsequent to the amendment of the Company’s Loan and Security Agreement are referred to as the Subsequent PIK Warrants.
	The Initial PIK Warrants were issued as partial consideration for the Lenders’ entry into the Loan and Security Agreement and will expire on August 3, 2020. The Company elected payment of paid-in-kind interest at the first of each month from March 2012 through February 2013, which required the Company to issue warrants to purchase an aggregate of 334,862 shares of its Class A common stock at exercise prices ranging from $11.62 to $13.15 per share to the Lenders through February 2013.
	The number of shares of the Company’s Class A common stock underlying the Subsequent PIK Warrants (assuming no net issuance) is an amount equal to 18% of the amount of interest paid-in-kind payable over the following 12 months divided by the Average Market Price. The Subsequent PIK Warrants expire on August 3, 2020. The Company elected to pay-in-kind interest over the 12 months following April 1, 2013. As such, in connection with closing Amendment No. 1, the Company issued the Lenders Subsequent PIK Warrants to purchase an aggregate of 478,626 shares of the Company’s Class A common stock for an exercise price per share of $5.71. In connection with the additional $50 million borrowed from Khosla, the Company issued to Khosla a Subsequent PIK Warrant to purchase 377,238 shares of its Class A Common Stock at exercise prices ranging from $3.10 per share to $5.06 per share. The Subsequent PIK Warrants issued to Khosla will not be exercisable until the Subsequent PIK Warrant issuances have been approved by the Company’s stockholders, which vote is controlled by Khosla Ventures. The paid-in-kind interest increased the Loan Advance balance by $28.4 million from inception of the loan to March 31, 2014.
	The Company has elected to pay-in-kind interest over the 12 months following April 1, 2014. As such, on March 18, 2014 the Company issued the Lenders Subsequent PIK Warrants to purchase an aggregate of 2,342,471 shares of its Class A common stock for an exercise price per share of $1.37.
	The number of shares for which each PIK Warrant, Subsequent Drawdown Warrant and ATM Warrant is exercisable and the associated exercise price is subject to certain anti-dilution adjustments. Each PIK Warrant, Subsequent Drawdown Warrant and ATM Warrant may be exercised by payment of the exercise price in cash or on a net issuance basis. The Initial Warrants, the PIK Warrants, the Subsequent Drawdown Warrants and the ATM Warrants obligate the Company to file a registration statement on Form S-3 covering the resale of such warrants and the shares of the Company’s Class A common stock issuable upon exercise of such warrants. Subsequent PIK Warrants, Subsequent Drawdown Warrants and ATM Warrants issued by the Company in connection with Amendment No. 1 required the Company to register the resale of such warrants and the shares underlying such warrants on a registration statement on Form S-3 by April 21, 2014 or else be subject to the liquidated damages described below. In connection with Amendment No. 3 to the Loan and Security Agreement, the Lenders agreed to waive (the “Waiver”) the Company’s compliance with any requirement to register the Warrant Agreements, the Additional Warrant Agreements, the Post-First Amendment Additional Warrant Agreements, the ATM Warrant Agreements and all shares of Class A Common Stock issued or issuable upon exercise thereof on Form S-3, as well as any liquidated damages owed to the Lenders as a result of such failure to register the above-referenced warrants and shares on Form S-3. The Waiver applies from the original date of issuance of the warrants until and through January 21, 2015.
	If a registration statement is not declared effective on or prior to January 21, 2015 (the “Registration Deadline”), or if the registration statement has been declared effective but has been suspended, the Company will pay to the warrantholder liquidated damages. The liquidated damages payable are an amount equal to the product of (i) the aggregate exercise price of the warrant and the warrant shares then held by the warrantholder, which are not able to be sold pursuant to a registration statement for the reasons previously described (the “Aggregate Share Price”), multiplied by (ii) one and one-half hundredths (.015), for each 30 day period, (A) after the Registration Deadline and prior to the date the registration statement is declared effective by the SEC, and (B) during which sales of any warrants or warrant shares covered by a registration statement cannot be made pursuant to any such registration statement after the registration statement has been declared effective, subject to limited exceptions. The liquidated damages are payable in cash within five trading days after the end of each 30 day period that gives rise to the payment obligation, but are limited to 25% of the Aggregate Share Price paid by (or to be paid by) a warrantholder for its warrant shares.
	The Company and the Lenders have agreed that without the Company first obtaining the approval from its stockholders, which vote is controlled by Khosla Ventures, the Company will not have any obligation to issue, and will not issue, any warrants under the Loan and Security Agreement (including without limitation the ATM Warrants, the Subsequent Drawdown Warrants and the Subsequent PIK Warrants) to the extent that their issuance, when aggregated, would obligate the Company to issue more that 19.99% of the Company’s outstanding Class A common stock (or securities convertible into such Class A common stock), or the outstanding voting power, as calculated immediately prior to the execution of the amendment (subject to appropriate adjustments for any stock splits, stock dividends, stock combinations or similar transactions), in each case at a price less than the greater of the book or market value of the Company’s Class A common stock.
	Mississippi Development Authority Loan
	In March 2011, KiOR Columbus entered into a loan agreement with the MDA, pursuant to which the MDA has agreed to make disbursements to KiOR Columbus from time to time, in a principal amount not to exceed $75 million, to reimburse costs incurred by KiOR Columbus to purchase land, construct buildings and to purchase and install equipment for use in the manufacturing of the Company’s cellulosic transportation fuels from Mississippi-grown biomass. Principal payments on the loan are due semiannually on June 30 and December 31 of each year and commenced on December 31, 2012 and will be paid on such dates over 20 years. In addition, the Company is required to pay the entire outstanding principal amount of the loan, together with all other applicable costs, charges and expenses no later than the date 20 years from the date of its first payment on the loan. The loan is non-interest bearing.
The loan agreement contains no financial covenants. Events of default include a failure by KiOR Columbus or KiOR to make specified investments within Mississippi by December 31, 2015, including an aggregate $500.0 million investment in property, plant and equipment located in Mississippi and expenditures for wages and direct local purchases in Mississippi totaling $85.0 million. Based on its current estimates, the Company believes that it will be unable to meet the specified investment requirement in property, plant and equipment under its MDA Loan and if the Columbus facility is not operating during 2014, it expects it will be unable to meet the specified expenditures for wages and direct local purchases. Failure to meet these requirements would constitute a default under its MDA Loan. Any defaults under its MDA Loan could, in turn, result in cross defaults under its other loan facilities.
The Company is a parent guarantor for the payment of the outstanding balance under the loan. In addition, unless it obtains near term additional financing, the Company does not expect to have sufficient funds available to make its payment to the MDA due on June 30, 2014. If an event of default occurs and is continuing, the MDA may accelerate amounts due under the loan agreement. The loan is secured by certain equipment, land and buildings of KiOR Columbus.
In 2011, the Company received all $75.0 million under the MDA Loan to reimburse the Company for expenses incurred on the construction of its initial-scale commercial production facility located in Columbus, Mississippi. As of March 31, 2014, borrowings of approximately $69.4 million under the MDA Loan were outstanding.
The non-interest bearing component of the MDA Loan was estimated to be approximately $32.2 million, which is recorded as a discount on the MDA Loan and a reduction of the capitalized cost of the related assets for which the Company was reimbursed in the same amount. The loan discount is recognized as interest expense, subject to interest capitalization during the construction phase, using the effective interest method. As of March 31, 2014, $6.4 million of the loan discount had been recognized as interest expense and subsequently capitalized to the extent allowed.
Interest expense
For the three months ended March 31, 2014 and 2013, interest expense incurred was $7.1 million and $6.0 million, respectively, of which zero and approximately $3.8 million, respectively, was capitalized.

Note_8_Income_Taxes

Note 8 - Income Taxes	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	8	Income Taxes
	The effective tax rate for the three months ended March 31, 2014 and 2013 was 0%.
	At March 31, 2014, the Company had a net federal income tax net operating loss (“NOL”) carryforward balance of $89.9 million. If unused, the net operating loss carryforwards begin expiring in 2028. The Company has a full valuation allowance for its net deferred tax assets because the Company has incurred losses since inception. Certain changes in the ownership of the Company could result in limitations on the Company’s ability to utilize the federal net operating loss carryforwards. The Company has incurred overall net windfalls as a result of the difference between the book and tax deductions for restricted stock. Since the Company is in a taxable loss position for 2014 and cannot carry back the NOL to generate a cash tax refund, the benefit of the excess tax deduction has not been recorded to additional paid-in capital in the financial statements. In addition, a deferred tax asset for the net operating loss created by the windfall has not been recorded. The estimated net suspended NOL at March 31, 2014 is $4.7 million.
	The Company’s only taxing jurisdictions are the United States, Texas, and Mississippi. The Company’s tax years 2010 to present remain open for federal examination.

Note_9_Commitments_and_Conting

Note 9 - Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	9	Commitments and Contingencies
	Litigation
	From time to time, the Company may be subject to legal proceedings and claims that arise in the ordinary course of business.
	On August 20, 2013, Michael Berry, a purported purchaser of the Company’s common stock, filed a complaint in the United States District Court for the Southern District of Texas against the Company, its Chief Executive Officer, and its former Chief Financial Officer, captioned Michael Berry v. KiOR, Inc., Fred Cannon, and John Karnes. The plaintiff alleges violations of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and Rule 10b-5 promulgated under the Exchange Act. The plaintiff sought to represent a class of purchasers of the Company’s securities from August 14, 2012 to August 7, 2013, and alleged that during this period the market price of the Company’s common stock was artificially inflated by allegedly false or misleading statements principally concerning the timing of projected biofuel production levels at the Company’s Columbus, Mississippi facility. On October 21, 2013, two other purported purchasers of the Company’s common stock, Sharon Kegerreis and Dave Carlton, filed motions to be appointed as lead plaintiffs in connection with this putative class action and to have their attorneys approved as lead counsel. Mr. Berry did not file a motion to be appointed as lead plaintiff. On November 25, 2013, Sharon Kegerreis and Dave Carlton were appointed Lead Plaintiffs and their selection of co-lead counsel was approved by the Court. Lead Plaintiffs then filed an amended class action complaint on January 27, 2014, alleging the Exchange Act and Rule 10b-5 violations of the original complaint and seeking to represent a class of purchasers of the Company’s securities from August 14, 2012 to January 8, 2014. Lead Plaintiffs seek compensatory damages in favor of all members of the class, as well as attorneys’ fees and litigation costs. On March 25, 2014, the defendants moved to dismiss the amended complaint on grounds that it failed to satisfy the pleading requirements of the Private Securities Litigation Reform Act. Lead Plaintiffs are expected to file a response to this motion on May 26, 2014, to which the defendants will thereafter respond. The Court has scheduled oral argument on the defendants’ motion for September 3, 2014.
	On December 12, 2013, Gary Gedig, a purported purchaser of the Company’s common stock, filed a shareholder derivative complaint in the United States District Court for the Southern District of Texas, allegedly on behalf of the Company, against the Company, its Chief Executive Officer, its former Chief Financial Officer, and some of its outside directors. This purported derivative action is captioned Gary Gedig v. Fred Cannon, John Karnes, Samir Kaul, David Paterson, William Roach, and Gary Whitlock. Plaintiff alleges breach of fiduciary duties in connection with allegedly false or misleading statements about the progress at the Company’s Columbus, Mississippi facility and the timing of projected biofuel production levels. Plaintiff seeks corporate governance changes, damages, disgorgement, and restitution from defendants in favor of the Company, and attorneys’ fees and litigation costs. On February 21, 2014, the defendants moved to dismiss the complaint on grounds that Plaintiff failed to plead demand futility and that the complaint fails to state a claim upon which relief can be granted. On February 25, 2014, the case was transferred to the Honorable Lee Rosenthal, before whom the Berry putative class action is pending. On April 11, 2014, Plaintiff filed an opposition to the motions to dismiss, to which the defendants filed reply briefs on April 25, 2014. The Court has not indicated whether it will hear oral argument before deciding the defendants’ dismissal motions.
	The Company denies any allegations of wrongdoing and intends to vigorously defend against these lawsuits. However, there is no assurance the Company will be successful in its defenses or that insurance will be available or adequate to fund any settlement or judgment or the litigation costs of these actions. Moreover, the Company is unable to predict the outcome or reasonably estimate a range of possible loss at this time, however a finding against the Company could have a material adverse effect on its financial condition.
	On January 28, 2014, the SEC served the Company with a subpoena, pursuant to a formal order of investigation, seeking documents about, among other subject matters, the progress at its Columbus facility and the timing of projected biofuel production levels. The Company is committed to cooperating with the SEC and has been responding to the subpoena request. It is not possible at this time to predict the outcome of the SEC investigation, including whether or when any proceedings might be initiated, when these matters may be resolved or what, if any, penalties or other remedies may be imposed.
	On March 10, 2104, the United States Department of Labor (“DOL”) served the Company with notice that a complaint had been filed with the DOL by a former employee. The Complainant alleges violations of the Corporate and Criminal Fraud Accountability Act of 2002 (Title VIII of the Sarbanes-Oxley Act) in connection with the Company’s termination of his employment on January 20, 2014, and seeks back pay, front pay, lost benefits, compensatory damages, litigation costs, and attorneys’ fees. On April 21, 2014, the Company filed its response to the complaint. The Company denies any allegations of wrongdoing in the employee’s termination. The Company intends to fully cooperate with the DOL investigation. It is not possible at this time to predict the outcome of the DOL investigation, including whether or when any proceedings might be initiated, when these matters may be resolved or what, if any, penalties or other remedies may be imposed.
	Except for the matters described above, the Company is not a party to any material litigation or proceeding and are not aware of any material litigation or proceeding pending or threatened against us.
	Commitments under the Mississippi Development Authority Loan
	Under the MDA Loan agreement, KiOR Columbus committed to make specified investments within Mississippi by December 31, 2015, including an aggregate $500.0 million investment in property, plant and equipment located in Mississippi and expenditures for wages and direct local purchases totaling $85.0 million. Based on its current estimates, the Company believes that it will be unable to meet the specified investment requirement in property, plant and equipment under its MDA Loan and if the Columbus facility is not operating during 2014, it expects it will be unable to meet the specified expenditures for wages and direct local purchases. Failure to meet these requirements would constitute a default under its MDA Loan. Any defaults under its MDA Loan could, in turn, result in cross defaults under its other loan facilities. The Company is a parent guarantor for the payment of the outstanding balance under the loan. As of March 31, 2014, KiOR Columbus had $69.4 million in outstanding borrowings under the loan, which are guaranteed by the Company.

Note_10_RelatedParty_Transacti

Note 10 - Related-Party Transactions	3 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions Disclosure [Text Block]	'
	10	Related-Party Transactions
	In January 2012, the Company entered into a Loan and Security Agreement with the Alberta Lenders and Khosla, in which the Alberta Lenders have made a term loan to the Company in the principal amount of $50 million and Khosla has made a term loan to the Company in the principal amount $25 million, for a total of $75 million in principal amount. In March 2013, the Company entered into Amendment No. 1 to its Loan and Security Agreement which, among other things, increased the amount available from Khosla under the facility by $50 million, all of which has been borrowed by the Company. In October 2013, the Company entered into Amendment No. 2 to the Loan and Security Agreement to modify the terms pursuant to which the obligations under the Loan and Security Agreement will convert to high yield debt and equity, as applicable, to require the conversion upon a project financing event of $400 million, including the issuance of equity and high yield debt on certain terms and conditions.
	On October 18, 2013 the Company entered into the October 2013 Note Purchase Agreement with the Purchasers. The October 2013 Note Purchase Agreement was amended on October 20, 2013 and March 31, 2014. In the as amended agreement KV III, VNK and Khosla purchased an aggregate combined total of $95.7 million of Notes in exchange for cash and the conversion of a portion of the Company’s outstanding indebtedness.
	In March 2014, the Company entered into Amendment No. 3 to the Loan and Security Agreement to clarify that the secured obligations under the Loan and Security Agreement are subordinate to the Company’s obligations under the 2013 Notes and 2014 Notes.
	On March 31, 2014, the Company entered into the 2014 Note Purchase Agreement with the 2014 Note Purchaser. The 2014 Note Purchase Agreement contemplates multiple tranches of financing of up to $25 million. The first tranche, which closed on April 3, 2014, consisted of the purchase by Khosla of $5.0 million in 2014 Notes in exchange for a like amount of cash.
	See Note 7 – Long-Term Debt for a description of the loans. The Alberta Lenders, Khosla, KV III and VNK are beneficial owners of more than 5% of the Company’s common stock.

Note_11_Stockholders_Equity

Note 11 - Stockholders' Equity	3 Months Ended
	Mar. 31, 2014
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity Note Disclosure [Text Block]	'
	11	Stockholders’ Equity
	Common Stock Warrants Outstanding
	Warrants Issued in Connection with Equipment Loans
	In connection with Equipment Loan #2, the Company issued warrants to purchase 16,998 shares of the Company’s Series B convertible preferred stock at an exercise price of $2.941 per share. The warrants are exercisable upon issuance and expire ten years from the issuance date. Upon the close of the Company’s initial public offering on June 29, 2011, warrants to purchase 16,998 shares of Series B convertible preferred stock automatically converted into warrants to purchase an equivalent number of Class A common stock. Warrants issued in connection with Equipment Loan #2 were still outstanding as of March 31, 2014.
	Warrants Issued in Connection with Amendments of Equipment and Business Loan
	In connection with the amendment to Equipment Loan #1 and the Company’s January 27, 2010 business loan agreement with Lighthouse Capital Partners VI, L.P. and Leader Lending, LLC (the “Business Loan”) in February 2011 and April 2011, the Company agreed to issue warrants to purchase $300,000 of securities issued in a next-round equity financing, which resulted in the Company issuing warrants to purchase 61,200 shares of Series C convertible preferred stock at an exercise price of $4.902 per share. Upon the close of the initial public offering on June 29, 2011, warrants to purchase 61,200 shares of Series C convertible preferred stock automatically converted into warrants to purchase 25,000 shares of Class A common stock using a conversion price of 80% of the price per share in the Company’s initial public offering. Warrants issued in connection with amendments to Equipment Loan #1 and the Company’s Business Loan were still outstanding as of March 31, 2014.
	Warrants Issued in Connection with Alberta Lenders/Khosla Term Loan
	Please see Note 7 – Long-Term Debt for a discussion of warrants issued under the Alberta Lenders/Khosla Term Loan prior to our first quarter ended March 31, 2014. On March 18, 2014, the Company issued the Lenders ATM Warrants and Subsequent PIK Warrants to purchase an aggregate of 5,374,877 shares of its Class A common stock for an exercise price of $1.37. The table below shows warrants issued and assumptions used to value the warrants during the three months ended March 31, 2014:
			March 18,
			2014
	Shares issuable			5,374,877
	Stock price		$	0.65
	Exercise price		$	1.37
	Expected volatility			75	%
	Risk-free interest rate			2.01	%
	Dividend yield			-
	Expected term (in years)			6.5
	Fair value		$	0.36
	The warrants may be exercised by payment of the exercise price in cash or on a net issuance basis. All warrants issued pursuant to the Loan and Security Agreement were outstanding as of March 31, 2014. The following warrant activity occurred for the warrants issued in connection with the Loan and Security Agreement and 2014 Note Purchase Agreement:
	Warrant Holder	Type of Warrant	Shares underlying warrants issued as of December 31, 2013	Shares underlying warrants issued during the period ended March 31, 2014	Shares underlying warrants exercised during the period ended March 31, 2014	Shares underlying warrants outstanding at March 31, 2014
	1538731 Alberta Ltd.	ATM	148,355	725,756	-	874,111
		PIK	194,693	560,631	-	755,324
		Other (1)	278,055	-	-	278,055
	1538716 Alberta Ltd.	ATM	264,890	1,295,848	-	1,560,738
		PIK	347,633	1,001,016	-	1,348,649
		Other (1)	496,472	-	-	496,472
	KFT Trust, Vinod Khosla, Trustee	ATM	686,745	1,010,802	-	1,697,547
		PIK	648,400	780,824	-	1,429,224
		Subsequent Drawdown Warrant	2,139,997	-	-	2,139,997
		Other (1)	387,263	-	-	387,263
	(1) Other warrants consist of the initial warrants issued in connection with the Company’s entrance into the Loan and Security Agreement.
	The Company determined that the warrants issuable pursuant to the Loan and Security Agreement and 2014 Note Purchase Agreement should be accounted for as equity based on the rationale that the Company does not have an obligation to transfer assets to the holders of the warrants. This is because the warrants cannot be redeemed and may only be satisfied by the issuance of shares to the warrant holders. This determination is supported by the guidance under Accounting Standards Codification 470-20, Debt Instruments with Detachable Warrants, which states that (i) proceeds from the sale of a debt instrument with stock purchase warrants are allocated based on the relative fair values of the debt instrument without the warrants and of the warrants themselves at the time of issuance and (ii) the portions of the proceeds allocated to the warrants should be accounted for as paid-in capital. Based upon the guidance above, the Initial Warrants, PIK Warrants, Subsequent Drawdown Warrants, ATM Warrants and warrants issued under the 2014 Note Purchase Agreement have been accounted for as equity

Note_12_StockBased_Compensatio

Note 12 - Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	12	Stock-Based Compensation
	Stock-Based Compensation Expense
	Stock-based compensation expense related to options and restricted stock granted was allocated to cost of product revenue, research and development expense, and sales, general and administrative expense as follows:
			Three Months Ended March 31,
			2014			2013
			(Amounts in thousands)
	Cost of product revenue		$	88		$	66
	Research and development			249			627
	Sales, general and administrative			1,812			3,033
	Total stock-based compensation expense		$	2,149		$	3,726
	The amount of the excess tax benefits and the related additional paid in capital have not been set up as net operating losses. The excess tax benefits are currently being carried forward and not yet monetized.
	Amended and Restated 2007 Stock Option/Stock Issuance Plan
	Options to purchase approximately 4.8 million shares of Class A common stock and options to purchase approximately 3.7 million shares of Class B common stock were outstanding under the Company’s Amended and Restated 2007 Stock Option/Stock Issuance Plan (the “2007 Plan”) as of March 31, 2014. Options to purchase approximately 5.5 million shares of Class A common stock and options to purchase approximately 3.9 million shares of Class B common stock were outstanding as of December 31, 2013 under the 2007 Plan.
	Stock option activity for the Company under the 2007 Plan was as follows:
			Shares			Weighted Average Exercise Price			Weighted Average Remaining Life (Years)		Aggregate Intrinsic Value
			(In thousands)								(In thousands)
	Outstanding at December 31, 2013			9,415		$	1.51
	Options Granted			-			-
	Exercised			(175	)		0.09
	Forfeited			(686	)		2.61
	Outstanding at March 31, 2014			8,554		$	1.46			5.7	$	1,826
	Exercisable			7,440		$	1.27			5.7	$	1,778
	The total intrinsic value of options exercised during the three months ended March 31, 2014 and 2013 was $169,000 and $503,000, respectively. There remains $3.0 million in unrecognized stock-based compensation cost that is expected to be recognized over a weighted-average period of 1.4 years.
	The Company has never paid dividends and does not expect to pay dividends. The risk-free interest rate was based on the market yield currently available on United States Treasury securities with maturities approximately equal to the option’s expected term. Expected term represents the period that the Company’s stock-based awards are expected to be outstanding. The simplified method was used to calculate the expected term. Historical share option exercise experience does not provide a reasonable basis upon which to estimate expected term, as the Company is a development stage company and fair market value of shares granted changed from the Company’s historical grants as a result of its initial public offering in June 2011. The expected volatility was based on the historical stock volatilities of several comparable publicly-traded companies over a period equal to the expected terms of the options, as the Company does not have a long trading history to use to estimate the volatility of its own common stock.
	Restricted stock activity for the Company under the 2007 Plan was as follows:
			Number of Shares			Weighted-Average
			(In thousands)			Grant-Date
						Fair Value
	Nonvested—December 31, 2013			186		$	15
	Granted			-			-
	Vested			(40	)	$	15
	Forfeited			(2	)	$	15
	Nonvested—March 31, 2014			144		$	15
	As of March 31, 2014, there was $2.2 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the 2007 Plan that is expected to be recognized over a weighted-average period of 1.6 years.
	Following the effectiveness of the Company’s 2011 Plan (as described below) upon the completion of the Company’s initial public offering in June 2011, no further awards were made under the 2007 Plan.
	2011 Long-Term Incentive Plan
	The Company’s 2011 Long-Term Incentive Plan (the “2011 Plan”) became effective upon the completion of the Company’s initial public offering. The 2011 Plan provides for a maximum of approximately 10.2 million Class A common shares to be granted to eligible employees, consultants, and directors. Under the 2011 Plan, the compensation committee of the Board of Directors may grant awards in the form of stock options, stock appreciation rights, restricted or unrestricted shares of Class A common stock, units denominated in Class A common stock, cash and performance units representing the right to receive Class A common stock upon the attainment of certain performance goals. Any of the above awards may be subject to the attainment of one or more performance goals. Stock option activity for the Company under the 2011 Plan was as follows:
			Shares			Weighted Average Exercise Price			Weighted Average Remaining Life (Years)		Aggregate Intrinsic Value
			(In thousands)								(In thousands)
	Outstanding at December 31, 2013			207		$	8.6
	Options Granted			1,750			0.47
	Exercised			-			-
	Forfeited			-			-
	Outstanding at March 31, 2014			1,957		$	1.33			9.8	$	180
	Exercisable			42		$	14.01			7.4	$	-
	The weighted-average grant-date fair value of options granted under the 2011 Plan during the three months ended March 31, 2014 was $0.32. There is a remaining $1.4 million in unrecognized stock-based compensation cost that is expected to be recognized over a weighted-average period of 4.8 years. The fair value of the options granted under the 2011 Plan was calculated using the following assumptions:
			March 31,
			2014
	Expected volatility			75	%
	Risk-free interest rate			2.13	%
	Dividend yield			-
	Expected term (in years)			6.5
	The Company has never paid dividends and does not expect to pay dividends. The risk-free interest rate was based on the market yield currently available on United States Treasury securities with maturities approximately equal to the option’s expected term. Expected term represents the period that the Company’s stock-based awards are expected to be outstanding. The simplified method was used to calculate the expected term. Historical share option exercise experience does not provide a reasonable basis upon which to estimate expected term, as the Company is a development stage company and fair market value of shares granted changed from the Company’s historical grants as a result of its initial public offering in June 2011. The expected volatility was based on the historical stock volatilities of several comparable publicly-traded companies over a period equal to the expected terms of the options, as the Company does not have a long trading history to use to estimate the volatility of its own common stock.
	Restricted stock activity for the Company under the 2011 Plan, other than awards under the Company’s Annual Incentive Plan for which performance goals have not been met, was as follows:
			Number of Shares			Weighted-Average
			(In thousands)			Grant-Date
						Fair Value
	Nonvested—December 31, 2013			2,091		$	6.14
	Granted			-			-
	Vested			(474	)		(7.00	)
	Forfeited			(40	)		(5.14	)
	Nonvested—March 31, 2014			1,577		$	5.9
	As of March 31, 2014, there was $9.3 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the 2011 Plan that is expected to be recognized over a weighted-average period of 1.8 years.
In March 2013, the compensation committee of the Board of Directors approved the performance metrics for the Company’s 2013 Company Annual Incentive Plan (the “2013 Incentive Plan”). Awards under the 2013 Incentive Plan are denominated in shares of Class A common stock under the Company’s 2011 Plan. If pre-determined performance goals are met, fully vested shares of Class A common stock will be granted to the officers and employees around May 2014, so long as the officer or employee is still an employee at that date. Participants in the 2013 Incentive Plan have the ability to receive up to 200% of the target number of shares originally granted. During the first quarter of 2013, the compensation committee approved target awards for an aggregate of 575,758 shares of Class A common stock for officers of the Company to be administered by the committee and authorized target awards for an aggregate of 327,960 shares of Class A common stock for key employees to be administered by management of the Company under the 2013 Incentive Plan.
2012 Employee Stock Purchase Plan
In June 2012, the Company’s Board of Directors adopted, and the Company’s stockholders subsequently approved, the Company’s 2012 Employee Stock Purchase Plan (the “2012 ESPP”), which commenced on July 1, 2012. The 2012 ESPP provides for a maximum of approximately 3.5 million shares of Class A common stock to be granted to eligible employees of the Company and any of its subsidiaries. Under the 2012 ESPP, the Company allows eligible employees to semi-annually purchase, through payroll deductions, shares of Class A common stock at a discount of up to 15% less than the fair market value at specified dates. Contributions to the 2012 ESPP are limited to 10% of the employee’s pay during each of the two six-month offering periods each year and employees may not purchase more than $25,000 in shares each calendar year.
The awards granted for the purchase period beginning January 1, 2014 under the 2012 ESPP had a fair value of $0.77 per share using the following assumptions: a risk-free interest rate of 0.1%, expected volatility of 112.67%, expected dividend yield of 0%, and an expected term of 0.5 years.

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	3 Months Ended							12 Months Ended
	Mar. 31, 2014							Dec. 31, 2014
Accounting Policies [Abstract]	'							'
Organization [Policy Text Block]	'							'
	Organization
	KiOR, Inc., a Delaware corporation (the “Company”), is a next-generation renewable fuels company based in Houston, Texas. The Company was incorporated and commenced operations in July 2007 as a joint venture between Khosla Ventures, LLC (“Khosla Ventures”), an investment partnership, and BIOeCON B.V.
	The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiary KiOR Columbus, LLC (“KiOR Columbus”), which was formed on October 6, 2010.
Nature Of Business [Policy Text Block]	'							'
	Nature of Business
	The Company has developed a proprietary catalytic process that allows it to produce cellulosic gasoline and diesel from abundant, lignocellulosic biomass. The Company’s cellulosic gasoline and diesel are true hydrocarbon fuels which are similar to their traditional petroleum-based counterparts, and yet the Company estimates they will result in over 60% less life cycle greenhouse gas emissions.
	In 2012, the Company completed construction of its first, initial-scale commercial production facility in Columbus, Mississippi (the “Columbus facility”). This facility is designed to produce up to 13 million gallons of cellulosic diesel and gasoline per year. During the fourth quarter of 2012, the Company commissioned its proprietary Biomass Fluid Catalytic Cracking, or BFCC, operation at the Columbus facility, and produced its first “on specification” cellulosic intermediate oil in limited quantities. During the first quarter of 2013, the Company commissioned the Columbus facility’s hydrotreater and fractionation units, and made the Company’s first cellulosic diesel and gasoline shipments in March 2013 and June 2013, respectively. During 2013, the Company gradually increased continuous production at its Columbus facility but did not reach “steady state” production.
	The Company has encountered several significant difficulties to date at its Columbus facility because of structural bottlenecks, reliability and mechanical issues, and catalyst performance.
	In January 2014, the Company elected to suspend operations at its Columbus facility in order to attempt to complete a series of optimization projects and upgrades that are targeted at improving throughput, yield and overall process efficiency and reliability. In terms of throughput, the Company experienced issues with structural design bottlenecks and reliability that have limited the amount of wood that it can introduce to its BFCC system. These issues have caused the Columbus facility to run significantly below its nameplate capacity for biomass of 500 bone dry tons per day and limited the Company’s ability to produce cellulosic gasoline and diesel. The Company has identified changes to the BFCC, hydrotreater and wood yard that it believes would improve the throughput performance of the Columbus facility. In terms of yield, the Company has identified additional enhancements that it believes would improve the overall yield of transportation fuels from each ton of biomass from the Columbus facility, which has been lower than expected due to a delay in introducing its new generation of catalyst to the facility and mechanical failures impeding desired chemical reactions in the BFCC reactor. In terms of overall process efficiency and reliability, the Company has previously generated products with an unfavorable mix that includes higher percentages of fuel oil and off specification product. Products with higher percentages of fuel oil result in lower product and RIN (as defined below) revenue and higher overall costs. The Company has identified changes that it believes would improve its processes and increase reliability and on-stream percentage throughout its Columbus facility. The Company also believes it can reduce operating costs by, among other things, decreasing natural gas consumption by the facility. The implementation of any such optimization projects is subject to the Company’s ability to raise additional working capital.
	While the Company has completed some of these projects and upgrades, it has elected to suspend all optimization work and bring the Columbus facility to a safe, idle state, which the Company believes will enable it to restart the facility upon the achievement of additional research and development milestones and if it is able to raise addiitonal working capital.
Development Stage Enterprise [Policy Text Block]	'							'
	Development Stage Enterprise
	Since inception, the Company has generated significant losses. As of March 31, 2014, the Company had an accumulated deficit of $604.9 million, and it expects to continue to incur operating losses until it has constructed its first standard commercial production facility and it is operational. The Company expects to incur additional costs and expenses related to research and development, optimization projects and upgrades at its Columbus facility, and other overhead and operating costs. The Company expects to have little to no revenue in 2014, unless and until it restarts the Columbus facility. The Company will need to raise additional funds to continue its operations, restart its Columbus facility, build its next commercial production facility and subsequent facilities, continue the development of its technology and products, commercialize any products resulting from its research and development efforts, and satisfy its debt service obligations.
Liquidity Disclosure [Policy Text Block]	'							'
								Going Concern and Liquidity
								The Company must raise capital in one or more external equity and/or debt financings to fund the cash requirements of its ongoing operations for the next twelve months from March 31, 2014. In addition, it must raise substantial additional capital to fund its next commercial production facility. On March 31, 2014, the Company entered into a Senior Secured Promissory Note and Warrant Purchase Agreement (the “2014 Note Purchase Agreement”) with KFT Trust, Vinod Khosla, Trustee, (“Khosla”) and Khosla in its capacity as agent for Khosla. The 2014 Note Purchase Agreement contemplates multiple tranches of financing of up to $25 million. However, even with this new source of financing, the lack of any additional committed near term sources of financing raises substantial doubt about the Company’s ability to continue as a going concern. Commercialization of the Company’s technology will also require significant capital and other expenditures, including costs related to: (i) ongoing efforts to achieve steady-state operations, (ii) a series of optimization projects and upgrades at its Columbus facility and (iii) the construction of its next commercial production facility, all of which will also require it to raise significant amounts of additional capital.
								As discussed in Note 7 – Long-Term Debt, the first tranche of the 2014 Note Purchase Agreement resulted in borrowings of $5 million. Additional borrowings under the 2014 Notes Purchase Agreement are subject to the achievement of performance milestones. The performance milestones require (i) the Company to demonstrate that it has made material progress in implementing its business, financial, operational and technology plans, (ii) the Company to demonstrate that there is a likelihood of eventual commercial success of the Company’s business plan when considered in light of both internal and external factors, including without limitation, market conditions, costs, competitive developments and an ability to secure financing for the Company and (iii) Khosla to believe that the purchase of additional notes is appropriate for the Company to continue its operations.
								As of March 31, 2014, the Company has suspended all optimization projects in order to bring the Columbus facility to a safe, idle state and has not demonstrated any additional research and development progress or any demonstrable progress towards achieving its financing performance milestones. The Company does not believe it can restart the Columbus facility on an economically viable basis at this time and therefore cannot be certain as to whether it will be able to successfully secure additional financing or the ultimate timing of such additional financing. In addition, even if the Company meets the first two performance milestones described above, Khosla must determine, in its sole discretion, that the purchase of additional notes is appropriate for the Company to continue its operations before the Company can make additional borrowings under the 2014 Note Purchase Agreement.
								If the Company successfully achieves its performance milestones that allow it to receive the full amount under the 2014 Note Purchase Agreement in the near term, it expects to be able to fund its operations and meet its obligations until approximately August 31, 2014, but will need to raise additional funds to continue its operations beyond that date. If the Company is not successful in achieving its performance milestones or if it is otherwise unable to raise additional funds beyond approximately August 31, 2014, the Company will not have adequate liquidity to fund its operations and meet its obligations (including its debt payment obligations), in which case it will likely be forced to voluntarily seek protection under the U.S. Bankruptcy Code (or an involuntary petition for bankruptcy may be filed against the Company). Even if the Company is able to achieve such performance milestones or secure any additional financing, any investment may require significant changes to the Company’s current business structure, including, but not limited to: a change in the focus of its business; suspension of some or all of its operations; delaying or scaling back its business plan, including its research and development programs; reductions in headcount, overhead and other operating costs; and the longer-term or permanent closing of its Columbus facility, each of which would have a material adverse effect on its business, prospects and financial condition.
								On October 18, 2013, the Company entered into a Senior Secured Convertible Promissory Note Purchase Agreement that was amended on October 20, 2013 and March 31, 2014 (the “October 2013 Note Purchase Agreement”) with Khosla Ventures III, LP (“KV III”), Khosla and VNK Management, LLC (“VNK” and, collectively with Khosla and KV III, the “Purchasers”) and KV III in its capacity as agent for the Purchasers. Also, on October 18, 2013, the Company entered into a Class A Common Stock Purchase Agreement (the “Stock Purchase Agreement”) with Gates Ventures, LLC (“Gates”) to purchase shares of the Company’s Class A Common Stock (such shares of Class A Common Stock, the “Gates Shares”).
								The Company’s private placements with Khosla and Gates involve two tranches. The commitment by Gates to close a second tranche will terminate on June 30, 2014 and the Company does not expect to be able to satisfy the closing conditions for that tranche in time to meet the deadline. Any funds from the second tranche of the Khosla private placement is unlikely to come in the near term because in order to close the second tranche the Company must, among other things, raise $400 million from one or more offerings, private placements or other financing transactions.
								As of March 31, 2014, the Company had cash and cash equivalents of $4.2 million. As of April 30, 2014 the Company had cash and cash equivalents of $3.3 million.
								The Company’s material liquidity needs over the next twelve months from April 30, 2014 consist of the following:
									•	Funding the Company’s research and development and overhead costs, which it expects to be approximately $35 million. The Company does not expect to generate sufficient revenue from the sale of its cellulosic fuel to allow it to fund these costs from internally generated cash from operations until the Company constructs its first standard commercial production facility and it is operational.
									•	Funding the Company’s debt service costs, which it expects to be approximately $3.8 million, assuming it continues to elect to pay-in-kind interest due under the Loan and Security Agreement (as defined below).
									•	Funding the current operating costs to maintain the Columbus facility in near ready startup mode, which the Company expects to be approximately $16 million. The Company expects to have a little to no revenue from its Columbus facility over the next 12 months, unless and until it restarts the facility.
								The Company expects any financing for the next commercial production facility will be contingent upon, among other things, successful fuel production at its existing Columbus facility, entering into satisfactory feedstock supply and offtake agreements for the next commercial production facility, receipt of necessary governmental and regulatory approvals and permits, there being no material adverse effect on the Company or its industry (including relevant commodity markets) and general market conditions. Longer term, the Company also anticipates material liquidity needs for the construction of additional commercial scale production facilities.
								The Company’s ability to obtain additional external debt financing is limited by the amount and terms of its existing borrowing arrangements and the fact that all of its assets have been pledged as collateral for these existing arrangements. In addition, any new financing will require the consent of our existing debt holders and may require the restructuring of our existing debt. A failure to make necessary timely payments under its existing debt instruments and to comply with the covenants under such debt instruments could result in an event of default which would have a material adverse effect on its business, prospects and financial condition.
								For example, the Company’s loan agreement with the Mississippi Development Authority requires semiannual payments on June 30 and December 31 each year. The Mississippi Development Authority (the “MDA”) requires certain investments in property, plant and equipment and certain expenditures for wages and direct local purchases, both of which the Company does not expect to satisfy by the requisite deadlines if the Columbus facility is not operating during 2014. If an event of default occurs and is continuing, the Mississippi Development Authority may accelerate amounts due under the loan agreement, which is secured by certain equipment, land and buildings of KiOR Columbus.
								Furthermore, there are cross-default provisions in certain of the Company’s existing debt instruments such that an event of default under one agreement or instrument could result in an event of default under another. If an event of default resulted in the acceleration of all of its payment obligations under its debt instruments as of April 30, 2014, it would be required to pay its lenders an aggregate of $287.4 million. In the event of an acceleration of amounts due under its debt instruments as a result of an event of default, the Company will not have sufficient funds and does not expect to be able to arrange for additional financing to repay its indebtedness or to make any accelerated payments, and the lenders could seek to enforce their security interests in the collateral securing such indebtedness. The Company’s failure to obtain additional external financing to fund its cash requirements would further cause noncompliance with its existing debt covenants which would have a material adverse effect on its business, prospects and financial condition. In addition, any new financing will require the consent of the Company’s existing debt holders and may require the restructuring of the Company’s existing debt.
Basis of Accounting, Policy [Policy Text Block]	'							'
	Basis of Presentation
	The accompanying interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to these rules and regulations. In the opinion of the Company, these financial statements contain all adjustments necessary to present fairly its financial position, results of operations, and changes in cash flows for the periods presented. All such adjustments represent normal recurring items, except as noted herein. These condensed consolidated financial statements are unaudited and should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the SEC on March 17, 2014. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. The unaudited interim condensed consolidated financial statements include the accounts of the Company and its consolidated subsidiary.
Use of Estimates, Policy [Policy Text Block]	'							'
	Use of Estimates
	The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Accordingly, actual results could differ from these estimates.
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	'							'
	Restricted Cash—Compensating Balances
	The Company had restricted cash of $200,000 at March 31, 2014. The restricted cash relates to credit cards issued to the Company. Under the terms of this arrangement, the Company is required to maintain with the issuing bank a compensating balance, restricted as to use, of $200,000. Restricted cash is presented as a current asset as it relates to outstanding credit card balances that are presented as a current liability.
Common Stock Warrants [Policy Text Block]	'							'
	Common Stock Warrants
	The Company estimates the fair value of its common stock warrants using the Black-Scholes option-pricing model. The risk-free interest rate was based on the market yield currently available on United States Treasury securities with maturities approximately equal to the warrant’s expected term. Expected term represents the period that the Company’s common stock warrants are expected to be outstanding. In the case of the common stock warrants issued under the Loan and Security Agreement and 2014 Note Purchase Agreement, the warrants generally have a term of seven years. The expected volatility was based on the historical stock volatilities of several comparable publicly-traded companies over a period equal to the expected terms of the warrants, as the Company does not have a long trading history to use to estimate the volatility of its own common stock. The Company’s expected dividend yield was assumed to be zero as it has not paid, and does not anticipate paying, cash dividends on its shares of common stock.
	The Company will continue to use judgment in evaluating the expected volatility, expected term, and dividend rate related to its common stock warrants on a prospective basis and incorporating these factors into its warrant-valuation model.
Earnings Per Share, Policy [Policy Text Block]	'							'
	Net Loss per Share of Common Stock
	Basic net loss per share of common stock is computed by dividing the Company’s net loss attributable to its stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share of common stock is computed by giving effect to all potentially dilutive securities, including stock options, warrants and convertible preferred stock. Basic and diluted net loss per share of common stock attributable to the Company’s stockholders was the same for all periods presented on the Consolidated Statements of Operations and Comprehensive Income, as the inclusion of all potentially dilutive securities outstanding would have been antidilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share are the same for each period presented.
	The following table presents the calculation of historical basic and diluted net loss per share of common stock attributable to the Company’s common stockholders:
		Three Months Ended March 31,
		2014			2013
	Net loss per share:
	Numerator:
	Net loss attributable to Class A common stockholders – basic and diluted	$	(16,455	)	$	(15,646	)
	Net loss attributable to Class B common stockholders – basic and diluted		(14,139	)		(15,689	)
	Net loss attributable to Class A common stockholders and
	Class B common stock holders – basic and diluted	$	(30,594	)	$	(31,335	)
	Denominator:
	Weighted-average Class A common shares used in computing net loss per share of Class A common stock — basic and diluted		59,365			52,716
	Weighted-average Class B common shares used in computingnet loss per share of Class B common stock — basic and diluted		51,013			52,856
	Weighted-average Class A common stock and Class B common stock – basic and diluted		110,378			105,572
	Net loss per share of Class A common stock — basic and diluted	$	(0.28	)	$	(0.30	)
	Net loss per share of Class B common stock — basic and diluted	$	(0.28	)	$	(0.30	)
	The following outstanding shares on a weighted-average basis of potentially dilutive securities were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been antidilutive:
		Three Months Ended March 31,
		2014			2013
		(Amounts in thousands)
	Common stock warrants		6,471			1,695
	Restricted stock awards		2,881			2,525
	Stock option awards		9,465			10,800
	Senior secured convertible promissory note (if converted)		33,033			-
	Total		51,850			15,020
New Accounting Pronouncements, Policy [Policy Text Block]	'							'
	Recent Accounting Pronouncements
	In April 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2014-08 (ASU 2014-08) “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity." ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. It is effective for annual periods beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. The Company is currently in the process of evaluating the impact of the adoption on our consolidated financial statements.

Note_2_Summary_of_Significant_1

Note 2 - Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three Months Ended March 31,
		2014			2013
	Net loss per share:
	Numerator:
	Net loss attributable to Class A common stockholders – basic and diluted	$	(16,455	)	$	(15,646	)
	Net loss attributable to Class B common stockholders – basic and diluted		(14,139	)		(15,689	)
	Net loss attributable to Class A common stockholders and
	Class B common stock holders – basic and diluted	$	(30,594	)	$	(31,335	)
	Denominator:
	Weighted-average Class A common shares used in computing net loss per share of Class A common stock — basic and diluted		59,365			52,716
	Weighted-average Class B common shares used in computingnet loss per share of Class B common stock — basic and diluted		51,013			52,856
	Weighted-average Class A common stock and Class B common stock – basic and diluted		110,378			105,572
	Net loss per share of Class A common stock — basic and diluted	$	(0.28	)	$	(0.30	)
	Net loss per share of Class B common stock — basic and diluted	$	(0.28	)	$	(0.30	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'
		Three Months Ended March 31,
		2014			2013
		(Amounts in thousands)
	Common stock warrants		6,471			1,695
	Restricted stock awards		2,881			2,525
	Stock option awards		9,465			10,800
	Senior secured convertible promissory note (if converted)		33,033			-
	Total		51,850			15,020

Note_3_Fair_Value_of_Financial1

Note 3 - Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	'
		31-Mar-14
		Level 1		Level 2		Level 3		Total
	Financial Assets
	Money market funds		3,001		-		-		3,001
	Total financial assets	$	3,001	$	-	$	-	$	3,001
		31-Dec-13
		Level 1		Level 2		Level 3		Total
	Financial Assets
	Money market funds		23,001		-		-		23,001
	Total financial assets	$	23,001	$	-	$	-	$	23,001
Fair Value, by Balance Sheet Grouping [Table Text Block]	'
		31-Mar-14				31-Dec-13
	Issuance	Carrying Value		Estimated Fair		Carrying Value
				Value				Estimated Fair
								Value
		(Amounts in thousands)				(Amounts in thousands)
	October 2013 Note Purchase Agreement		88,697		52,505		88,408		51,124
	MDA loan		43,575		46,303		42,981		44,269

Note_4_Balance_Sheet_Component1

Note 4 - Balance Sheet Components (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block Supplement [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
		March 31,		December 31,
		2014		2013
		(Amounts in thousands)
	Raw materials	$	1,889	$	2,040
	Work in process		17		72
	Finished goods		152		441
	Stores, supplies, and other		1,011		973
	Total Inventories	$	3,069	$	3,526
Schedule of Accrued Liabilities [Table Text Block]	'
		March 31,		December 31,
		2014		2013
		(Amounts in thousands)
	Accrued interest expense	$	1,405	$	1,351
	Accrued vacation		1,065		976
	Accrued property taxes		470		1,587
	Accrued Mississippi franchise taxes		1,727		2,122
	Accrued utilities		192		949
	Accrued legal fees		1,062		134
	Other		2,610		1,414
	Total Accrued liabilities	$	8,531	$	8,533

Note_5_Property_Plant_and_Equi1

Note 5 - Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
		March 31,			December 31,
		2014			2013
		(Amounts in thousands)
	Property, Plant and Equipment:
	Construction in progress	$	12,999		$	12,973
	Lab and testing equipment		5,470			5,470
	Leasehold improvements		5,139			5,139
	Manufacturing machinery and equipment		238,888			238,888
	Computer equipment and software		1,355			1,355
	Furniture and fixtures		134			134
	Land		550			550
	Buildings		1,666			1,666
	Impairment Loss		(196,269	)		(196,269	)
	Total property, plant and equipment		69,932			69,906
	Less: accumulated depreciation		(18,378	)		(17,606	)
	Net property, plant and equipment	$	51,554		$	52,300

Note_6_Intangible_Assets_Table

Note 6 - Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block [Abstract]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
		March 31,			December 31,
		2014			2013
		(Amounts in thousands)
	Intangible Assets:
	Purchased biomass conversion technology	$	2,599		$	2,599
	Accumulated amortization		(1,097	)		(1,054	)
	Purchased biomass conversion technology, net		1,502			1,545
	Technology licenses		700			700
	Accumulated amortization		(130	)		(121	)
	Technology licenses, net		570			579
	Intangible assets, net	$	2,072		$	2,124

Note_7_LongTerm_Debt_Tables

Note 7 - Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure Text Block [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
		March 31,			December 31,
		2014			2013
		(Amounts in thousands)
	Long-Term Debt:
	Mississippi Development Authority Loan	$	69,375		$	69,375
	Loan and Security Agreement		109,142			104,447
	October 2013 Note Purchase Agreement		95,697			95,697
	Less: unamortized debt discounts		(41,255	)		(41,571	)
	Long-term debt, net of discount		232,959			227,948
	Less: current portion		(3,750	)		(3,750	)
	Long-term debt, less current portion, net of discount	$	229,209		$	224,198

Note_11_Stockholders_Equity_Ta

Note 11 - Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2014
Stockholders' Equity Note [Abstract]	'
Schedule of Warrants Issued, Valuation Assumptions [Table Text Block]	'
			March 18,
			2014
	Shares issuable			5,374,877
	Stock price		$	0.65
	Exercise price		$	1.37
	Expected volatility			75	%
	Risk-free interest rate			2.01	%
	Dividend yield			-
	Expected term (in years)			6.5
	Fair value		$	0.36
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]	'
	Warrant Holder	Type of Warrant	Shares underlying warrants issued as of December 31, 2013	Shares underlying warrants issued during the period ended March 31, 2014	Shares underlying warrants exercised during the period ended March 31, 2014	Shares underlying warrants outstanding at March 31, 2014
	1538731 Alberta Ltd.	ATM	148,355	725,756	-	874,111
		PIK	194,693	560,631	-	755,324
		Other (1)	278,055	-	-	278,055
	1538716 Alberta Ltd.	ATM	264,890	1,295,848	-	1,560,738
		PIK	347,633	1,001,016	-	1,348,649
		Other (1)	496,472	-	-	496,472
	KFT Trust, Vinod Khosla, Trustee	ATM	686,745	1,010,802	-	1,697,547
		PIK	648,400	780,824	-	1,429,224
		Subsequent Drawdown Warrant	2,139,997	-	-	2,139,997
		Other (1)	387,263	-	-	387,263

Note_12_StockBased_Compensatio1

Note 12 - Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	'
		Three Months Ended March 31,
		2014			2013
		(Amounts in thousands)
	Cost of product revenue	$	88		$	66
	Research and development		249			627
	Sales, general and administrative		1,812			3,033
	Total stock-based compensation expense	$	2,149		$	3,726
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
		Shares			Weighted Average Exercise Price			Weighted Average Remaining Life (Years)		Aggregate Intrinsic Value
		(In thousands)								(In thousands)
	Outstanding at December 31, 2013		9,415		$	1.51
	Options Granted		-			-
	Exercised		(175	)		0.09
	Forfeited		(686	)		2.61
	Outstanding at March 31, 2014		8,554		$	1.46			5.7	$	1,826
	Exercisable		7,440		$	1.27			5.7	$	1,778
		Shares			Weighted Average Exercise Price			Weighted Average Remaining Life (Years)		Aggregate Intrinsic Value
		(In thousands)								(In thousands)
	Outstanding at December 31, 2013		207		$	8.6
	Options Granted		1,750			0.47
	Exercised		-			-
	Forfeited		-			-
	Outstanding at March 31, 2014		1,957		$	1.33			9.8	$	180
	Exercisable		42		$	14.01			7.4	$	-
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	'
		Number of Shares			Weighted-Average
		(In thousands)			Grant-Date
					Fair Value
	Nonvested—December 31, 2013		186		$	15
	Granted		-			-
	Vested		(40	)	$	15
	Forfeited		(2	)	$	15
	Nonvested—March 31, 2014		144		$	15
		Number of Shares			Weighted-Average
		(In thousands)			Grant-Date
					Fair Value
	Nonvested—December 31, 2013		2,091		$	6.14
	Granted		-			-
	Vested		(474	)		(7.00	)
	Forfeited		(40	)		(5.14	)
	Nonvested—March 31, 2014		1,577		$	5.9
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
		March 31,
		2014
	Expected volatility		75	%
	Risk-free interest rate		2.13	%
	Dividend yield		-
	Expected term (in years)		6.5

Note_1_Organization_and_Operat1

Note 1 - Organization and Operations of the Company (Details) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

80 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Oct. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Dec. 31, 2013

Jul. 22, 2007

Apr. 30, 2014

Dec. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2014

gal

Subsequent Event [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Note 1 - Organization and Operations of the Company (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Petroleum Greenhouse Gas Emissions Over Cellulosic Gasoline

'

60.00%

'

'

60.00%

'

'

'

'

'

'

'

'

Expected Production of Gallons of Gasoline from Natural and Waste Cellulosic (in US Gallons)

'

'

'

13,000,000

'

'

'

'

'

'

'

'

'

Development Stage Enterprise, Deficit Accumulated During Development Stage

'

$604,859,000

'

'

$604,859,000

$574,265,000

'

'

'

'

'

'

'

Revenues

'

102,000

71,000

'

2,014,000

'

'

'

0

'

'

'

'

Maximum Amount to be Received as Part of Commitment Agreement

'

'

'

'

'

'

'

'

'

'

'

25,000,000

25,000,000

Line of Credit Facility, Amount Outstanding

'

'

'

'

'

'

'

'

'

'

'

5,000,000

5,000,000

Financing Requirement Upon Which Purchase Commitments are Contingent

400,000,000

'

'

'

'

'

'

'

'

'

400,000,000

'

'

Cash and Cash Equivalents, at Carrying Value

'

4,226,000

11,111,000

40,887,000

4,226,000

25,117,000

0

3,300,000

'

'

'

'

'

Development Stage Enterprise Liquidity Needs Funding Overhead Costs

'

'

'

'

'

'

'

'

'

35,000,000

'

'

'

Development Stage Enterprise Liquidity Needs Funding Debt Service Costs

'

'

'

'

'

'

'

'

'

3,800,000

'

'

'

Development Stage Enterprise Liquidity Needs Funding Operating Costs

'

'

'

'

'

'

'

'

'

16,000,000

'

'

'

Accelerated Debt Payment Obligations in Event of Default

'

'

'

'

'

'

'

$287,400,000

'

'

'

'

'

Note_2_Summary_of_Significant_2

Note 2 - Summary of Significant Accounting Policies (Details) (USD $)	1 Months Ended	3 Months Ended
	Mar. 18, 2014	Mar. 31, 2014
Accounting Policies [Abstract]	'	'
Restricted Cash and Cash Equivalents	'	$200,000
Compensating Balance, Amount	'	$200,000
Fair Value Assumptions, Expected Term	'6 years 6 months	'7 years
Fair Value Assumptions, Expected Dividend Rate	'	0.00%

Note_2_Summary_of_Significant_3

Note 2 - Summary of Significant Accounting Policies (Details) - Calculation of Historical Basic and Diluted Net Loss Per Share (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net loss per share:	'	'
Net loss attributable to common stockholders	($30,594)	($31,335)
Weighted-average common shares used in computing net loss per share of common stock	110,378	105,572
Common Class A [Member]	'	'
Net loss per share:	'	'
Net loss attributable to common stockholders	-16,455	-15,646
Weighted-average common shares used in computing net loss per share of common stock	59,365,000	52,716,000
Net loss per share of common stock b basic and diluted	($0.28)	($0.30)
Common Class B [Member]	'	'
Net loss per share:	'	'
Net loss attributable to common stockholders	($14,139)	($15,689)
Weighted-average common shares used in computing net loss per share of common stock	51,013,000	52,856,000
Net loss per share of common stock b basic and diluted	($0.28)	($0.30)
Common Class A and B [Member]	'	'
Net loss per share:	'	'
Weighted-average common shares used in computing net loss per share of common stock	110,378,000	105,572,000

Note_2_Summary_of_Significant_4

Note 2 - Summary of Significant Accounting Policies (Details) - Outstanding Shares on Weighted-Average Basis of Potentially Dilutive Securities	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share	51,850	15,020
Warrant [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share	6,471	1,695
Restricted Stock [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share	2,881	2,525
Equity Option [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share	9,465	10,800
Senior Secured Convertible Promissory Note [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Antidilutive securities excluded from computation of earnings per share	33,033	'

Note_3_Fair_Value_of_Financial2

Note 3 - Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'	'	'
Assets, Fair Value Adjustment	$0	'	$52,300,000
Liabilities, Fair Value Adjustment	0	'	'
Impairment of Long-Lived Assets Held-for-use	$196,269,000	$196,269,000	$196,300,000

Note_3_Fair_Value_of_Financial3

Note 3 - Fair Value of Financial Instruments (Details) - Financial Instruments Measured at Fair Value on Recurring Basis (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial Assets	'	'
Total financial assets	$3,001	$23,001
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Financial Assets	'	'
Money market funds	3,001	23,001
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Financial Assets	'	'
Total financial assets	3,001	23,001
Money Market Funds [Member]	'	'
Financial Assets	'	'
Money market funds	$3,001	$23,001

Note_3_Fair_Value_of_Financial4

Note 3 - Fair Value of Financial Instruments (Details) - Carrying Value of Senior Secured Convertible Promissory Note (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Carrying Value	$232,959	$227,948
October 2013 Note Purchase Agreement [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Carrying Value	88,697	88,408
Estimated Fair Value	52,505	51,124
MDA Loan [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Carrying Value	43,575	42,981
Estimated Fair Value	$46,303	$44,269

Note_4_Balance_Sheet_Component2

Note 4 - Balance Sheet Components (Details) - Inventory (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Inventory [Abstract]	'	'
Raw materials	$1,889	$2,040
Work in process	17	72
Finished goods	152	441
Stores, supplies, and other	1,011	973
Total Inventories	$3,069	$3,526

Note_4_Balance_Sheet_Component3

Note 4 - Balance Sheet Components (Details) - Other Accrued Liabilities (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Note 4 - Balance Sheet Components (Details) - Other Accrued Liabilities [Line Items]	'	'
Accrued interest expense	$1,405	$1,351
Accrued vacation	1,065	976
Accrued utilities	192	949
Accrued legal fees	1,062	134
Other	2,610	1,414
Total Accrued liabilities	8,531	8,533
Property Taxes [Member]	'	'
Note 4 - Balance Sheet Components (Details) - Other Accrued Liabilities [Line Items]	'	'
Accrued taxes	470	1,587
Mississippi Franchise Taxes [Member]	'	'
Note 4 - Balance Sheet Components (Details) - Other Accrued Liabilities [Line Items]	'	'
Accrued taxes	$1,727	$2,122

Note_5_Property_Plant_and_Equi2

Note 5 - Property, Plant and Equipment (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Note 5 - Property, Plant and Equipment (Details) [Line Items]	'	'
Interest Costs Capitalized	$0	'
Construction in Progress [Member]	'	'
Note 5 - Property, Plant and Equipment (Details) [Line Items]	'	'
Depreciation	$800,000	$1,500,000

Note_5_Property_Plant_and_Equi3

Note 5 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Property, Plant and Equipment:	'	'	'
Construction in progress	$12,999	$12,973	'
Leasehold improvements	5,139	5,139	'
Manufacturing machinery and equipment	238,888	238,888	'
Computer equipment and software	1,355	1,355	'
Furniture and fixtures	134	134	'
Land	550	550	'
Buildings	1,666	1,666	'
Impairment Loss	-196,269	-196,269	-196,300
Total property, plant and equipment	69,932	69,906	'
Less: accumulated depreciation	-18,378	-17,606	'
Net property, plant and equipment	51,554	52,300	52,300
Lab and Testing Equipment [Member]	'	'	'
Property, Plant and Equipment:	'	'	'
Lab and testing equipment	$5,470	$5,470	'

Note_6_Intangible_Assets_Detai

Note 6 - Intangible Assets (Details) - Intangible Assets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Intangible Assets:	'	'
Purchased biomass conversion technology	$2,599	$2,599
Intangible assets, net	2,072	2,124
Technology licenses	700	700
Licensing Agreements [Member]	'	'
Intangible Assets:	'	'
Accumulated amortization	-1,097	-1,054
Intangible assets, net	570	579
Unpatented Technology [Member]	'	'
Intangible Assets:	'	'
Accumulated amortization	-130	-121
Intangible assets, net	$1,502	$1,545

Note_7_LongTerm_Debt_Details

Note 7 - Long-Term Debt (Details) (USD $)

1 Months Ended

3 Months Ended

80 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

1 Months Ended

Oct. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 18, 2014

Dec. 31, 2013

Apr. 03, 2014

Oct. 31, 2013

Oct. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Jan. 26, 2012

Dec. 31, 2012

Mar. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2014

Jan. 26, 2012

Mar. 31, 2014

Mar. 31, 2014

Oct. 31, 2013

Jan. 26, 2012

Dec. 31, 2012

Jan. 26, 2012

Mar. 31, 2014

Mar. 31, 2013

Oct. 31, 2013

Oct. 31, 2013

Mar. 31, 2014

Mar. 18, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2012

Mar. 31, 2012

Mar. 31, 2014

Feb. 28, 2013

Dec. 31, 2013

Mar. 31, 2014

Oct. 31, 2013

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2011

Mar. 31, 2014

Oct. 31, 2013

Subsequent Event [Member]

Exchanged for a Like Amount of Cash [Member]

Exchanged for a Like Amount of Existing Indebtedness Outstanding [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

Subsequent Drawdown [Member]

Subsequent Drawdown [Member]

Subsequent Drawdown [Member]

Subsequent Drawdown [Member]

PIK Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

Subsequent PIK [Member]

Subsequent PIK [Member]

Subsequent PIK [Member]

Subsequent PIK [Member]

Subsequent PIK [Member]

Subsequent PIK, Subsequent Drawdown, and ATM Warrants [Member]

Khosla [Member]

Khosla [Member]

KV III, Khosla, and VNK [Member]

KV III, Khosla, and VNK [Member]

Alberta Lenders [Member]

Alberta Lenders/Khosla Term Loan [Member]

Alberta Lenders/Khosla Term Loan [Member]

Interest Expense [Member]

Interest Expense [Member]

Common Class A [Member]

Common Class A [Member]

Common Class A [Member]

Common Class A [Member]

Alberta Lenders [Member]

2014 Note Purchase Agreement [Member]

Khosla [Member]

Alberta Lenders [Member]

Alberta Lenders/Khosla Term Loan [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Alberta Lenders/Khosla Term Loan [Member]

Mississippi Development Authority Loan [Member]

Mississippi Development Authority Loan [Member]

2014 Note Purchase Agreement [Member]

October 2013 Note Purchase Agreement [Member]

Khosla [Member]

KV III, Khosla, and VNK [Member]

KV III, Khosla, and VNK [Member]

Khosla [Member]

Khosla [Member]

Alberta Lenders/Khosla Term Loan [Member]

Minimum [Member]

Maximum [Member]

Khosla [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Khosla [Member]

Minimum [Member]

Maximum [Member]

2014 Note Purchase Agreement [Member]

October 2013 Note Purchase Agreement [Member]

KV III and VNK [Member]

Khosla [Member]

2014 Note Purchase Agreement [Member]

Loan and Security Agreement [Member]

Khosla [Member]

2014 Note Purchase Agreement [Member]

October 2013 Note Purchase Agreement [Member]

October 2013 Note Purchase Agreement [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Khosla [Member]

Senior Secured Promissory Note [Member]

Senior Secured Mandatorily Convertible Notes [Member]

October 2013 Note Purchase Agreement [Member]

Senior Secured Promissory Note [Member]

Senior Secured Mandatorily Convertible Notes [Member]

Senior Secured Mandatorily Convertible Notes [Member]

Note 7 - Long-Term Debt (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument Covenant, Maximum Gross Proceeds From Debt Offering

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible Notes Payable

'

'

'

'

'

'

5,000,000

42,500,000

53,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Maximum Gross Proceeds From Debt Offering Remaining

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

undefined

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.75%

'

'

10.00%

'

Calculation of Additional Shares Grant to Lenders Under Warrant, Denominator

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.573

'

Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)

'

'

'

'

5,374,877

'

'

'

'

'

[1]

'

1,161,790

480,123

619,867

'

'

2,139,997

'

'

'

334,862

'

'

377,238

2,342,471

478,626

'

'

'

'

'

'

'

'

'

'

'

'

'

'

872,600

3,032,406

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share)

'

'

'

'

$1.37

'

'

'

'

'

'

$11.62

'

$5.71

$3.10

$5.06

'

'

$3.10

$5.06

'

$11.62

$13.15

'

$1.37

$5.71

$3.10

$5.06

'

'

'

'

'

'

'

'

'

'

'

'

$0.57

$1.37

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expiry Date Of Initial Warrant

'

'

'

'

'

'

'

'

'

'

'7 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'7 years

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.00%

'

'

'

16.00%

'

'

'

0.00%

'

'

'

'

'

Purchase Agreement, Maximum Value of Shares Purchased

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Potential Extinguishment of Debt, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

Proceeds from Issuance of Common Stock

'

'

'

'

'

'

'

42,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Conversion Price (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$2.90

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Premium Over Average Daily Volume Weighted Average Price of Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

'

95,700,000

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

'

'

'

'

'

Debt Instrument, Maturity Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Feb-16

'

'

'

'

1-Feb-16

1-Feb-20

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Discount

'

41,255,000

'

41,255,000

'

41,571,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,500,000

'

'

'

'

'

32,200,000

'

'

Long-term Debt, Gross

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

45,700,000

'

'

'

'

'

'

'

'

Minimum Aggregate Net Cash Proceeds from Offerings, Private Placements or Other Financing Transactions

400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Put Option, Maximum Value of Common Stock Shares if Exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Put Option, Minimum Aggregate Proceeds from Sales of Additional Notes or Equity Before Put Option Exercise Triggering Termination

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Put Option, Maximum Aggregate Proceeds from Sales of Additional Notes or Equity Triggering New Purchase Commitment

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Put Option, Amount from which the Raised Amount is Subtracted to Calculate Number of Shares Purchsed Under New Commitment

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum Percentage of Common Stock Issued or Issuable Upon Converstion of Purchased Notes that Must Be Beneficially Owned by Purchaser to Exercise Early Purchase Option

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

Debt Covenants, Maximum Capital Expenditures Prior to Receipt of the Project Financing Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

Minimum Percentage of Shares Beneficially Owned by Purchaser Triggering Right of First Offer

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

Related Party Transaction, Due from (to) Related Party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-75,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related Party Transaction, Expenses from Transactions with Related Party

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

750,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Facility, Increased Maximum Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Credit Facility Agreement Financing Costs Payable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

'

'

'

'

'

'

'

'

'

'

'

Threshold Project Financing Event Triggering Conversion of Obligations to High Yield Debt and Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

400,000,000

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Effective Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rate Of Facility Charges Paid To Lenders

'

4.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease In Premium Rate

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional Rate Of Aggregate Amount Of All Interest Paid

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of Financing Costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Calculation Of Additional Shares Grant To Lenders Under Warrant Denominator Percentage Of Market Price Per Share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

Warrant Expiration Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3-Aug-20

'

'

3-Aug-20

'

'

'

3-Aug-20

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3-Aug-20

'

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)

'

'

'

'

$1.37

'

'

'

'

'

'

$11.62

'

$5.71

$3.10

$5.06

'

'

$3.10

$5.06

'

$11.62

$13.15

'

$1.37

$5.71

$3.10

$5.06

'

'

'

'

'

'

'

'

'

'

'

'

$0.57

$1.37

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares Of Common Stock Underlying Warrant As Percentage Of Subsequent Loan Advances Divided By Average Market Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares Of Common Stock Underlying Warrant As Percentage Of Interest Paid In Kind Divided By Average Market Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loan Balance Increase from Paid-in-kind Interest

'

28,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Liquidated Damages Payable, Maximum as a Percentage of Aggregate Share Price Paid

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Percentage Of Outstanding Common Stock Obligated Upon Issuance Of Warrants

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

19.99%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

75,000,000

'

'

'

Maximum Period For Repayment Of Loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'20 years

'

'

'

Committed Capital Outlay Under Loan Agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

'

'

'

Committed Wages and Direct Local Purchases Under Loan Agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

85,000,000

'

'

'

Proceeds from Borrowings

'

'

'

75,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

75,000,000

'

'

Loans Payable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

69,400,000

'

'

'

Amortization of Debt Discount (Premium)

'

'

1,586,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,400,000

'

'

'

Interest Costs Incurred

'

7,100,000

6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Costs Capitalized

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

$3,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Other warrants consist of the initial warrants issued in connection with the Company's entrance into the Loan and Security Agreement.

Note_7_LongTerm_Debt_Details_C

Note 7 - Long-Term Debt (Details) - Components of Long-Term Debt (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Long-Term Debt:	'	'
Less: unamortized debt discounts	($41,255)	($41,571)
Long-term debt, net of discount	232,959	227,948
Less: current portion	-3,750	-3,750
Long-term debt, less current portion, net of discount	229,209	224,198
Mississippi Development Authority Loan [Member]	'	'
Long-Term Debt:	'	'
Long-term debt	69,375	69,375
Loan and Security Agreement [Member]	'	'
Long-Term Debt:	'	'
Long-term debt	109,142	104,447
October 2013 Note Purchase Agreement [Member]	'	'
Long-Term Debt:	'	'
Long-term debt	95,697	95,697
Long-term debt, net of discount	$88,697	$88,408

Note_8_Income_Taxes_Details

Note 8 - Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Effective Income Tax Rate Reconciliation, Percent	0.00%	0.00%
Operating Loss Carryforwards	$89.90	'
Estimated Suspended Net Operating Loss	$4.70	'

Note_9_Commitments_and_Conting1

Note 9 - Commitments and Contingencies (Details) (Mississippi Development Authority Loan [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Mississippi Development Authority Loan [Member]	'
Note 9 - Commitments and Contingencies (Details) [Line Items]	'
Committed Capital Outlay Under Loan Agreement	$500
Committed Wages and Direct Local Purchases Under Loan Agreement	85
Loans Payable	$69.40

Note_10_RelatedParty_Transacti1

Note 10 - Related-Party Transactions (Details) (USD $)	1 Months Ended							3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Oct. 31, 2013	Mar. 31, 2014	Jan. 31, 2012	Mar. 31, 2013	Jan. 31, 2012	Jan. 31, 2012	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2014
		October 2013 Note Purchase Agreement [Member]	Alberta Lenders [Member]	Khosla [Member]	Khosla [Member]	Alberta Lenders/Khosla Term Loan [Member]	Alberta Lenders/Khosla Term Loan [Member]	Khosla [Member]	Khosla [Member]
Note 10 - Related-Party Transactions (Details) [Line Items]	'	'	'	'	'	'	'	'	'
Debt Instrument, Face Amount	'	$95.70	$50	'	$25	'	'	$50	'
Related Party Transaction, Due from (to) Related Party	'	'	'	'	'	-75	'	'	'
Line of Credit Facility, Maximum Borrowing Capacity, Increase	'	'	'	50	'	'	'	'	'
Financing Requirement Upon Which Purchase Commitments are Contingent	400	'	'	'	'	'	'	'	'
Maximum Amount to be Received as Part of Commitment Agreement	'	'	'	'	'	'	'	25	25
Line of Credit Facility, Amount Outstanding	'	'	'	'	'	'	'	$5	$5
Related Party, Minimum Ownership Percentage	'	'	'	'	'	'	5.00%	'	'

Note_11_Stockholders_Equity_De

Note 11 - Stockholders' Equity (Details) (USD $)	Mar. 18, 2014	Jun. 29, 2011	Mar. 31, 2014	Mar. 25, 2010	Mar. 18, 2014	Jun. 29, 2011	Apr. 30, 2011	Jun. 29, 2011
			Series B Convertible Preferred Stock [Member]	Series B Convertible Preferred Stock [Member]	ATM Warrants and Subsequent PIK Warrants [Member]	Common Class A [Member]	Series C Convertible Preferred Stock [Member]	Series C Convertible Preferred Stock [Member]
			Equipment Loans [Member]	Equipment Loans [Member]	Common Class A [Member]	Equipment Loans [Member]	Equipment Loans [Member]	Equipment Loans [Member]
					Khosla [Member]
Note 11 - Stockholders' Equity (Details) [Line Items]	'	'	'	'	'	'	'	'
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	5,374,877	'	16,998	'	5,374,877	'	'	'
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	$1.37	'	$2.94	'	$1.37	'	$4.90	'
Class of Warrant or Right, Term	'	'	'	'10 years	'	'	'	'
Class of Warrant or Right, Number of Securities Called by Warrants or Rights, Converted from Preferred Stock to Common Stock	'	'	'	'	'	16,998	61,200	25,000
Warrants To Be Issued To Purchase Securities In Next Round Equity Financing (in Dollars)	'	'	'	'	'	'	$300,000	'
Conversion Price as Percentage of Initial Public Offering Price	'	80.00%	'	'	'	'	'	'

Note_11_Stockholders_Equity_De1

Note 11 - Stockholders' Equity (Details) - Warrants Issued and Valuation Assumptions (USD $)	1 Months Ended	3 Months Ended
	Mar. 18, 2014	Mar. 31, 2014
Warrants Issued and Valuation Assumptions [Abstract]	'	'
Shares issuable	5,374,877	'
Stock price	$0.65	'
Exercise price	$1.37	'
Expected volatility	75.00%	'
Risk-free interest rate	2.01%	'
Expected term (in years)	'6 years 6 months	'7 years
Fair value	$0.36	'

Note_11_Stockholders_Equity_De2

Note 11 - Stockholders' Equity (Details) - Warrants Activity

Mar. 18, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Jan. 26, 2012

Mar. 31, 2014

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

Issued as of December 31, 2013 [Member]

ATM Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

Outstanding at March 31, 2014 [Member]

ATM Warrant [Member]

PIK Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Subsequent Drawdown [Member]

ATM Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Subsequent Drawdown [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

ATM Warrant [Member]

ATM Warrant [Member]

ATM Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

PIK Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Initial Warrant [Member]

Subsequent Drawdown [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Alberta Lenders 1538731 [Member]

Alberta Lenders 1538716 [Member]

Khosla [Member]

Khosla [Member]

Class of Warrant or Right [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant

5,374,877

148,355

264,890

686,745

194,693

347,633

648,400

278,055

[1]

496,472

[1]

387,263

[1]

2,139,997

725,756

1,295,848

1,010,802

560,631

1,001,016

780,824

'

[1]

'

[1]

'

[1]

874,111

1,560,738

1,697,547

755,324

1,348,649

1,429,224

278,055

[1]

496,472

[1]

387,263

[1]

2,139,997

480,123

334,862

'

[1]

'

[1]

'

[1]

1,161,790

2,139,997

[1]

Other warrants consist of the initial warrants issued in connection with the Company's entrance into the Loan and Security Agreement.

Note_12_StockBased_Compensatio2

Note 12 - Stock-Based Compensation (Details) (USD $)

3 Months Ended

3 Months Ended

33 Months Ended

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Employee Stock Option [Member]

Employee Stock Option [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Common Class A [Member]

Common Class A [Member]

Common Class B [Member]

Common Class B [Member]

Amended and Restated 2007 Plan [Member]

Amended and Restated 2007 Plan [Member]

Amended and Restated 2007 Plan [Member]

Long-term Incentive 2011 Plan [Member]

Incentive Plan 2013 [Member]

Incentive Plan 2013 [Member]

Incentive Plan 2013 [Member]

ESPP 2012 [Member]

Amended and Restated 2007 Plan [Member]

Long-term Incentive 2011 Plan [Member]

Amended and Restated 2007 Plan [Member]

Long-term Incentive 2011 Plan [Member]

Amended and Restated 2007 Plan [Member]

Amended and Restated 2007 Plan [Member]

Amended and Restated 2007 Plan [Member]

Amended and Restated 2007 Plan [Member]

Officer [Member]

Key Employee [Member]

Note 12 - Stock-Based Compensation (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number

'

'

'

'

4,800,000

5,500,000

3,700,000

3,900,000

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars)

'

'

'

'

'

'

'

'

$169,000

$503,000

'

'

'

'

'

'

Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars)

'

'

'

'

'

'

'

'

3,000,000

'

3,000,000

1,400,000

'

'

'

'

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition

'1 year 146 days

'4 years 292 days

'1 year 219 days

'1 year 292 days

'

'

'

'

'

'

'

'

'

'

'

'

Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options (in Dollars)

'

'

2,200,000

9,300,000

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

'

'

'

'

'

'

'

'

'

'

'

10,200,000

575,758

327,960

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

$0.32

'

'

'

'

Maximum Percentage of Shares to be Received by Participant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200.00%

'

Grants Eligible To Employee Of Company

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,500,000

Deduction In Percent Of Fair Market Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

Contribution To Percent Of Employees Pay

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

Employee Stock Ownership Plan, Restricted Common Stock, Per Year Maximum (in Dollars)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$25,000

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.77

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.10%

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

112.67%

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'6 months

Note_12_StockBased_Compensatio3

Note 12 - Stock-Based Compensation (Details) - Allocation of Stock-Based Compensation Expense (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Stock-based compensation expense	$2,149	$3,726
Cost of Sales [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Stock-based compensation expense	88	66
Research and Development Expense [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Stock-based compensation expense	249	627
General and Administrative Expense [Member]	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'
Stock-based compensation expense	$1,812	$3,033

Note_12_StockBased_Compensatio4

Note 12 - Stock-Based Compensation (Details) - Stock Option Activity (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2012
Amended and Restated 2007 Plan [Member]	'	'
Note 12 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]	'	'
Outstanding	'	9,415,000
Outstanding	'	$1.51
Outstanding	'5 years 255 days	'
Exercisable	7,440,000	'
Exercisable	$1.27	'
Exercisable	'5 years 255 days	'
Exercisable	$1,778	'
Exercised	-175,000	'
Exercised	$0.09	'
Forfeited	-686,000	'
Forfeited	$2.61	'
Outstanding	8,554,000	9,415,000
Outstanding	$1.46	$1.51
Outstanding	'5 years 255 days	'
Outstanding	1,826	'
Long-term Incentive 2011 Plan [Member]	'	'
Note 12 - Stock-Based Compensation (Details) - Stock Option Activity [Line Items]	'	'
Outstanding	207,000	'
Outstanding	$8.60	'
Outstanding	'9 years 292 days	'
Exercisable	42,000	'
Exercisable	$14.01	'
Exercisable	'7 years 146 days	'
Options Granted	1,750,000	'
Options Granted	$0.47	'
Outstanding	1,957,000	'
Outstanding	$1.33	'
Outstanding	'9 years 292 days	'
Outstanding	$180	'

Note_12_StockBased_Compensatio5

Note 12 - Stock-Based Compensation (Details) - Restricted Stock Activity (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014
Amended and Restated 2007 Plan [Member]	'
Note 12 - Stock-Based Compensation (Details) - Restricted Stock Activity [Line Items]	'
Nonvested	186
Nonvested	$15
Nonvested	144
Nonvested	$15
Vested	-40
Vested	$15
Forfeited	-2
Forfeited	$15
Long-term Incentive 2011 Plan [Member]	'
Note 12 - Stock-Based Compensation (Details) - Restricted Stock Activity [Line Items]	'
Nonvested	2,091
Nonvested	$6.14
Nonvested	1,577
Nonvested	$5.90
Vested	-474
Vested	($7)
Forfeited	-40
Forfeited	($5.14)

Note_12_StockBased_Compensatio6

Note 12 - Stock-Based Compensation (Details) - Weighted Average Assumptions (Long-term Incentive 2011 Plan [Member])	3 Months Ended
	Mar. 31, 2014
Long-term Incentive 2011 Plan [Member]	'
Note 12 - Stock-Based Compensation (Details) - Weighted Average Assumptions [Line Items]	'
Expected volatility	75.00%
Risk-free interest rate	2.13%
Expected term (in years)	'6 years 6 months