Beneficial ownership limitation percentage.

No definition available.

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- Definition

Convertible debt instrument contractual term.

+ References

No definition available.

+ Details

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- Definition

Convertible debt instrument redemption waiting period.

+ References

No definition available.

+ Details

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- Definition

Gain (loss) in change of fair value of derivative instruments and warrants.

+ References

No definition available.

+ Details

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- Definition

Number of warrants issued to purchase common stock.

+ References

No definition available.

+ Details

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- Definition

Ownership percentage notification period requirement.

+ References

No definition available.

+ Details

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- Definition

Purchase commitment issuance of warrants shares of common stock.

+ References

No definition available.

+ Details

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- Definition

Warrant exercise period.

+ References

No definition available.

+ Details

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- Definition

Warrant exercise waiting period.

+ References

No definition available.

+ Details

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- Definition

Warrants to purchase one share of common stock.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Exercise price of the warrants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

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- Definition

Expiration date of warrants held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

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- Definition

Number of common units issued of limited liability company (LLC).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

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-Name Accounting Standards Codification

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-SubTopic 10

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-Topic 272

-SubTopic 10

-Section 50

-Paragraph 1

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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

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-Paragraph 3

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Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

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- Details

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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- Definition

Number of new stock issued during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Warrants and Derivative Liabilities - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended			3 Months Ended		9 Months Ended		0 Months Ended			1 Months Ended	0 Months Ended
	Nov. 13, 2014	Nov. 15, 2013	Jun. 05, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 02, 2014	Oct. 09, 2013	Apr. 04, 2012	Dec. 31, 2012	Dec. 19, 2014
Derivative [Line Items]
Common stock, shares issued	9,100,000
Gain (loss) in change of fair value of derivative instruments and warrants				$ 2,288	$ 535	$ 3,048	$ 1,890
Convertible debt instrument redemption waiting period							1 year
Convertible debt instrument contractual term							30 months
Warrants expiration date		May 15, 2019	Dec. 05, 2017
Common stock units offered	9,100,000us-gaap_CommonUnitIssued
Warrant to purchase one share of common stock	90.00%
Number Of Warrants Issued To Purchase Common Stock	8,200,000
Shares issued, price per share	$ 1.10us-gaap_SaleOfStockPricePerShare			$ 1.10us-gaap_SaleOfStockPricePerShare		$ 1.10us-gaap_SaleOfStockPricePerShare
Convertible Bond
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants					200		500
Senior Secured Term Loan First Warrant
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants				100	100	100	100
Hudson Warrant
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants				1,100		1,100
Capital Ventures International
Derivative [Line Items]
Warrant exercise, waiting period							6 months
Warrant exercise period							5 years
Common stock, shares issued				9,100,000
Required notification period							61 days
Gain (loss) in change of fair value of derivative instruments and warrants				1,000	300	1,700	1,200
Debt conversion, shares issued								6,600,000
Senior Convertible Debt \| Capital Ventures International
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock										3,094,060
Exercise price				$ 2.21					$ 2.61	$ 5.45
New Unsecured Senior Convertible Note
Derivative [Line Items]
Conversion price										$ 4.85	3.19
Debt conversion, shares issued								6,600,000
New Unsecured Senior Convertible Note \| Capital Ventures International \| Minimum
Derivative [Line Items]
Beneficial ownership limitation percentage											4.99%
New Unsecured Senior Convertible Note \| Capital Ventures International \| Maximum
Derivative [Line Items]
Beneficial ownership limitation percentage											9.99%
Senior Secured Loan
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock		256,410
Exercise price		1.95				$ 1.70
Common stock, shares issued	9,100,000
Senior Secured Loan \| Maximum
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants				$ 100	$ 100	$ 200	$ 100
Senior Secured Loan \| Hercules Technology Growth Capital
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock		256,410	139,276									588,235
Exercise price		1.95	3.59		$ 1.95	$ 1.70						$ 1.10
Common stock, shares issued	9,100,000