Amount of term loan facility required to be drawn.

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- Definition

Class of additional warrant or right number of securities called by warrants or rights.

+ References

No definition available.

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- Definition

Debt instrument additional interest rate accrue on default.

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No definition available.

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- Definition

Debt instrument interest rate of final payment on principal amount.

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No definition available.

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- Definition

Number of tranches.

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- Definition

Date the warrants or rights are exercisable, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(3))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 3

-Article 4

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

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-Subparagraph 2

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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-Publisher FASB

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-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Number 210

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- Definition

Disclosure of timing of required repayments, sinking fund requirements, and other redeemable securities at fixed or determinable prices and dates in the five years immediately following the date of the latest balance sheet presented in the financial statements, and the amount thereafter to fully repay the principal of long-term debt. These disclosures may be made either on an individual debt or security basis, by type of debt or security basis, or on a combined basis.

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-SubTopic 10

-Section 50

-Paragraph 3

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-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

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- Definition

The cash inflow from the additional capital contribution to the entity.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

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- Definition

Amount per share or per unit of equity securities issued by non-development stage entity.

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No definition available.

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Subsequent Events - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
	Jan. 08, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Subsequent Event [Line Items]
Proceeds from Issuance or Sale of Equity	$ 30,000,000
Debt Instrument, interest rate terms	The Term Loan will mature on July 1, 2018. Each advance under the Term Loan accrues interest at a floating per annum rate equal to the greater of (i) 7.30% or (ii) the sum of 7.30% plus the prime rate minus 5.75%. The Term Loan provides for interest-only payments on a monthly basis until December 31, 2015
Long-term debt, maturities, prepayment terms		Any such prepayment of the Term Loan is subject to a prepayment charge of (i) 3.0% if such prepayment occurs within twelve months of the Closing Date, (ii) 2.0% if such prepayment occurs after twelve months following the Closing Date but on or prior to twenty-four months following the Closing Date, and (iii) 1.0% thereafter
Additional interest rate accrue on default		5.00%
Interest rate of final payment on principal amount		6.70%
Purchase of common stock, shares		20,125,049us-gaap_CommonStockSharesIssued	785,531us-gaap_CommonStockSharesIssued
Proceeds from sale of common stock		140,000	35,000	3,000
Subsequent Event
Subsequent Event [Line Items]
Number of tranches	3
Subsequent Event \| Maximum [Member]
Subsequent Event [Line Items]
Proceeds from Issuance or Sale of Equity	40,000,000
Subsequent Event \| Minimum [Member]
Subsequent Event [Line Items]
Amount of term loan facility required to be drawn	3,000,000
Hercules Technology Growth Capital, Inc. [Member] \| Subsequent Event
Subsequent Event [Line Items]
Loan and security agreement, maximum borrowing capacity	26,000,000
Common stock per share	$ 6.05
Conversion of preferred warrants to common warrants.	137,521
Class of additional warrant or right number of securities called by warrants or rights	34,380
Class of warrant or right, date from which warrants or rights exercisable	Jan. 08, 2020
Purchase of common stock, shares	135,501
Purchase price of common share	$ 7.38
Proceeds from sale of common stock	1,000,000
Borrowings One [Member] \| Subsequent Event
Subsequent Event [Line Items]
Loan and security agreement, maximum borrowing capacity	15,000,000
Borrowings Two [Member] \| Subsequent Event
Subsequent Event [Line Items]
Loan and security agreement, maximum borrowing capacity	5,000,000
Borrowings Three [Member] \| Subsequent Event
Subsequent Event [Line Items]
Loan and security agreement, maximum borrowing capacity	$ 6,000,000