Changes In Equity And Comprehensive Income Line Items [Line Items]

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- Definition

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

+ 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)(4))

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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.

+ 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)(2))

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- Definition

Face amount or stated value per share of common stock.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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-Section 02

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- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section 25

-Paragraph 13

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

No definition available.

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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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-Topic 505

-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Number 210

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- Definition

Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.

+ References

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-Subparagraph (27)

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Securities Purchase Agreement and Warrant Issuances - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
	Mar. 26, 2015	Sep. 08, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Changes In Equity And Comprehensive Income Line Items [Line Items]
Common stock shares issued at par value (per share)			$ 0.001		$ 0.001		$ 0.001
Proceeds from the issuance of Series C preferred stock and common stock, net of issuance costs					$ 0	$ 14,163
Fair value adjustment			$ 0	$ 4,788	0	4,788
Proceeds from the exercise of warrant to purchase common stock					$ 8,644	$ 0
Series C Preferred Stock
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of shares sold		87,196
Convertible preferred stock par value per share		$ 0.001
Number of shares sold, Per share price		$ 17.50
Proceeds from the issuance of Series C preferred stock and common stock, net of issuance costs		$ 14,400
Common Stock
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of shares sold		7,363,334
Common stock shares issued at par value (per share)		$ 0.001
Number of shares sold, Per share price		$ 1.75
Common stock warrants outstanding
Changes In Equity And Comprehensive Income Line Items [Line Items]
Warrants to purchase common stock sold (shares)		4,117,647
Exercise price per share ($ per share)		$ 2.26
2014 Warrant
Changes In Equity And Comprehensive Income Line Items [Line Items]
Proceeds from the exercise of warrant to purchase common stock	$ 8,600
2014 Warrant \| Common stock warrants outstanding
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of shares sold	3,824,600
Exercise price per share ($ per share)		$ 2.26
2015 Warrant
Changes In Equity And Comprehensive Income Line Items [Line Items]
Proceeds from the exercise of warrant to purchase common stock	$ 3,500
2015 Warrant \| Common stock warrants outstanding
Changes In Equity And Comprehensive Income Line Items [Line Items]
Warrants to purchase common stock sold (shares)	1,593,583
Exercise price per share ($ per share)	$ 5.50