Beneficial ownership limitation percentage.

No definition available.

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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.

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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.

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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.

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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 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ 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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Warrants and Derivative Liabilities - Additional Information (Detail) - USD ($)					1 Months Ended		12 Months Ended
	Apr. 29, 2015	Dec. 19, 2014	Nov. 13, 2014	Apr. 04, 2012	Apr. 30, 2015	Dec. 31, 2012	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Derivative [Line Items]
Exercise price	$ 9.41
Gain (loss) in change of fair value of derivative instruments and warrants							$ (228,000)	$ 3,963,000	$ 1,872,000
Warrants expiration date			Nov. 13, 2019
Common stock units offered			909,090
Warrant to purchase one share of common stock			90.00%
Number of warrants issued to purchase common stock			818,181
Sale of stock, price per share			$ 11.00
Hercules Warrant
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants							0	0
Hercules Warrant \| Hercules Technology Growth Capital
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock		58,823
Exercise price		$ 11.00			$ 9.41
Warrants expiration date		Jun. 30, 2020
Hudson Warrant
Derivative [Line Items]
Gain (loss) in change of fair value of derivative instruments and warrants							$ (100,000)	1,800,000
Capital Ventures International
Derivative [Line Items]
Warrant exercise, waiting period							6 months
Warrant exercise period							5 years
Required notification period							61 days
Gain (loss) in change of fair value of derivative instruments and warrants							$ (100,000)	$ 1,900,000	$ 1,200,000
Senior Convertible Debt \| Capital Ventures International
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock				309,406
Exercise price				$ 15.94
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%