Debt instrument covenant unrestricted cash balance requirement.

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Debt instrument, end of term fee.

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No definition available.

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- Definition

Legal and origination costs.

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Minimum amount of proceeds from specified asset dispositions for mandatory prepayment feature.

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No definition available.

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- Definition

Non-cash interest expense amortization of debt discount.

+ References

No definition available.

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- Definition

Purchase commitment, issuance of warrants, fair value of shares of common stock.

+ References

No definition available.

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- Definition

Purchase commitment issuance of warrants shares 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
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Expiration date of warrants held.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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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

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Name Accounting Standards Codification
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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.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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- Definition

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

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

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Debt - Additional Information (Detail) - USD ($)							1 Months Ended	3 Months Ended				9 Months Ended	12 Months Ended
Debt - Additional Information (Detail) - USD ($)	Apr. 29, 2015	Dec. 19, 2014	Nov. 13, 2014	Mar. 02, 2014	Nov. 15, 2013	Apr. 04, 2012	Apr. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Proceeds from additional equity offering	$ 22,300,000
Exercise price	$ 9.41
Warrants expiration date			Nov. 13, 2019
Interest expense													$ 1,000,000	$ 1,700,000	$ 9,700,000
Non-cash interest expense amortization of debt discount													400,000	500,000	7,700,000
Loss on extinguishment of debt															(5,197,000)
Hercules Technology Growth Capital \| Hercules Warrant
Debt Instrument [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
Capital Ventures International
Debt Instrument [Line Items]
Debt conversion, shares issued				663,000
Loss on extinguishment of debt										$ (5,200,000)
Senior Secured Loan \| Hercules Technology Growth Capital
Debt Instrument [Line Items]
Number of shares received from warrants received to purchase common stock		58,823
Exercise price		$ 11.00
Senior Convertible Debt \| Capital Ventures International
Debt Instrument [Line Items]
Number of shares received from warrants received to purchase common stock						309,406
Non-cash interest expense amortization of debt discount															$ 4,100,000
Net proceeds after fees and expenses of purchase agreement						$ 23,200,000
Term Loan B \| Senior Secured Loan \| Hercules Technology Growth Capital
Debt Instrument [Line Items]
Legal and origination costs											$ 200,000
Debt, face amount					$ 10,000,000
Net proceeds from debt					$ 9,800,000
Interest rate on loan					11.00%
End of term fee													500,000
Minimum amount of proceeds from specified asset dispositions for mandatory prepayment feature													1,000,000
Outstanding principal balance													2,700,000
Number of shares received from warrants received to purchase common stock		25,641
Fair value of warrants at issuance		$ 200,000
Interest expense													1,000,000
Total debt discount being amortized into interest expense													200,000	400,000
Term Loan B \| Senior Secured Loan \| Hercules Technology Growth Capital \| Prime Rate \| Minimum
Debt Instrument [Line Items]
Prime rate					3.75%
Term Loan C \| Senior Secured Loan \| Hercules Technology Growth Capital
Debt Instrument [Line Items]
Legal and origination costs									$ 100,000
Debt, face amount		1,500,000
Net proceeds from debt		$ 1,400,000
End of term fee												$ 100,000
Debt Instrument, Maturity Date												Jun. 01, 2017
Interest expense													300,000
Non-cash interest expense amortization of debt discount													100,000
Term Loan C \| Senior Secured Loan \| Hercules Technology Growth Capital \| Minimum
Debt Instrument [Line Items]
Proceeds from additional equity offering								$ 10,000,000
Term Loan C \| Senior Secured Loan \| Hercules Technology Growth Capital \| Maximum
Debt Instrument [Line Items]
Non-cash interest expense amortization of debt discount														$ 100,000
Term Loan \| Senior Secured Loan \| Hercules Technology Growth Capital
Debt Instrument [Line Items]
Number of shares received from warrants received to purchase common stock		13,927
Fair value of warrants at issuance		$ 400,000
Covenant, unrestricted cash balance requirement													$ 2,000,000
Debt Instrument, Maturity Date, Description													As a result of the Company’s April 2015 equity offering, the Minimum Threshold was reduced to the lesser of $2.0 million or the aggregate outstanding principal balance of the Term Loans.
Repayments of term loan													$ 2,000,000