Line of Credit Facility, Cash Collateral Amount Funded

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- Definition

Penalty Fee if Occurred Between 24 Months and 36 Months After Funding Date

+ References

No definition available.

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- Definition

Penalty Fee if Occurred More Than 36 Months After Funding Date

+ References

No definition available.

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- Definition

Penalty Fee if Occurred On or Before 24 Months After Funding Date

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No definition available.

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- Definition

Stock Issued During Period Shares Exercise Of Warrants

+ References

No definition available.

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- Definition

Stock Issued During Period Value Exercise Of Warrants

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No definition available.

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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))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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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
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
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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

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.

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No definition available.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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-Paragraph 1A
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
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- Definition

Amount of the total principal payments made during the annual reporting period.

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-Publisher FASB
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-Name Regulation S-X (SX)
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-Section 02
-Paragraph 19, 22
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Indebtedness - Additional Information (Detail) - USD ($)						1 Months Ended		2 Months Ended	12 Months Ended
	Jan. 15, 2016	May. 11, 2015	Nov. 25, 2014	Feb. 01, 2013	Sep. 04, 2012	Jan. 31, 2016	May. 31, 2015	Jul. 31, 2010	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 02, 2014	Nov. 30, 2014	Dec. 31, 2012	Sep. 30, 2012	May. 31, 2010
Debt Instrument [Line Items]
Loss on establishment									$ 0	$ 459,000	$ 0
Shares of common stock into which warrants are exercisable												871,840
Warrant issued, exercise price (in dollars per share)												$ 11.47
Exercise of stock warrants										15,000	9,000
Debt Interest expense									0	$ 0	$ 991,000
Term Loan
Debt Instrument [Line Items]
Loss on establishment									500,000
Accretion of effective interest payment loan									$ 354,000
Term Loan \| Silicon Valley Bank
Debt Instrument [Line Items]
Maximum borrowing capacity															$ 5,000,000.0	$ 1,500,000.0
Interest at a fixed per annum rate										7.00%	5.75%			5.75%		8.25%
Amount borrowed				$ 3,000,000.0	$ 2,000,000.0			$ 1,500,000.0
Payment of original loan					$ 500,000.0
Penalty fee for prepayment on or before 24 months									3.00%
Penalty fee for prepayment after 24 months but before 36 months									1.00%
Penalty fee for prepayment after 36 months									0.00%
Debt discount accreted as interest expense									$ 328,000
Debt Interest expense									102,000
Outstanding loan									$ 14,100,000	$ 10,000,000
Term Loan \| Silicon Valley Bank \| Prime Lending Rate
Debt Instrument [Line Items]
Interest rate for tranche									3.75%
Term Loan \| Silicon Valley Bank \| First Tranche
Debt Instrument [Line Items]
Amount borrowed			$ 10,000,000.0
Payment of original loan			$ 3,200,000.0
Term Loan \| Silicon Valley Bank \| Second Tranche
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 15,000,000.0
Amount borrowed		$ 5,000,000					$ 5,000,000
Exercise of stock warrants (in shares)							27,500
Exercise of stock warrants							$ 11.83
Subsequent Event \| Term Loan \| Silicon Valley Bank
Debt Instrument [Line Items]
Required collateral amount	$ 15,100,000					$ 15,100,000
Common Stock \| 2014 SVB Warrant
Debt Instrument [Line Items]
Shares of common stock into which warrants are exercisable			27,500
Warrant issued, exercise price (in dollars per share)			$ 11.04