Class of Warrant or Right, Number of Warrants to Purchase One Share of Stock

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.

+ Details

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- Definition

Purchase commitment issuance of warrants shares of common stock.

+ References

No definition available.

+ Details

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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

+ Details

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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

+ Details

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Period Type:	instant

- 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-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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Balance Type:	na
Period Type:	duration

- Definition

Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (ee)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3367-108585

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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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- Details

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- Details

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Warrants and Derivative Liabilities - Additional Information (Detail) - USD ($)				3 Months Ended		9 Months Ended
	Jan. 05, 2018	Dec. 19, 2014	Apr. 04, 2012	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Nov. 13, 2014
Derivative [Line Items]
Change in fair value of warrants and contingent consideration				$ 399,000	$ 101,000	$ 1,468,000	$ 667,000
Hercules Warrants
Derivative [Line Items]
Change in fair value of warrants and contingent consideration				0	0	100,000	0
November 2014 Warrant
Derivative [Line Items]
Change in fair value of warrants and contingent consideration				400,000	0	$ 1,400,000	300,000
Warrants expiration date						Nov. 13, 2019
Common stock units offered (in shares)								909,090
Warrants to purchase one share of common stock (in shares)								0.9
Number of warrants issued to purchase common stock (in shares)								818,181
Sale of stock, price per share (in dollars per share)								$ 7.81
Acquisition contingent consideration
Derivative [Line Items]
Change in fair value of warrants and contingent consideration				(300,000)		$ (100,000)
Capital Ventures International \| Exchanged Warrants
Derivative [Line Items]
Change in fair value of warrants and contingent consideration				$ 0	$ 100,000	$ 0	$ 300,000
Senior convertible note warrant \| Capital Ventures International \| Original Warrants
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock (in shares)			309,406
Senior secured loan \| Hercules Technology Growth Capital \| Hercules Warrants
Derivative [Line Items]
Number of shares received from warrants received to purchase common stock (in shares)		58,823
Warrant exercise price (in dollars per share)		$ 7.85		$ 7.85		$ 7.85
Warrants expiration date						Jun. 30, 2020
Infinia Technology Corporation (ITC) \| Subsequent event
Derivative [Line Items]
Make whole payment	$ 700,000