Date when an entity was incorporated

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- Definition

Gross proceeds from issuance of common stock and warrants.

+ References

No definition available.

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- Definition

Organization and basis of presentation .

+ References

No definition available.

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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
-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585

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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.

+ References

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

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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Organization and Basis of Presentation - Additional Information (Detail) - USD ($)			6 Months Ended
	Aug. 04, 2016	Aug. 03, 2016	Jun. 30, 2016	Dec. 31, 2015
Organization And Basis Of Presentation [Line Items]
Date of incorporation			Jan. 29, 2007
Accumulated deficit			$ (54,256,519)	$ (48,060,612)
Common stock, shares issued			7,291,841	7,201,774
Subsequent Event [Member] \| Square 1 Bank [Member] \| Loan and security agreement [Member]
Organization And Basis Of Presentation [Line Items]
Repayment of principal and accrued interest	$ 4,500,000
Subsequent Event [Member] \| July 2016 Financing and August 2016 Financing [Member]
Organization And Basis Of Presentation [Line Items]
Common stock, shares issued		5,048,632
Aggregate gross proceeds from sale of common stock and warrants		$ 14,500,000
Aggregate net proceeds from sale of common stock and warrants		$ 12,800,000