Common stock, authorized offering amount under agreement to sell.

No definition available.

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- Definition

Equity financing and warrants.

+ References

No definition available.

+ Details

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- Definition

The cash inflow associated with the amount received from entity's raising of capital via registered direct offering, net of related financing costs.

+ References

No definition available.

+ Details

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- Definition

Selling commission per additional shares sold percentage.

+ References

No definition available.

+ Details

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- Definition

Face amount or stated value per share of common stock.

+ 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

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

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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Equity Financings and Warrants (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Aug. 21, 2017	Jan. 11, 2017	Dec. 31, 2016
Equity Financing And Warrants [Line Items]
Common stock, par value	$ 0.001			$ 0.001
Common stock, shares issued	11,775,062			9,082,366
Proceeds from the issuance of common stock	$ 6,551,000
JonesTrading
Equity Financing And Warrants [Line Items]
Percentage of selling commission per additional shares sold			3.00%
Sales Agreement
Equity Financing And Warrants [Line Items]
Common stock, shares issued	2,677,525
Proceeds from the issuance of common stock	$ 6,600,000
Net proceeds from issuance of common stock	$ 6,100,000
Sales Agreement \| JonesTrading
Equity Financing And Warrants [Line Items]
Common stock, par value			$ 0.001
Aggregate offering price of common stock authorized		$ 10,200,000	$ 7,300,000