Amendment agreement month and year.

No definition available.

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- Definition

Class of warrant or right number of securities called by warrants or rights expired.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Reclassification of warrant liability to additional paid-in capital.

+ References

No definition available.

+ Details

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- Definition

Sale of stock.

+ References

No definition available.

+ Details

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Stockholders' Equity - Warrants - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2018
Sale Of Stock [Line Items]
Change in fair value of warrant liability			$ 433,392
Warrant Amendments [Member]
Sale Of Stock [Line Items]
Unregistered warrants to purchase of common stock		2,449,129
Change in fair value of warrant liability		$ 433,000
Reclassification of warrant liability to Additional Paid-in Capital		$ 3,300,000
Amendment date		2018-03
Underwriters [Member]
Sale Of Stock [Line Items]
Unregistered warrants to purchase of common stock expired	84,000