Fair value measurements warrants outstanding.

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.

+ References

No definition available.

+ Details

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- Definition

Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

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- Definition

Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

+ Details

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- Definition

Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

+ Details

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- Details

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- Details

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- Details

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- Details

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Warrants - Additional Information (Detail) - USD ($)	Feb. 08, 2019	Jun. 09, 2017	Mar. 31, 2019	Dec. 31, 2018
June 2017 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants are fully vested, exercise price		$ 8.25
Fair value of the warrants derivative liability			$ 1,700	$ 3,700
June 2017 Warrants [Member] \| IPO Selling Agent [Member]
Class Of Warrant Or Right [Line Items]
Purchase of warrants issued		33,275
June 2017 Warrants [Member] \| IPO [Member]
Class Of Warrant Or Right [Line Items]
Warrants years of life		5 years
February 2019 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants are fully vested, exercise price	$ 1.75
Fair value of the warrants derivative liability	$ 196,000		$ 156,000
February 2019 Warrants [Member] \| IPO Selling Agent [Member]
Class Of Warrant Or Right [Line Items]
Purchase of warrants issued	363,400
February 2019 Warrants [Member] \| IPO [Member]
Class Of Warrant Or Right [Line Items]
Warrants years of life	4 years