Financial Instruments - Additional Information (Detail) - USD ($) |
1 Months Ended | 3 Months Ended | |
|---|---|---|---|
Apr. 30, 2018 |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| Schedule of Available-for-sale Securities [Line Items] | |||
| Marketable securities maturity period | 1 year | ||
| Warrants to purchase common stock | 1,297,151 | 1,297,151 | |
| Financial instruments fair value transfers between Level 1, Level 2 or Level 3 | $ 0 | ||
| April 2018 Warrant [Member] | |||
| Schedule of Available-for-sale Securities [Line Items] | |||
| Warrants maturity period | 5 years | ||
| Warrants to purchase common stock | 20,000 | ||
| Warrant exercise price | $ 11.73 |
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Fair value transfers between level 1 level 2 or level 3 amount. No definition available.
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- Definition Marketable securities maturity period. No definition available.
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- Definition Warrants maturity period. No definition available.
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- Details
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