Stock-Based Compensation (Details Narrative) - USD ($) |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
May 08, 2014 |
Sep. 30, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Share-based payment award increase of shares offering date | January 1, 2015 | |||
| Share-based payment award, percentage of outstanding stock maximum | 4.00% | 4.00% | ||
| Unrecognized share-based compensation | $ 59,000 | |||
| Share-based compensation weighted average period | 3 months 19 days | |||
| Vesting description | All outstanding options expire ten years from date of grant. Options granted to employees prior to 2018 vest in equal monthly installments over three years. Beginning in 2018, options granted to employees vest over four years, with 25% of the shares vesting on the first annual anniversary of grant and the remaining shares vesting in 36 equal monthly installments over the following 3 years. A portion of options granted to consultants vests over four years, with the remaining vesting being based upon the achievement of certain performance milestones, which are tied to either financing or drug development initiatives. | |||
| Number of restricted stock awards granted | 826,819 | 441,005 | ||
| General and administrative expense | $ 616,000 | $ 360,000 | ||
| Unrecognized share-based compensation, shares | 200,000 | |||
| Stock Options [Member] | ||||
| Number of option vested | 11,851,415 | |||
| Option vested price per share | $ 1.17 | |||
| Option intrinsic value | $ 21,700,000 | |||
| Aggregate intrinsic price | $ 2.27 | |||
| Unrecognized share-based compensation | $ 3,900,000 | |||
| Share-based compensation weighted average period | 2 years 7 months 6 days | |||
| Stock options expire term | 10 years | |||
| Employee [Member] | ||||
| Stock option shares vesting percentage | 25.00% | |||
| 2013 Equity Compensation Plan [Member] | ||||
| Option granted description | Granted at prices not less than 100% of the fair value | |||
| Option term | The term of the options is no longer than ten years. | |||
| Number of common stock issued under plan | 22,421,644 | |||
| 2013 Equity Compensation Plan [Member] | Minimum [Member] | ||||
| Option vested period | 3 years | |||
| 2013 Equity Compensation Plan [Member] | Maximum [Member] | ||||
| Option vested period | 4 years | |||
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- Definition Unrecognized share-based compensation, shares. No definition available.
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- Definition Represents the commencing date of stock available for future issuance volume changed under the plan approval. No definition available.
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of general and administrative expense classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares authorized for issuance under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of fully vested and expected to vest options outstanding that can 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock. No definition available.
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- Definition Description of terms of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of vesting of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average grant-date fair value of options vested. No definition available.
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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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