Equity (Details Textual) - USD ($) |
1 Months Ended | 3 Months Ended | |
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Jan. 31, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
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Equity (Textual) | |||
Sales of aggregate of common stock units | 924,500 | ||
Net proceeds on sale of common stock | $ 400,000 | ||
Net proceeds on exercise of warrants | $ 1,503,762 | ||
Common Stock [Member] | |||
Equity (Textual) | |||
Sales of aggregate of common stock units | 30,237,894 | ||
Issuance of common stock, shares | 30,237,894 | ||
Series A warrants [Member] | |||
Equity (Textual) | |||
Proceeds from warrants exercised | $ 1,500,000 | ||
Description of warrant exercisable | Each series A warrant exercisable for one share of common stock at an exercise price of $0.60 per share. | ||
Warrants exercised by warrant holders | 2,500,000 | ||
Aggregate series warrants | 7,559,445 | ||
Warrant expired | 4,900,000 | 5,000,000 | |
Series B warrants [Member] | |||
Equity (Textual) | |||
Description of warrant exercisable | Each series B warrant exercisable for one share of Common Stock at an exercise price of $0.70 per share, resulting in gross proceeds of approximately $15.1 million (each unit was sold at $0.50 per unit), and net proceeds of approximately $13.8 million after deducting expenses relating to dealer-manager fees and other offering expenses. | ||
Aggregate series warrants | 22,678,393 | ||
Stock Options [Member] | |||
Equity (Textual) | |||
Stock option granted to employees | 700,000 | ||
Option exercise price minimum | $ 0.40 | ||
Option exercise price maximum | $ 0.58 | ||
Stock options, description | The options have an aggregated fair value of $0.2 million that was calculated using the Black-Scholes option-pricing model. Variables used in the Black-Scholes option-pricing model include: (1) discount rate range from 2.45% to 2.60% (2) expected life of 6 years, (3) expected volatility range from 78.5% to 79.0%, and (4) no expected dividends. During the three months ended March 31, 2019, options to purchase 0.1 million shares were cancelled upon the termination of employment for several employees. | ||
Total option expense | $ 300,000 | $ 600,000 | |
Unrecognized compensation expense | $ 2,500,000 | ||
Stock options, term | 10 years | ||
Stock options, vesting period | 4 years | ||
Stock options outstanding | 7,800,000 | ||
Weighted average exercise price | $ 1.65 | ||
Weighted average remaining contractual term | 8 years 4 days |
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- Definition Equity textual abstract. No definition available.
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- References No definition available.
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- Definition Warrants exercised by warrant holders. No definition available.
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Description of stock transaction which may include details of the offering (IPO, private placement), a description of the stock sold, percentage of subsidiary's or equity investee's stock sold, a description of the investors and whether the stock was issued in a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. No definition available.
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. 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 remaining contractual term for option awards outstanding, 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 Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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