Stock Options - Summary of Option Activity (Details) - USD ($) |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||
| Shares Outstanding, Beginning balance | 7,844,966 | |
| Shares, Granted | 1,574,500 | |
| Shares, Exercised | (36,465) | (160,549) |
| Shares, Forfeited | (40,417) | |
| Shares Outstanding, Ending balance | 9,342,584 | |
| Shares, Vested | 5,049,555 | |
| Weighted Average Exercise Price Outstanding, Beginning balance | $ 3.75 | |
| Weighted Average Exercise Price, Granted | 8.32 | |
| Weighted Average Exercise Price, Exercised | 4.30 | |
| Weighted Average Exercise Price, Forfeited | 7.28 | |
| Weighted Average Exercise Price Outstanding, Ending balance | 4.50 | |
| Weighted Average Exercise Price, Vested | $ 2.41 | |
| Weighted Average Remaining Contractual Term in Years, Outstanding | 7 years 10 months 6 days | |
| Weighted Average Remaining Contractual Term in Years, Vested | 6 years 11 months 4 days | |
| Average Intrinsic Value, Outstanding | $ 29,325,265 | |
| Average Intrinsic Value, Vested | $ 24,544,006 | |
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- References No definition available.
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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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://www.xbrl.org/2003/role/presentationRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. 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://www.xbrl.org/2003/role/presentationRef
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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 options outstanding. 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://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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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://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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