Stock-based Compensation - Summary of non-vested stock options (Details 1) |
6 Months Ended |
|---|---|
|
Jun. 30, 2018
$ / shares
shares
| |
| Shares | |
| Non-vested shares at December 31, 2017 | shares | 1,424,651 |
| Granted | shares | 0 |
| Vested | shares | (242,000) |
| Forfeited | shares | (39,000) |
| Non-vested shares at June 30, 2018 | shares | 1,143,651 |
| Weighted Average Grant Date Fair Value | |
| Weighted Average Grant Date Fair Valuet December 31, 2017 | $ / shares | $ 0.99 |
| Weighted Average Grant Date Fair Value Granted | $ / shares | 0 |
| Weighted Average Grant Date Fair Value Vested | $ / shares | 1.23 |
| Weighted Average Grant Date Fair Value Forfeited | $ / shares | 1.08 |
| Weighted Average Grant Date Fair Value June 30, 2018 | $ / shares | $ 0.94 |
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition The weighted average grant-date fair 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 Number of non-vested options outstanding. No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Number of non-vested options forfeited. No definition available.
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- Definition Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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- References No definition available.
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- Definition Number of options vested. No definition available.
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- Definition Weighted average grant-date fair value of options vested. No definition available.
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