Stock-Based Compensation - Schedule of Options Granted (Details) - $ / shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Share-based Payment Arrangement [Abstract] | ||||
| Options granted | 105,600 | 157,000 | 1,490,490 | 1,026,800 |
| Weighted-average Exercise price | $ 2.58 | $ 14.45 | $ 6.53 | $ 14.38 |
| Weighted-average Grant date fair value | $ 2.09 | $ 11.44 | $ 5.14 | $ 11.36 |
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- References No definition available.
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- 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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