Stock-Based Awards - Schedule of Warrants Activity (Details) - $ / shares |
12 Months Ended | |
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Dec. 31, 2018 |
Dec. 31, 2017 |
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| Share-based Payment Arrangement [Abstract] | ||
| Number of Warrants, Outstanding, Beginning balance | 2,243 | 1,020 |
| Number of Warrants, Issued | 416 | 1,348 |
| Number of Warrants, Exercised | (445) | (125) |
| Number of Warrants, Outstanding, Ending balance | 2,214 | 2,243 |
| Weighted Average Exercise Price, Outstanding, Beginning | $ 29.52 | $ 18.04 |
| Weighted Average Exercise Price, Issued | 4.68 | 27.84 |
| Weighted Average Exercise Price, Exercised | 13.95 | 62.50 |
| Weighted Average Exercise Price, Outstanding, Ending | $ 28.93 | $ 29.52 |
| Warrants outstanding ,Weighted Average Remaining Contractual Life in Years, Beginning | 3 years 3 months 26 days | 4 years 5 months 12 days |
| Warrants outstanding ,Weighted Average Remaining Contractual Life in Years, Beginning | 2 years 7 months 2 days | 3 years 3 months 26 days |
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- Definition Share-based compensation arrangement by share-based payment award, equity instruments other than options, outstanding, weighted average remaining contractual terms. No definition available.
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- Definition Share based compensation arrangement by share based payment award non option equity instruments weighted average exercise price exercised. No definition available.
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- Definition Share based compensation arrangement by share based payment award non option equity instruments weighted average exercise price granted. No definition available.
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- Definition Weighted Average Exercise Price, Outstanding. No definition available.
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- References No definition available.
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, 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 non-option equity instruments exercised by participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Net number of non-option equity instruments granted to participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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