Warrants (Narrative) (Details) - $ / shares |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2018 |
Dec. 31, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
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| Class of Warrant or Right [Line Items] | ||||
| Number of warrants, Outstanding | 7,099,609 | 7,099,609 | 4,606,761 | 5,452,691 |
| Exercise price | $ 4.55 | $ 4.55 | $ 5.21 | $ 4.92 |
| Warrant expiration date, start | Jul. 26, 2018 | |||
| Warrant expiration date, end | Apr. 17, 2023 | |||
| Average remaining contractual life of warrants outstanding | 3 years 9 months 18 days | |||
| Probability of entering into a fundamental transaction | 5.00% | |||
| Maximum [Member] | ||||
| Class of Warrant or Right [Line Items] | ||||
| Exercise price | $ 12.80 | |||
| Minimum [Member] | ||||
| Class of Warrant or Right [Line Items] | ||||
| Exercise price | $ 2.85 |
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- Definition Exercise price of the warrants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The latest date of expiration of warrants held. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The earliest date of expiration of warrants held. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Investment Warrants Weighted Average Remaining Contractual Term No definition available.
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- Definition Probability Of Entering Into A Fundamental Transaction No definition available.
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- Definition Warrants Exercise Price No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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