Fair Value Measurements (Reconciliation Of Changes In The Fair Value Of Liabilities) (Details) - Warrant Liabilities [Member] - USD ($) |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Balance | $ 7,853,635 | $ 1,573,366 |
| Additions | ||
| Unrealized (gains) losses, net | (3,366,496) | 17,689,580 |
| Transfers out of level 3 | (3,029,115) | |
| Balance | $ 4,487,139 | $ 16,233,831 |
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- Definition Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Unrealized (Gains) Losses 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 Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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