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Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Level 2 [Member] |  |
Fair Value of Financial Instruments [Abstract] |  |
Assets, fair value | $ 0 |
Liabilities, fair value | 0 |
Level 3 [Member] |  |
Fair Value of Financial Instruments [Abstract] |  |
Assets, fair value | 0 |
Liabilities, fair value | $ 0 |
Warrant liability, fair value |  | $ 7,673

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- Definition Fair value portion of warrants as of the balance sheet date. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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