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Consolidated Statement of Stockholders' Equity (Deficit) (Parenthetical) | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($)
Series C Convertible Preferred Stock [Member] |
Warrant liability | $ 3,700,000
Loss on issuance convertible preferred stock | 1,500,000
Series C-1 Convertible Preferred Stock [Member] |
Warrant liability | 2,800,000
Loss on issuance convertible preferred stock | $ 478,000

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- Definition Loss on issuance Convertible Preferred Stock . + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Warrant liability. + References No definition available. + Details
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Period Type: | instant

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |