Organization and Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Schedule of Organization and Summary of Significant Accounting Policies [Line Items] | ||
| Fair value, beginning of period | $ 619 | $ 1,444 |
| Change in fair value | (619) | (825) |
| Fair value, end of period | $ 0 | $ 619 |
| X | ||||||||||
- Definition Change in fair value of warrants. No definition available.
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| X | ||||||||||
- Definition Class of warrants fair value disclosure. No definition available.
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| X | ||||||||||
- Definition Schedule of organization and summary of significant accounting policies. No definition available.
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