Derivative Liabilities (Details 1) - Derivative Liabilities [Member] |
12 Months Ended | |||||||||||||
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Dec. 31, 2017
$ / shares
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| Summary of fair values of derivative warrants on basis of valuation model | ||||||||||||||
| Market value of common stock on measurement date | $ 0.66 | [1] | ||||||||||||
| Adjusted exercise price | $ 1.67 | |||||||||||||
| Risk free interest rate | 2.09% | [2] | ||||||||||||
| Warrant lives in years | 4 years 1 month 6 days | |||||||||||||
| Expected volatility | 80.00% | [3] | ||||||||||||
| Expected dividend yield | [4] | |||||||||||||
| Probability of stock offering in any period over 5 years | 100.00% | [5] | ||||||||||||
| Offering price estimated as of December 31, 2017 | $ 0.50 | [6] | ||||||||||||
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