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Warrants (Details) - Assumptions in Monte Carlo simulation model to estimate the fair value of the warrant liability (Warrant [Member], USD $)
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12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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| Warrants (Details) - Assumptions in Monte Carlo simulation model to estimate the fair value of the warrant liability [Line Items] | ||
| CDTi stock price (in Dollars per share) | $ 1.16 | $ 2.11 |
| Strike price (in Dollars per Share) | $ 1.25 | $ 2.26 |
| Expected volatility | 80.50% | 91.60% |
| Risk-free interest rate | 1.60% | 0.90% |
| Dividend yield | ||
| Expected life in years | 5 years | 6 years |
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Monte Carlo Simulation Model [Member]
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| Warrants (Details) - Assumptions in Monte Carlo simulation model to estimate the fair value of the warrant liability [Line Items] | ||
| CDTi stock price (in Dollars per share) | $ 1.51 | $ 2.17 |
| Strike price (in Dollars per Share) | $ 1.25 | $ 7.92 |
| Expected volatility | 73.60% | 71.30% |
| Risk-free interest rate | 1.80% | 0.30% |
| Dividend yield | ||
| Expected life in years | 4 years 186 days | 292 days |