Warrants (Details) - Assumptions and fair value of warrants (Warrant [Member], USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Warrant [Member]
Warrants (Details) - Assumptions and fair value of warrants [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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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

+ Details

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- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

+ Details

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- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

+ Details

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- Definition

The exercise (or strike) price stated in the contract. The fixed price at which the option holder can purchase, in the case of a call option, or sell, in the case of a put option, on the underlying security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 40

-Section 50

-Paragraph 5

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6445032&loc=d3e90205-114008

+ Details

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

+ Details

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