Fair Value of Financial Assets and Liabilities - Derivative Instruments (Details 2) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items]
Volatility	91.00%	177.00%
Expected term (years)	4 years	4 years
Risk-free interest rate	1.30%	0.60%
Dividend yield	0.00%	0.00%
Exercise price	$ 0.14	$ 0.14
Common stock closing price	$ 0.21us-gaap_SharePrice	$ 0.50us-gaap_SharePrice
2011 [Member] \| Warrant [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items]
Volatility	155.00%	155.00%
Expected term (years)	1 year 11 months 23 days	2 years 11 months 23 days
Risk-free interest rate	0.67%	0.78%
Dividend yield	0.00%	0.00%
Exercise price	$ 0.46	$ 0.46
Common stock closing price	$ 0.21	$ 0.50
June 26, 2013 [Member] \| Warrant [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items]
Volatility	155.00%	152.00%
Expected term (years)	3 years 5 months 26 days	4 years 5 months 26 days
Risk-free interest rate	1.23%	1.50%
Dividend yield	0.00%	0.00%
Exercise price	$ 0.14	$ 0.14
Common stock closing price	$ 0.21	$ 0.50
July 15, 2013 [Member] \| Warrant [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items]
Volatility	155.00%	151.00%
Expected term (years)	3 years 6 months 14 days	4 years 6 months 14 days
Risk-free interest rate	1.25%	1.53%
Dividend yield	0.00%	0.00%
Exercise price	$ 0.14	$ 0.14
Common stock closing price	$ 0.21	$ 0.50
December 23, 2013 [Member] \| Warrant [Member]
Fair Value Assumptions and Methodology for Assets and Liabilities [Line Items]
Volatility	151.00%	164.00%
Expected term (years)	3 years 11 months 23 days	4 years 11 months 23 days
Risk-free interest rate	1.37%	1.74%
Dividend yield	0.00%	0.00%
Exercise price	$ 0.25	$ 0.25
Common stock closing price	$ 0.21	$ 0.50

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Agreed upon price for the exchange of the underlying asset.

+ 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=36462937&loc=d3e19207-110258

+ Details

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- Definition

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

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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

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

+ References

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- Definition

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

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- Definition

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

+ References

No definition available.

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