Warrants (Details 2) (USD $)	12 Months Ended
Dec. 31, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	6,000
Exercise Price	$ 13.75
Expected Term	5 years 7 months 17 days
Expected Volatility	151.00%
Dividend Yield	0.00%
Risk Free Rate	1.63%
Warrants [Member]
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	958,185
Exercise Price	$ 18.35
Expected Term	1 year
Expected Volatility	95.00%
Dividend Yield	0.00%
Risk Free Rate	1.47%
Warrants [Member] \| Series A January 27, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	315,676
Stock Price on Measurement Date	$ 7.00
Exercise Price	$ 15.00
Expected Term	3 years
Expected Volatility	150.00%
Dividend Yield	0.00%
Risk Free Rate	0.76%
Warrants [Member] \| Series B January 27, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	157,846
Stock Price on Measurement Date	$ 7.00
Exercise Price	$ 45.00
Expected Term	5 years
Expected Volatility	150.00%
Dividend Yield	0.00%
Risk Free Rate	1.61%
Warrants [Member] \| Series C November 19, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	145,399
Stock Price on Measurement Date	$ 9.37
Exercise Price	$ 12.00
Expected Term	5 years 6 months
Expected Volatility	94.60%
Dividend Yield	0.00%
Risk Free Rate	1.64%
Warrants [Member] \| Series D November 19, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	193,865
Stock Price on Measurement Date	$ 9.37
Exercise Price	$ 9.37
Expected Term	6 months
Expected Volatility	93.44%
Dividend Yield	0.00%
Risk Free Rate	0.07%
Warrants [Member] \| Series E November 19, 2014
Assumption used to value warrants using Black-Scholes pricing model
Number of Shares Underlying Warrants Granted	145,399
Stock Price on Measurement Date	$ 9.37
Exercise Price	$ 15.00
Expected Term	7 years 6 months
Expected Volatility	94.60%
Dividend Yield	0.00%
Risk Free Rate	1.64%

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Share based compensation arrangement by share based payment award stock price on measurement date.

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No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.D.2)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iv)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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