Derivative Financial Instruments (Details) - Derivative instrument liability - Warrants - Black-Scholes option pricing model - $ / shares	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Range of assumptions used to determine the fair value of the warrants
Fair value of Synergy common stock (in dollars per share)	$ 5.30	$ 2.79
Expected volatility (as a percent)	80.00%
Minimum
Range of assumptions used to determine the fair value of the warrants
Expected warrant term	4 days	9 months
Risk-free interest rate (as a percent)	0.00%	0.08%
Expected volatility (as a percent)		52.00%
Maximum
Range of assumptions used to determine the fair value of the warrants
Expected warrant term	2 years 4 months 24 days	3 years 4 months 24 days
Risk-free interest rate (as a percent)	0.78%	1.25%
Expected volatility (as a percent)		60.00%

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.

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

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

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

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

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