Derivative and Hedging Financial Instruments - Summary of Realized and Unrealized Gains and Losses Related to Derivative Instrument (Detail) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Gain Loss On Investments [Abstract]
Realized gains on commodity derivative	$ 432,158	$ 639
Change in fair value of commodity derivative	(125,773)
Change in fair value of warrant derivative	808,278	(808,278)
Realized loss on warrant derivative	(7,000,000)
Total realized and unrealized gains/(losses) recorded	$ (5,885,337)	$ (807,639)

Realized And Unrealized Gains Losses Related To Derivative Instruments

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- Definition

Amount of decrease in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

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Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

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- Definition

The difference between the book value and the sale price of agreements to purchase or sell mineral resources, energy, and agricultural products at some future point. This element refers to the gain (loss) included in earnings and not to the cash proceeds.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.

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