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Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	0 Months Ended								0 Months Ended		6 Months Ended
	May 07, 2014	Jun. 30, 2014	Apr. 18, 2014	Dec. 31, 2013	Mar. 29, 2013	Mar. 29, 2013 Warrant 1-1 and 1-5 [Member]	Mar. 29, 2013 Warrant 1-6 [Member]	Apr. 18, 2014 Warrant [Member]	May 07, 2014 Black Scholes Model [Member]	Apr. 18, 2014 Black Scholes Model [Member]	Jun. 30, 2014 Black Scholes Model [Member]
Class of Warrant or Right [Line Items]
Number of warrants issued								1,141,000
Common stock, shares issued		97,050,674	1,192,500	95,814,565
Fair value assumption, expected volatility									97.60%	99.30%	66.00%
Fair value assumption, risk free interest rate									0.90%	0.20%	1.00%
Fair value assumption, expected term									3 years	1 year 6 months	5 years
Fair value assumption, expected dividend yield									0.00%	0.00%	0.00%
Grant date fair value of the initial warrant valuation	$ 1.61	$ 2.56	$ 0.99
Issue of warrants for services	200,000
Closing market price of common stock					$ 3.00
Number of shares, exercisable right	100,000	1,441,000			6,905,576		500,000
Exercise price of warrants					0.37
Warrant outstanding, number value						$ 20,233,338
Warrant converted, number value							$ 1,465,000

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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