Derivative Liabilities - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Expected life	1 year 8 months 12 days	10 months
Fair value assumptions, expected dividend rate	0.00%
Volatility	45.00%	71.00%
Risk-free interest rate	0.30%	0.11%
Gain or loss on the embedded derivative financial instrument		$ 113,300
Derivative liabilities	17,190,000	830,000
Derivative
Derivative [Line Items]
Volatility		110.00%
Risk-free interest rate		0.60%
10% Convertible Redeemable Preferred Stock
Derivative [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	58,352
Expected life	2 years 6 months
Fair value assumptions, expected dividend rate	0.00%
Volatility	90.00%	117.00%
Risk-free interest rate	0.40%	1.00%
Number of shares of common stock called by warrants, percentage of outstanding principal		5.00%
Derivative liabilities		797,000
Change in fair value of derivative		13,300
Additional Paid in Capital		57,000
Placement Agent Warrants
Derivative [Line Items]
Warrants Not Settleable in Cash, Fair Value Disclosure	296,200	81,700
Change in fair value of warrant liability	214,500	405,800
Conversion Options
Derivative [Line Items]
Derivative liability at fair value	1,945,200
Increase decrease in fair value of un hedged derivative instruments	10,870,400	415,700
Conversion Options | Issuances date
Derivative [Line Items]
Derivative liability at fair value	12,400,000
Warrant
Derivative [Line Items]
Derivative liability at fair value		1,900,000
Increase decrease in fair value of un hedged derivative instruments	4,235,900	223,300
Warrant | Issuances date
Derivative [Line Items]
Derivative liability at fair value	777,400
Warrant | Issuances date | Derivative
Derivative [Line Items]
Derivative liability at fair value	$ 4,790,000