Derivative Liabilities - Additional Information (Detail) (USD $)	9 Months Ended			9 Months Ended					3 Months Ended		3 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013 Placement Agent	Sep. 30, 2013 Issuances date	Sep. 30, 2013 10% Convertible Redeemable Preferred Stock	Sep. 30, 2013 Placement Agent Warrants	Dec. 31, 2012 Placement Agent Warrants	Sep. 30, 2013 Conversion Options	Sep. 30, 2013 Conversion Options Issuances date	Sep. 30, 2013 Warrant	Sep. 30, 2013 Warrant Issuances date
Derivative [Line Items]
Derivative liability at fair value										$ 1,100,000		$ 270,000
Increase decrease in fair value of un hedged derivative instruments									500,000		270,000
Warrant exercise price			1.00			10
Warrants to purchase 10% Convertible Preferred Stock						10.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						58,352
Expected life, in years	1 year 10 months 24 days					5 years
Fair value assumptions, expected dividend rate	0.00%				0.00%	0.00%
Volatility	45.00%				50.00%	129.00%
Risk-free interest rate	0.30%				0.40%	2.10%
Warrants Not Settleable in Cash, Fair Value Disclosure							122,357	81,716
Change in fair value of warrant liability				40,641
Convertible debt, noncurrent	$ 7,041,112	$ 5,671,162