Reconciliation of Derivative Liability Used in Determining Fair Value (Detail) (USD $)	3 Months Ended	9 Months Ended			12 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Conversion Options	Dec. 31, 2011 Conversion Options	Sep. 30, 2012 Conversion Options 8% convertible promissory notes	Sep. 30, 2012 Warrant	Dec. 31, 2011 Warrant	Sep. 30, 2012 Warrant 8% convertible promissory notes	Sep. 30, 2012 Bonus Warrants	Dec. 31, 2011 Bonus Warrants	Sep. 30, 2012 Placement Agent Warrant	Dec. 31, 2011 Placement Agent Warrant
Derivative [Line Items]
Beginning Balance				$ 113,271			$ 1,875,463			$ 70,343		$ 487,555
Fair value of derivative liability		(401,961)	487,555		(118,663)	982,932			427,888		797,185		487,555
Change in fair value		113,300		(113,271)	(5,392)	(262,932)		1,875,463	(127,888)	(13,309)	(492,111)	(401,961)
Credited to common stock upon issuance of warrants	1,900,000						(1,875,463)			(57,034)	(234,731)
Ending Balance					$ 113,271	$ 720,000		$ 1,875,463	$ 300,000		$ 70,343	$ 85,594	$ 487,555