Debt (Detail) (USD $)	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Debt Instrument [Line Items]
Convertible debt	$ 6,628,520	$ 772,500
Less debt discount	(1,531,943)
Subtotal - net of debt discount	5,096,577	772,500
Less current portion		772,500	772,500
8% convertible promissory notes	5,096,577	0
10% convertible note
Debt Instrument [Line Items]
Convertible debt, due date	2012-06
Convertible debt		600,000
8.75% convertible debenture
Debt Instrument [Line Items]
Convertible debt, due date	2012-01
Convertible debt		172,500
8% convertible promissory notes due on august 2017
Debt Instrument [Line Items]
Convertible debt, due date	2017-08
Convertible debt	5,128,520
8% convertible promissory notes due on september 2017
Debt Instrument [Line Items]
Convertible debt, due date	2017-09
Convertible debt	$ 1,500,000