Debt (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Less debt discount	$ (1,837,076)	$ (1,457,025)
Total - long term debt	7,041,112	5,671,162
8% convertible promissory notes due on august 2017
Debt Instrument [Line Items]
Convertible debt, due date	2017-08
Convertible debt	$ 8,878,188	$ 7,128,187