Notes Payable (Detail) (USD $)						12 Months Ended								3 Months Ended			3 Months Ended
	Apr. 30, 2013	Jan. 31, 2013	Apr. 30, 2013 Bridge Loan [Member] Non-Affiliated	Oct. 30, 2012 Bridge Loan [Member] Non-Affiliated	Aug. 31, 2012 Bridge Loan [Member] Non-Affiliated	Jan. 31, 2013 Shareholders Loan	Apr. 30, 2013 Shareholders Loan	Jan. 31, 2012 Shareholders Loan	Oct. 27, 2011 Shareholders Loan	Aug. 31, 2011 Shareholders Loan	Jan. 31, 2010 Shareholders Loan	Jan. 31, 2009 Shareholders Loan	Jan. 31, 2005 Shareholders Loan	Apr. 30, 2013 Shareholders Warrant [Member]	Apr. 30, 2013 Shareholders	Jan. 07, 2013 Shareholders	Apr. 30, 2013 Non-Affiliated Warrant [Member]	Apr. 30, 2013 Non-Affiliated	Apr. 30, 2013 Warrant [Member]	Apr. 30, 2013 Non-Affiliated	Jan. 07, 2013 Promissory Notes
Notes Payable, Related Parties, Current	$ 195,000	$ 195,000					$ 160,000	$ 340,000	$ 30,000	$ 150,000	$ 50,000	$ 80,000	$ 30,000								$ 35,000
Debt Instrument, Interest Rate, Stated Percentage			45.00%	15.00%			10.00%					5.00%									15.00%
Repayments of Notes Payable						180,000
Interest Payable, Current							91,055
Interest Payable	1,640
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)																1,000,000		6,814,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	0.04	0.02													0.02			0.02	0.25
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value (in Dollars)														25,417			132,332
Debt Instrument, Face Amount					300,000
Bridge Loan																				$ 376,807