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Common Stock Options and Warrants (Detail) (USD $)
 1 Months Ended 2 Months Ended 12 Months Ended 12 Months Ended 0 Months Ended 1 Months Ended
Aug. 31, 2012
Mar. 29, 2012
Jan. 31, 2013
Jan. 31, 2012
Jan. 07, 2013
Jun. 19, 2012
Jan. 31, 2011
Jan. 31, 2007
Jan. 31, 2013
Private Placement [Member]
Mar. 31, 2013
Private Placement [Member]
Jan. 07, 2013
Warrant [Member]
Aug. 31, 2012
Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period   2,500,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased (in Dollars per share)   $ 0.06         $ 0.06          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (in Dollars)   $ 99,924                    
Fair Value Assumptions, Expected Term   5 years                 3 years 5 years
Fair Value Assumptions, Expected Volatility Rate   305.30%                 210.18% 194.81%
Fair Value Assumptions, Risk Free Interest Rate   1.01%                 0.41% 0.59%
Debt Conversion, Converted Instrument, Warrants or Options Issued                 6,626,486      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) 0.02   0.02 0.12   0.05 0.12 0.04        
Warrants and Rights Outstanding (in Dollars)       2,859,820 25,417     16,000        
Expiration of Warrants     3,766,666                  
Shares, Issued           2,000,000       2,000,000    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 6,814,000         1,000,000   400,000        
Amortization of Debt Discount (Premium) (in Dollars) 132,332                      
Fair Value Assumptions, Exercise Price (in Dollars per share)                     $ 0.02 $ 0.02
FairValueWarrants (in Dollars)                       $ 132,332
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number     10,250,000               1,000,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price (in Dollars per share)     $ 0.17               $ 0.02  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     2,500,000 2,000,000             25,417