Convertible Notes Payable - Additional Information (Detail) (USD $)	3 Months Ended
	Apr. 30, 2013	Jan. 31, 2013
Debt Instrument [Line Items]
Convertible notes	$ 2,035,828	$ 1,909,714
Warrants, exercise price	0.40
Warrants and Rights Outstanding	6,724
8% Senior Subordinated Convertible Notes due February 1, 2015
Debt Instrument [Line Items]
Convertible notes	150,000	150,000
Convertible notes, interest rate	8.00%
Convertible notes payable, interest payment terms	Notes bear interest at a rate of 8% annually, payable semi -annually on December 31 and June 30.
Convertible notes, maturity date	Feb. 01, 2015
Debt, convertible latest date	Feb. 01, 2015
Debt conversion, price per share of common stock	$ 0.25
Convertible debt, redemption price as a percentage of principal amount	108.00%
Earliest redemption date convertible debt	Jun. 30, 2014
Debt conversion description	The Company may require the holders of the 8% Notes to convert to common stock at the then applicable conversion rate at any time after June 30, 2013 if: i) our 10% Notes have been fully repaid or converted and ii) the closing price of our common stock has exceeded 150% of the then applicable Conversion Price for no less than 30 consecutive trading days prior to giving notice.
8% Senior Subordinated Convertible Notes due February 1, 2015 | Minimum
Debt Instrument [Line Items]
Closing price, percentage of applicable Conversion Price	150.00%
10% Senior Subordinated Convertible Notes due January 31, 2016
Debt Instrument [Line Items]
Convertible notes	1,083,315	1,066,611
Convertible notes, interest rate	10.00%
Convertible notes payable, interest payment terms	The notes bear interest at a rate of 10% annually, payable semi- annually on January 31 and July 31.
Convertible notes, maturity date	Jan. 31, 2013
Debt conversion, price per share of common stock	$ 0.11485
9% Senior Subordinated Convertible Notes due February 15, 2016
Debt Instrument [Line Items]
Convertible notes	802,513	693,103
Proceeds from issuance of convertible notes payable	$ 100,000
Convertible notes, interest rate	9.00%
Convertible notes payable, interest payment terms	If the Average Daily Value of Trades ("ADVT") during the prior 90 days as reported by Bloomberg is greater than $100,000, the Note is callable at a price of 105% of the Note's par value, and if the ADVT is less than $100,000, the Note is callable at a price of 110% of the Note's par value.
Warrants, exercise price	0.40
Warrants isssued to purchase common stock shares	75,000