Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Oct. 31, 2012 Customer	Oct. 31, 2011 Customer	Oct. 31, 2012 Customer	Oct. 31, 2011 Customer	Jan. 31, 2012	Jan. 31, 2011
Summary Of Significant Accounting Policies [Line Items]
Management agreement, initial term			20 years
Number of major customers	3	3	3	3
Cash and cash equivalents	$ 500,964	$ 249,653	$ 500,964	$ 249,653	$ 164,361	$ 397,101
Computer and Software
Summary Of Significant Accounting Policies [Line Items]
Property plant and equipment, useful life			3 years
Furniture and fixtures
Summary Of Significant Accounting Policies [Line Items]
Property plant and equipment, useful life			8 years
Machinery and Equipment
Summary Of Significant Accounting Policies [Line Items]
Property plant and equipment, useful life			5 years
Brokerage money market account
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	$ 22,789		$ 22,789
Customer 1
Summary Of Significant Accounting Policies [Line Items]
Revenue from major customers as percentage of total revenues	20.80%	30.20%	24.00%	36.90%
Receivables from customers as percentage of total accounts receivable	9.70%		9.70%		14.10%
Customer 2
Summary Of Significant Accounting Policies [Line Items]
Revenue from major customers as percentage of total revenues	6.30%	10.30%	7.70%	19.10%
Receivables from customers as percentage of total accounts receivable	9.40%		9.40%		9.00%
Customer 3
Summary Of Significant Accounting Policies [Line Items]
Revenue from major customers as percentage of total revenues	4.20%	6.10%	4.90%	7.90%
Receivables from customers as percentage of total accounts receivable	5.50%		5.50%		4.20%