Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) (USD $)	9 Months Ended
Oct. 31, 2012
Fair Value Of Financial Instruments Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation 1	$ 53,948
Fair Value Of Financial Instruments Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation 2	(6,408)
Fair Value Of Financial Instruments Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation 3	0
Fair Value Of Financial Instruments Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation 4	0
Fair Value Of Financial Instruments Fair Value, Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation 5	$ 47,540

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