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Basis of Presentation (Details Textual) (USD $)	3 Months Ended				12 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013 T D Bank [Member]
Net Income (Loss) Attributable To Parent	$ (844,480)	$ (10,121,466)			$ (26,300,000)
Cash and Cash Equivalents, At Carrying Value	$ 7,003,741	$ 4,695,004	$ 6,736,962	$ 5,711,038

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