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Activity within Non-controlling Interest (Detail) (USD $)	6 Months Ended
	Jul. 31, 2012
Noncontrolling Interest [Line Items]
Beginning Balance	$ 238,101
Distributions to non-controlling interest shareholder	(100,000)
Ending Balance	$ 138,101

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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