2. Basis of Presentation and Significant Accounting Policies (Details) (USD $)	Apr. 30, 2013
Details
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward	$ 10,864,000

- Definition

Amount of an unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward. This amount is presented as a reduction of the related deferred tax asset in the balance sheet if that deferred tax asset is not used. This amount is presented separately from the deferred tax asset for a net operating loss carryforward if this unrelated tax benefit is associated with a different tax position.

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