Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details)	3 Months Ended
Oct. 31, 2013
Capital Stock Schedule Of Share-based Payment Award, Stock Options, Valuation Assumptions 1	0.60%
Capital Stock Schedule Of Share-based Payment Award, Stock Options, Valuation Assumptions 2	66.34%
Capital Stock Schedule Of Share-based Payment Award, Stock Options, Valuation Assumptions 3	3.00
Capital Stock Schedule Of Share-based Payment Award, Stock Options, Valuation Assumptions 4	0.00%

Capital Stock Schedule Of Share-based Payment Award, Stock Options, Valuation Assumptions 4

No definition available.

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