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Share-based Compensation Arrangement by Share-based Payment Award, Remaining Contractual Term, Outstanding and Exercisable (Details) | 12 Months Ended
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Nov. 30, 2016
Stock Purchase Options And Warrants Share-based Compensation Arrangement By Share-based Payment Award, Remaining Contractual Term, Outstanding And Exercisable 1 | 2.8
Stock Purchase Options And Warrants Share-based Compensation Arrangement By Share-based Payment Award, Remaining Contractual Term, Outstanding And Exercisable 2 | 3.8
Stock Purchase Options And Warrants Share-based Compensation Arrangement By Share-based Payment Award, Remaining Contractual Term, Outstanding And Exercisable 3 | 2.8
Stock Purchase Options And Warrants Share-based Compensation Arrangement By Share-based Payment Award, Remaining Contractual Term, Outstanding And Exercisable 4 | 3.8

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