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Summary of Tax Credit Carryforwards (Details) (USD $) | 12 Months Ended
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Nov. 30, 2014
Income Taxes Summary Of Tax Credit Carryforwards 1 | $ 188,494 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZerosMPZeroqVVDThreergk
Income Taxes Summary Of Tax Credit Carryforwards 2 | 609,991 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroHVTwobNinerfLEightbmp
Income Taxes Summary Of Tax Credit Carryforwards 3 | 1,731,495 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZerolgThreemTNThreenczzc
Income Taxes Summary Of Tax Credit Carryforwards 4 | 3,174,989 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroyNineFivekpDFThreexWcZero
Income Taxes Summary Of Tax Credit Carryforwards 5 | 2,792,560 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroTwoHNZeroLphWrHHJ
Income Taxes Summary Of Tax Credit Carryforwards 6 | 2,044,857 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroZeroBbldNMKfDrt
Income Taxes Summary Of Tax Credit Carryforwards 7 | 854,218 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroKfHBpDNineBXnFR
Income Taxes Summary Of Tax Credit Carryforwards 8 | 1,073,610 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroSevenqHTNineLNinePQTwoEightTwo
Income Taxes Summary Of Tax Credit Carryforwards 9 | 1,410,557 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroFourFoursTkpQTEightNineTy
Income Taxes Summary Of Tax Credit Carryforwards 10 | 1,950,600 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroypPFFourgXSevenwyQW
Income Taxes Summary Of Tax Credit Carryforwards 11 | $ 15,831,371 sdev_SummaryOfTaxCreditCarryforwardsZeroTwoSixNineFourZeroFourQgJdDWMCZeroFq

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