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Summary of Tax Credit Carryforwards (Details) (USD $) | 12 Months Ended
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Nov. 30, 2012
Income Taxes Summary Of Tax Credit Carryforwards 1 | $ 188,494
Income Taxes Summary Of Tax Credit Carryforwards 2 | 609,991
Income Taxes Summary Of Tax Credit Carryforwards 3 | 1,731,495
Income Taxes Summary Of Tax Credit Carryforwards 4 | 3,174,989
Income Taxes Summary Of Tax Credit Carryforwards 5 | 2,792,560
Income Taxes Summary Of Tax Credit Carryforwards 6 | 2,044,857
Income Taxes Summary Of Tax Credit Carryforwards 7 | 854,218
Income Taxes Summary Of Tax Credit Carryforwards 8 | 1,056,516
Income Taxes Summary Of Tax Credit Carryforwards 9 | $ 12,453,120

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