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Summary of Significant Accounting Policies (Details Textual) (USD $)
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3 Months Ended | 9 Months Ended | ||
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Aug. 31, 2012
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Aug. 31, 2011
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Aug. 31, 2012
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Aug. 31, 2011
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| Summary of Significant Accounting Policies (Textual) [Abstract] | ||||
| Period over which patents are amortized on the straight-line method | 17 years | |||
| Advertising, cooperative and promotional expenses | $ 1,769,423 | $ 1,322,522 | $ 5,845,845 | $ 4,771,316 |
| Shipping costs | $ 800,854 | $ 670,043 | $ 2,406,549 | $ 2,126,917 |
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- Details
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- Definition
Total amount received by an entity from a vendor under a cooperative advertising arrangement that has been offset against advertising expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition
Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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