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Note 6 - Accrued Expenses (Tables) | 12 Months Ended
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Nov. 30, 2014
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | November 30, 2014 |  |  | November 30, 2013 |
Salaries, wages, and commissions |  | $ | 673,934 |  |  | $ | 836,200 |
Accrued warranty expense |  |  | 234,266 |  |  |  | 220,719 |
Other |  |  | 676,128 |  |  |  | 661,556 |
|  | $ | 1,584,328 |  |  | $ | 1,718,475 |

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