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Note 7 - Accrued Expenses (Tables) | 6 Months Ended
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May 31, 2020
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | May 31, 2020 |  |  | November 30, 2019 |
Salaries, wages, and commissions |  | $ | 679,353 |  |  | $ | 555,201 |
Accrued warranty expense |  |  | 268,233 |  |  |  | 203,185 |
Other |  |  | 264,167 |  |  |  | 374,440 |
|  | $ | 1,211,753 |  |  | $ | 1,132,826 |

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