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Note 7 - Accrued Expenses - Major Components of Accrued Expenses (Details) - USD ($)
May 31, 2021
Nov. 30, 2020
Salaries, wages, and commissions $ 614,764 $ 726,625
Accrued warranty expense 267,500 291,454
Other 284,397 261,233
Total accrued liabilities, current $ 1,166,661 $ 1,279,312